Journal articles on the topic 'Economic aspects of Feedlot runoff'

A gap between national beef consumption and beef production becomes an opportunity for beef cattle fattening business. The purpose of this research is to analyze the feasibility of beef cattle fattening. The research was conducted at the main office of PT Catur Mitra Taruma at South Jakarta and its feedlot stall at Desa Cariu, Kabupaten Bogor. Aqualitative analysis method was used to analyze the non-financial feasibility, that covered market aspects, technical aspects, management and law aspects, and also social, economic, and environmental aspects. The financial feasibility was analyzed quantitatively by investment criteria and switching value analysis. The result shows that beef cattle fattening in PT Catur Mitra Taruma is feasibleand it is more sensitive to the decreasing sales of beef cattle than to the increasing price of feed.

The period of high water flow from rivers is a complex phenomenon, which manifests itself in the form of large waters and floods. High flow periods are an important phase in the runoff of rivers, both by their extreme nature and by the effects they can produce on the components of the environment. The paper analyses several aspects related to the periods of water runoff from rivers: genetic factors, frequency, and temporal and spatial parameters of large waters and floods, case studies of the most representative floods, environmental, social and economic effects induced by floods.

Changes in land use and land cover affect the social, economic and natural aspects of any area. Mostly land use and land cover (LULC) changes are the result of population growth and human activities in the form of urban agglomerations and industrialization etc. Physical factors like soil structure and type, slope condition, topography are main aspects. Land use change defines the historical pattern that how people used that specific land which depends on the availability of resources and economic conditions. LULC changes may trigger the detrimental effects like increase in natural hazard events and changes in climatic patterns. Climatic pattern directly affects the precipitation, groundwater recharge, the amount of evapotranspiration and runoff generation. On regional and local scale, LULC change is a far-reaching issue because environment and climate condition depend on it

Abstract This study proposed a method for constructing a low impact development (LID) plan to improve the utilization rate of rainwater in a highway service area and solve the problem of waterlogging. Firstly, based on the theory of LID, taking the total runoff as the control goal, and combining it with the functional zoning of the highway service area and the characteristics of LID facilities, several LID schemes were proposed. Then, the evaluation system of the LID scheme in service area was established by the analytic hierarchy process (AHP). These preliminary construction schemes were compared from three aspects (runoff control efficiency, economic efficiency and social efficiency) to determine the best LID plan. Finally, taking the Pu'er tunnel service area as an example, the construction scheme of the sponge city service area was optimized.

The extreme flood events in the last decade in Central Europe served as a unique opportunity to study the impact of environmental changes on runoff process, to test the methods of their efficient assessment and to determine the applicability of the findings in effective flood protection measures. The paper presents the assessment of impact of environmental changes in landscape on the course and consequences of extreme floods. Assessment draws on selected indicators of environmental transformation related to rainfall-runoff processes, flood wave formation and transformation, and local retention capacity. The solution is based on geostatistical approach and applies to the Otava river basin located in the core zone of the extreme floods in August 2002 in Central Europe and representing area with high level of heterogeneity in terms of physicogeographic and social and economic aspects. The results of the presented research indicated evident links between physicogeographic characteristics of river basins, their anthropogenic transformation, and responses to extreme runoff situations. However the results hasn't proved the current intensity of river network shortening, riverbed transformation or floodplain and landscape modifications to be the main driving force of extremity of the flooding that occurred in August 2002 in Central Europe.

Abstract. Low streamflow as consequence of a drought event affects numerous aspects of life. Economic sectors that may be impacted by drought are, e.g. power production, agriculture, tourism and water quality management. Numerical models have increasingly been used to forecast low-flow and have become the focus of recent research. Here, we consider daily ensemble runoff forecasts for the river Thur, which has its source in the Swiss Alps. We focus on the low-flow indices duration, severity and magnitude, with a forecast lead-time of one month, to assess their potential usefulness for predictions. The ECMWF VarEPS 5 member reforecast, which covers 18 yr, is used as forcing for the hydrological model PREVAH. A thorough verification shows that, compared to peak flow, probabilistic low-flow forecasts are skillful for longer lead-times, low-flow index forecasts could also be beneficially included in a decision-making process. The results suggest monthly runoff forecasts are useful for accessing the risk of hydrological droughts.

Socio-economic aspects and impact of land use change on sediment production dynamics in the northeastern region of India The northeastern region of India, with an area of 255 090 km2, is predominantly hilly. Major socio-economic factors affecting sediment production in the region are; shifting cultivation, land tenure system, fast growing population, small land-holdings, deforestation and free range grazing. A multi-disciplinary long-term study showed that 92.9 to 99.1% of rainwater can be retained in-situ, compared to 66.3% in shifting cultivation. Mean annual soil loss varied from 11.2 to 97.2 t km-2 in new land use systems as against 3621.3 t km-2 in shifting cultivation. The sediment load per litre of runoff from watersheds varied from 1250-20,300 mg suspended sediment, 5.4 to 23.6 mg NO3 - N, 2.3 to 6.5 mg P-PO4, 17.2 to 35.8 mg K2O, 0.4 to 1.8 mg Zn, 0.9 to 2.7 mg Mn, 6.5 to 12.0 mg Mg, 7.1 to 18.4 mg Fe and 4.0 to 7.2 mg SO4. The sediment transport from the catchments showed spatial and temporal variations.

Kyrgyzstan is located in the runoff formation area of Aral Sea basin. The ecological protection of this country has a great effect on the downstream and Aral Sea conservation. There were a few studies about this region carried out from ecological policy aspects. The aim of this study was two-fold. First, we characterized the eco-policy system structure of Kyrgyzstan in different stages. It means the transition from “command and control” to “market-based” ecological policy. The priority of ecological policy was changed from “sustain economic growth and poverty reduction” to “sustainable development and green economy”. We then used a data envelope analysis method to evaluate the effects of eco-policy and government governance through eco-efficiency. The results are that (1) the eco-efficiency achieved the relative optimal state and the ecological policy obtained a relatively positive effect as a whole; (2) economic development promotes the protection of the ecological environment. It is the first time that quantitative method has been used to analyze the effects of ecological policy of Kyrgyzstan. The model results can reflect comprehensive effects of ecological policy in social, economic, and ecological aspects. This study provides a reference for those who want to shape the next generation of eco-environmental policies both in Kyrgyzstan and other Central Asian countries.

Abstract. Streamflow droughts, characterized by low runoff as consequence of a drought event, affect numerous aspects of life. Economic sectors that are impacted by low streamflow are, e.g., power production, agriculture, tourism, water quality management and shipping. Those sectors could potentially benefit from forecasts of streamflow drought events, even of short events on the monthly time scales or below. Numerical hydrometeorological models have increasingly been used to forecast low streamflow and have become the focus of recent research. Here, we consider daily ensemble runoff forecasts for the river Thur, which has its source in the Swiss Alps. We focus on the evaluation of low streamflow and of the derived indices as duration, severity and magnitude, characterizing streamflow droughts up to a lead time of one month. The ECMWF VarEPS 5-member ensemble reforecast, which covers 18 yr, is used as forcing for the hydrological model PREVAH. A thorough verification reveals that, compared to probabilistic peak-flow forecasts, which show skill up to a lead time of two weeks, forecasts of streamflow droughts are skilful over the entire forecast range of one month. For forecasts at the lower end of the runoff regime, the quality of the initial state seems to be crucial to achieve a good forecast quality in the longer range. It is shown that the states used in this study to initialize forecasts satisfy this requirement. The produced forecasts of streamflow drought indices, derived from the ensemble forecasts, could be beneficially included in a decision-making process. This is valid for probabilistic forecasts of streamflow drought events falling below a daily varying threshold, based on a quantile derived from a runoff climatology. Although the forecasts have a tendency to overpredict streamflow droughts, it is shown that the relative economic value of the ensemble forecasts reaches up to 60%, in case a forecast user is able to take preventive action based on the forecast.

The paper analyses variables hypothesized to affect the health of coral reefs. These variables include fishing pressure as measured by fisher density and land-based human activities as indicated by population, relative wealth, waste disposal and aspects of land use. Findings indicating that the healthiest coral reef areas are characterized by higher fisher densities as well as greater increases in population density were, at first, surprising. In retrospect, the results fit perfectly with human ecological theory; where possible, people tend to migrate from resource-poor to resource-rich areas. Any synchronic analyses of the interrelationships between the condition of aresource and associated population size or density will probably be confounded by the dynamics of the populations dependent on the resource. Hence, there is a need to account for this dynamic when researching anthropogenic effects on coral reefs. The findings also indicate that less-healthy reefs are found in areas with a higher percentage of land devoted to permanent crops; this appears to be related to observed high levels of runoff from permanent crops.

Introduction. This investigation aims at studying the individual components of the hydrological and hydrochemical regimes of the Danube River (within Ukraine) in connection with the widespread use of the river's water for water supply and irrigation in the southern region, as well as to ensure more effective regulation of water-salt regime of the Danube lakes using the Danube River as a main source for their water renewal. One of important aspects includes the study of the regime of the Danube River's suspended sediments brought to its delta due to their impact on the formation of the delta at the river's mouth of as well as due to the impact on siltation of deltaic and pre-delta lakes and canals connecting the lakes with the Danube River. Purpose. The purpose of the work is to study long-term and current trends related to changes in hydrological (water levels and discharges, suspended sediments runoff) and hydrochemical (mineralization) regimes of the Danube River within the Ukrainian interval from Reni to Izmail, internal annual distribution of water runoff, as well as suspended sediments runoff and mineralization during the years of varying water content. Results. The statistical analysis of long-term series of observations over the Danube River within the interval from Reni to Izmail resulted in discovering that time trends of average, maximum and minimum water levels (1921-2015) and discharges (1840-2015) indicate the presence of a weak increase in their growth over time, with a more pronounced increase in maximum water levels or discharges. The annual distribution shows the general synchronicity of fluctuations in runoff characteristics, and the maximum monthly values of water discharge differ have more pronounced seasonal fluctuations. The study shows the presence of a pronounced trend to reduction of suspended sediments runoff of the Danube River at Reni (for the period of 1840-2015), with their most intensive decrease over the period of 1990-2015. Annual distribution of average monthly suspended sediments runoff of the Danube River for the years with typical water content (for the period of 1978-2015) showed that they have seasonal fluctuations. At the same time, there is a decrease in the suspended sediments runoff along the length of the river from Reni to Izmail. The long-term course of average annual mineralization values of the Danube River at Izmail (1981-2015) is characterized by their decrease against the background of a small increase in average annual discharges. As per the annual distribution of mineralization values associated with all water content groups there are the periods related to the phases of the river's yearly water regime during and the economic use of water. Conclusion. Thus, the increase in the long-term period of the Danube River runoff within the interval from Reni to Izmail will contribute to the development of the region's economy and water supply, irrigated farming, regulation of the Danube Lakes filling with weakly mineralized river water. At the same time, the reduction of the suspended sediments runoff will restrain the siltation of the inlet canals connecting the lakes with the Danube River, which will improve the water renewal of the lakes with the river's fresh waters.

We examine water resource mapping as an important component of the geographical approach in land hydrology and in the water sector which serves to assist considerably in dealing with water problems and water resource management. We suggest that seven groups of water resource maps be distinguished: introductory maps, maps of formation of surface and subsurface water regimes, maps of assessments of water resource potential, maps of water management, maps of anthropogenic impacts on water, maps of hazardous hydrological phenomena and maps of water protection measures. Characteristic properties water resource mapping for atlas products are identified using a case study of territory surrounding Lake Baikal as a site of global significance. We compiled an inventory of water resource themes covered by various atlases of the Baikal region and determined gaps relating to economic aspects of water and to maps on water protection. Limitations of the traditional isoline method in geographical water resource mapping are shown. At hillslope level where atmospheric precipitation transforms to surface runoff further to stream flow, it is recommended that the indication localization method be used, which is based on interdependencies of components of the geosystem. Water runoff mapping at the regional level in the hydrographic network uses the technique of long-channel (epure) mapping based on tools of structural hydrographic and Horton-Strahler classification. A technique of regionalization is described for flood hazards, water protection and recreation zoning of Baikal’s shores as well as cartographic modeling of processes in the Selenga river delta.

The utilization of steep lands by planting forestry and agricultural species can provide benefits from soil-water conservation and economic aspects. The combination of planting <em>Neolamarckia cadamba-Phaseolus vulgaris</em> and terrace systems can increase land use values, such as soil conservation, crop production, and farmers’ income. The aim of this study was to analyze silvicultural, hydro-orological, and economic aspects of a combination of forestry-agricultural crops<em> </em>(<em>N. cadamba – P. vulgaris</em>) and terrace systems on two slope classes. Two study plots were established on a steep gradient (25–40%) and a very steep gradient (&gt;40%). The results showed an annual increase in the average diameter and height of <em>N. cadamba</em> of 1.78 cm and 1.84 m, respectively on the steep slope, and 1.68 cm and 1.53 m, respectively on the very steep slope. The surface run off and erosion rate were lower on the steep ground compared to the very steep ground. Erosion hazard indices and levels on the plots in the steep slope and very steep slope were categorized as low and very low; meanwhile the erosion hazard class was I. The profit of <em>P. vulgaris cultivation </em>was IDR 9,360,000.00 ha^–1 per cropping seasonon steep slope and IDR 6,480,000.00 ha^–1 per cropping season on very steep slope. The planting of <em>P. vulgaris</em> as an intercropping plant to fill empty land in between <em>N. cadamba</em> can increase the economic value obtained from selling <em>P. vulgaris</em> in the short term until the leaves of the <em>N. cadamba</em> plant are linked. The combination of planting <em>N. cadamba–P. vulgaris</em> and terrace system on steep slopes is therefore more profitable not only from the economic perspective, but also in lowering runoff and potential erosion rates than on very steep lands.

Weed control in vineyards is essential to allow optimal vines development. In this study, three different techniques (hoeing, chemical control, and mulching) used in vineyard’s under-row weed control were compared considering their: operative and economic aspects, energy consumptions and environmental impacts. Trials were performed in a vineyard located in Canelli (AT), Italy, characterized by 3 different gradient slopes (<5%, 10-15%, >20%). Each technique has been tested in 3 adjacent rows per each of the 3 vineyard slopes (randomized block test). Two weed control treatments were performed (at 50 days interval) during the peak vegetation growth period (from mid-April to mid-August). Major families of weeds in the test rows were described and scored (%), and weed control efficiency was measured by comparing the weeds cover area projected to the ground vs the test area. Results highlights that the use of mulching machine and the boom sprayer permits to maintain a weed coverage lower than 30% independently of slope gradient. The hoeing, characterized by low operational costs (26 € h–1) and energy requirement (550 MJ ha–1), scored acceptable working performances, but, in case of heavy rains, it can cause a runoff of the soil. The chemical weed control, also if results a valid choice in term of work quality, is not a valid solution from the environmental point of view. The mulching machine, although shows higher operating costs compared to other machines tested (30 € h–1), can be considered as the most viable alternative to chemical weed control because its working efficiency is comparable to that obtained by the sprayer.

Global warming, while increasing human demand for water, is reducing water availability by reducing runoff flows and the effective amount of water between seasons, making water scarcity a growing problem globally. Water management plays an important role in mitigating global warming, improving the water cycle, reducing carbon emissions, and providing clean energy, and pricing water is considered a good approach to water management. Pricing water needs to take into account all sectors and aspects of society, such as domestic water, food and agriculture, energy, transport, industry, urban provision, human health, ecosystems, and the environment, and their interrelationships through water, within the context of the fundamental human rights to water and sanitation. This requires that every stakeholder should contribute to the development of water-related policies at every stage of the water interrelationship. This study investigated the relationship between water demand across different sectors of the economy using indicators for China, Australia, Japan, and the UK. Using panel analyses, this study finds that economic growth and population expansion increases the demand for water in all aspects. These findings have significant policy implications for water management. Because water prices can have an impact on global trade and, more importantly, are a major solution to global warming, water management policies should be considered at the global level, not only at the national level.

Droughts affect economic, social, and environmental aspects in regions such as the Korean Peninsula, where more than 70% of the area comprises forests; hence, their monitoring is imperative. Despite the many indices and methodologies developed for monitoring, diagnosing droughts using reanalysis data is challenging as the data are characterized by low resolution and simplified vegetation classification. This study utilized a recently released ERA5 reanalysis dataset and its vegetation type information to derive indices that represent meteorological drought. Furthermore, their accuracy in South Korea, based on observation data, was evaluated. The spatio-temporal variability of droughts was analyzed using various factor and correlation analysis methods considering different atmospheric variables and soil moisture. The validity of the method was verified by comparing the observed and obtained data. Soil moisture in the first and second soil layers was sensitive to droughts in low-vegetation areas, thus requiring relatively frequent monitoring of precipitation and evapotranspiration near the topsoil. High-vegetation areas were most affected in the third layers one month after the drought. Hence, forest drought monitoring should consider precipitation, evapotranspiration, and runoff one month in advance. The results obtained herein can be used for forest drought monitoring one month before its occurrence.

Sustainable stormwater management approaches in accordance with the EU Water Framework Directive (WFD) allow a source control to handle the quality and quantity of the runoff at local level or near the source. The most popular technologies applied in Europe are green roofs, porous pavements, retention basins and bioswales/raingardens. In this article, two of these solutions (retention tank with reuse, and rain garden, respectively), applied to single dwelling case studies in a suburban area in the Silesia Region (Poland), are illustrated and analyzed. The selected cases consider technical and economic aspects as the most important factors for decision on the selection of onsite stormwater management approach. Both systems have been operational for approximately two years. The retention tank proved a good solution, reducing stormwater overflows and allowing local water reuse for lawn irrigation; however, investment and maintenance costs in this case are relatively higher. The raingarden proved to work efficiently in this small scale implementation and implied much lower initial investment and costs. The economic sustainability of these interventions at single dwelling scale was analyzed, showing interesting returns, with outcome depending on the degree of possible water reuse (lower water bills) and availability of fiscal or fee incentives. Introduction of financial incentive schemes will encourage homeowners and developers to implement stormwater control solutions, allowing rapid amortization of investment costs with additional benefits to the community, such as reduced environmental impact of stormwater overflows and possible economies in the construction and management of stormwater systems.

Seawater quality is critical for island and coastal communities dependent on coastal tourism. Improper management of coastal development and inland watersheds can decrease seawater quality and adversely impact marine life, human health, and economic growth. Agricultural runoff and improper sewage management compromise nearshore water quality in many coastal regions and can impact visitation decisions of tourists who are drawn to these destinations. The purpose of this paper is to understand how tourists’ decisions to revisit Barbados might be affected by changes in coastal and marine quality. We use data collected from tourists to examine how tourists’ stated willingness to return is affected by scenarios involving changes in seawater quality, beach width and coral reef health. Results reveal that return decisions are sensitive to changes in all aspects of coastal and marine quality. A reduction in seawater quality discourages tourists’ intention to return more than other environmental factors. These results are of paramount interest to destination managers, marketers and policymakers who rely on repeat visitation data to develop marketing strategies and infer future direction. This research highlights the importance of prioritizing seawater quality management to protect the coastal tourism product, especially in small island developing states (SIDS) with a high reliance on tourism income.

The implementation of sustainable urban drainage systems (SUDS) is increasing due to their advantages, which transcend runoff control. As a result, it is important to find the appropriate SUDS locations to maximize the benefits for the watershed. This study develops a multiscale methodology for consolidated urban areas that allows the analysis of environmental, social, and economic aspects of SUDS implementation according to multiple objectives (i.e., runoff management, water quality improvements, and amenity generation). This methodology includes three scales: (a) citywide, (b) local, and (c) microscale. The citywide scale involves the definition of objectives through workshops with the participation of the main stakeholders, and the development of spatial analyses to identify (1) priority urban drainage sub-catchments: areas that need intervention, and (2) strategic urban drainage sub-catchments: zones with the opportunity to integrate SUDS due the presence of natural elements or future urban redevelopment plans. At a local scale, prospective areas are analyzed to establish the potential of SUDS implementation. Microscale comprises the use of the results from the previous scales to identify the best SUDS placement. In the latter scale, the SUDS types and treatment trains are selected. The methodology was applied to the city of Bogotá (Colombia) with a population of nearly seven million inhabitants living in an area of approximately 400 km2. Results include: (a) The identification of priority urban drainage sub-catchments, where the implementation of SUDS could bring greater benefits; (b) the determination of strategic urban drainage sub-catchments considering Bogotá’s future urban redevelopment plans, and green and blue-green corridors; and (c) the evaluation of SUDS suitability for public and private areas. We found that the most suitable SUDS types for public areas in Bogotá are tree boxes, cisterns, bioretention zones, green swales, extended dry detention basins, and infiltration trenches, while for private residential areas they are rain barrels, tree boxes, green roofs, and green swales.

While biofuels have been touted as a benefit for growers—with the ability to be planted on marginal lands, for improved wildlife habitat, to sustain soils, and to reduce runoff—there remains to be a general summary of how beneficial they really are. This paper aims to review the environmental effects, feasibility, and economic aspects of using native perennial grasses in North America as biofuels as opposed to traditional annual crops. The Scopus database was used to search for manuscripts relating to each topic. In some instances, very few results appeared, so a second database, Digitop, was also used. Native perennial grasses have been found to sequester carbon and cultivating them can create a carbon sink in the soil. Overall, wildlife benefit more by having native perennial grass for biofuels planted than annual maize and having fewer harvests a season is better for wildlife over the entire year. Economically, growing native perennial grasses can be advantageous especially on marginal land, where it has a comparatively high yield. Although the second-generation biofuel supply chain is susceptible to changing market prices, it can be made more resilient and has advantages, for example resistance against the impacts of drought. Although there are many cultivars to choose from, factors like climate, soil, and genetics can provide pertinent information to match each specimen’s ideal growing conditions to the right location.

AbstractHuman health risks in dealing with floods in a river basin in South-Western Finland are analysed as an example of scientific and practical challenges in systemic adaptation to climate change and in integrated governance of water resources. The analysis is based on case reports and plans, on literature studies and on conceptual models of risks and risk management. Flood risks in the Northern European study area are aggravated by melt- and storm-water runoff, ice jams and coastal flooding. Flood risk assessment is linked with management plans based on EU directives as applied in the case area. National risk management policies and procedures of increasing scope and depth have been devised for climate change, water resources and overall safety, but an integrated approach to health risks is still largely missing. The same is true of surveys of perceived flood risks, and participatory deliberation and collaborative planning procedures for flood risk management in the case area, specifically for adaptive lake regulation. Health impacts, risks and benefits, socio-economic and systemic risks, and over-arching prevention, adaptation and compensation measures are not fully included. We propose a systematic framework for these extensions. Particular attention needs to be given to health risks due to flooding, e.g. from water contamination, moist buildings, mental stress and infrastructure damage and also from management actions. Uncertainties and ambiguities about risks present continuing challenges. It is concluded that health aspects of flooding are complex and need to be better included in assessment and control, to develop more integrated and adaptive systemic risk governance.

The watershed (DAS) is an ecological system in which biotic and abiotic elements interact with each other. Watershed Management is expected to have an economic impact on people living within it without ignoring the sustainability and balance aspects of the watershed ecosystem itself. This study aims to determine the needs of water in the sub-watershed Kusambi Batulicin watershed. The targeted results will obtain the water balance suitability data based on the water balance, obtain the data of the population residing around the research area, and obtain the land based water management model. The method used to obtain the data is done by descriptive quantitative (primary data and data secondary). From Class Unit land for water availability is determined using runoff coefficient method based on land use information and annual rainfall data. The water requirement is calculated from the conversion to the population's viable living needs. This research uses the approach of the ecological area of Watershed (DAS) which process analysis and presentation is done spatially by utilizing Geographic Information System (GIS) technology. The result of the research is that the water needs of the people of Tanah Bumbu Regency = (826.352.700/23.340)/365 = 97 liters/person/day, water requirement = (97.229 x 97 x 365)/1.000)/1.000.000 = 3,44 million m3/year. The amount of water required for fisheries in Kusambi sub-waters is 15 liters/second/hectare, and water requirements = ((1,13 x 15 x 24 x 60 x 60 x 180)/1.000)/.1000.000 = 0,53 million m3/year, and the water supply of the Batulicin Watershed Cusambi Sub-watershed with total water needs is still relatively surplus.

The raw water feasibility is based on three aspects, such as quantity, quality, and continuity. This study aims to assess the feasibility of raw water on Bintan Island in quantity and quality terms The method used is a comprehensive analysis of hydrological and hydrogeological functions and water quality. The result of study shows that rainwater abundance in study location is not optimally stored as ground water due to limited catchment area and storage capacity of aquifer media which are dominated by rock units with low to moderate graduation rates (80%). The hydrogeology of study site is also dominated by local low productivity aquifer areas (70%) which are indicated by shallow aquifer layers. Therefore, the existence of reservoirs or storage is very important. The calculations results in 2017 show that raw water production of PDAM Tirta Kepri is 3,521,855 m3/year. While the community needs on Bintan Island in the same year amounted to 7,957,803 m3/year. Quality aspect analysis shows that the quality of well is lightly polluted (WQI = 0.59), while surface water is moderately polluted (WQI = 1.01). The parameter that gives the difference from two sources is iron content. Gibbs diagram analysis results show the weathering process by rainwater which erodes the land surface of bauxite mine and dissolves iron and flows along with runoff and into reservoirs. The potential for high iron pollution will increase often as Bintan Island is designated as a Special Economic Zone. Industrial and service activities will trigger acid rain which will cause a decrease in the value of rain pH and the process of dissolving iron on rocks and soil surfaces will increase.

Flood risk mapping forms the basis for disaster risk management and the associated decision-making systems. The effectiveness of this process is highly dependent on the quality of the input data of both hazard and vulnerability maps and the method utilized. On the one hand, for higher-quality hazard maps, the use of 2D models is generally suggested. However, in ungauged regions, such usage becomes a difficult task, especially at the microscale. On the other hand, vulnerability mapping at the microscale suffers limitations as a result of the failure to consider vulnerability components, the low spatial resolution of the input data, and the omission of urban planning aspects that have crucial impacts on the resulting quality. This paper aims to enhance the quality of both hazard and vulnerability maps at the urban microscale in ungauged regions. The proposed methodology integrates remote sensing data and high-quality city strategic plans (CSPs) using geographic information systems (GISs), a 2D rainfall-runoff-inundation (RRI) simulation model, and multicriteria decision-making analysis (MCDA, i.e., the analytic hierarchy process (AHP)). This method was implemented in Hurghada, Egypt, which from 1996 to 2019 was prone to several urban flood events. Current and future physical, social, and economic vulnerability maps were produced based on seven indicators (land use, building height, building conditions, building materials, total population, population density, and land value). The total vulnerability maps were combined with the hazard maps based on the Kron equation for three different return periods (REPs) 50, 10, and 5 years to create the corresponding flood risk maps. In general, this integrated methodology proved to be an economical tool to overcome the scarcity of data, to fill the gap between urban planning and flood risk management (FRM), and to produce comprehensive and high-quality flood risk maps that aid decision-making systems.

Most sewage collection systems designed between 19th and early to mid-20th century use single-pipe systems that collect both sewage and urban runoff from streets, roofs and other impervious surfaces. This type of collection system is referred to as a combined sewer system. During storms, the flow capacity of the sewers may be exceeded and the overflow discharged into a receiving water body (RWB) through spillways without any control and remediation. Combined sewer overflows (CSOs) may, therefore, produce serious water pollution and flooding problems in downstream RWBs. Methodologies for a rational management of CSOs quantity and quality share many commonalities, and these two aspects should be considered together in order to maximize benefits and promote local distributed actions, especially in high urban density areas where the space availability for the construction of CSO storage tanks is often a limiting factor. In this paper, a novel strategy to control downstream flow propagation of a CSO as well as to improve its quality is tested on a real case study in the area of the metropolitan city of Milan. The approach is based on the combination of grey, green and blue infrastructures and exploits the integrated storage and self-depuration capacities of a firstflush tank, a constructed wetland and a natural stream to obtain admissible flow rates and adequate water quality in the RWB. The results, evaluated through a modelling framework based on simplified equations of water and pollutants dynamics, show excellent performances for the integrated system, both in terms of flow control and pollution mitigation. The pollution, using biological oxygen demand concentration as a proxy of the whole load, was decreased by more than 90% and downstream flooding situations were avoided, despite the spillway was not regulated. Concerning the economic point of view, from a rough estimate of the costs, the system allows reducing the investment of 30 to 50% in respect to the traditional CSO controls based solely on flow detention tanks. The proposed approach, as well as the modelling framework for its effective implementation, appear strongly scalable in different world contexts and aim to fill the gap between urban and rural environments in the management of stormwater and CSOs, promoting the involvement of the water managers, the irrigation-reclamation agencies and regional authorities.

Abstract Background Assessment of the reasons for the ambiguous influence of forests on the structure of the water balance is the subject of heated debate among forest hydrologists. Influencing the components of total evaporation, forest vegetation makes a significant contribution to the process of runoff formation, but this process has specific features in different geographical zones. The issues of the influence of forest vegetation on river runoff in the zonal aspect have not been sufficiently studied. Results Based on the analysis of the dependence of river runoff on forest cover, using the example of nine catchments located in the forest-tundra, northern and middle taiga of Northern Eurasia, it is shown that the share of forest cover in the total catchment area (percentage of forest cover, FCP) has different effects on runoff formation. Numerical experiments with the developed empirical models have shown that an increase in forest cover in the catchment area in northern latitudes contributes to an increase in runoff, while in the southern direction (in the middle taiga) extensive woody cover of catchments “works” to reduce runoff. The effectiveness of geographical zonality in regards to the influence of forests on runoff is more pronounced in the forest-tundra zone than in the zones of northern and middle taiga. Conclusion The study of this problem allowed us to analyze various aspects of the hydrological role of forests, and to show that forest ecosystems, depending on environmental conditions and the spatial distribution of forest cover, can transform water regimes in different ways. Despite the fact that the process of river runoff formation is controlled by many factors, such as temperature conditions, precipitation regime, geomorphology and the presence of permafrost, the models obtained allow us to reveal general trends in the dependence of the annual river runoff on the percentage of forest cover, at the level of catchments. The results obtained are consistent with the concept of geographic determinism, which explains the contradictions that exist in assessing the hydrological role of forests in various geographical and climatic conditions. The results of the study may serve as the basis for regulation of the forest cover of northern Eurasian river basins in order to obtain the desired hydrological effect depending on environmental and economic conditions.

The Water Code of the Russian Federation, the Federal Law «On the Protection of Lake Baikal», the scheme of ecological zoning of the Baikal Natural Territory determine the legal grounds for the allocation of the Water Protection Zone of Lake Baikal, but it was not installed until 2015. The project of the water protection zone of the lake was developed by the RAS SB V.B. Sochava Institute of Geography, taking into account the natural conditions of the coastal area of the water body. The landscape-hydrological concept of the spatial organization was taken as a scientific basis for the allocation of the water protection zone of Lake Baikal. The dimensions of the water protection zone must ensure maximum protection of Lake Baikal from the pollutants with surface and ground runoff from adjacent coastal areas due to natural processes of self-purification in landscapes and soil-soil layers. The coastal territories of residential, industrial and recreational development represent the most transformed and contaminated zones, and are subject to the establishment of special environmental protection regimes for economic activities.

The increasing implementation of the sustainable development principles in the construction sector leads to the emergence of new concepts of urban planning and development of territories that harmoniously takes into account the environmental, social and economic indicators of construction projects. A typical modern urban area is characterized by a large area of low-permeable surfaces, which negatively affects the urban ecosystem, and at peak loads of rain runoff or flooding poses a significant threat to human health and life. Pervious concrete is a special high porosity concrete used for flatwork applications that allows water from precipitation and other sources to pass through, thereby reducing the runoff from a site and recharging ground water levels. Pervious concrete is traditionally used in parking areas, areas with light traffic, pedestrian walkways, and greenhouses and contributes to sustainable construction. The review examines the properties and most promising applications of pervious concretes, various aspects of technical regulation, and outlines the prospects for the development of work in these areas.

ABSTRACT: Digestive disorders in cattle are associated with the breeding system and feed provided to the animals. Abomasal compaction is primarily related to the ingestion of forage with elevated levels of lignin, low quality, and difficult digestibility. In addition, the excess of fibrous food in the diet can lead to phytobezoars that may be responsible for intestinal obstruction disorders. This study aimed to describe pathological and clinical aspects of an outbreak of digestive disorders associated with the consumption of palm fiber (Elaeis guineensis). The outbreak struck a herd of 499 animals raised in a feedlot system after a change in diet that included an increase in the amount of palm fiber. Forty (8.01%) animals showed clinical signs such as fattening and regurgitation during rumination, and 21 (4.2%) animals died later. The cattle affected presented with apathy, emaciation, dehydration, distended abdomen, incomplete or absent ruminal movements, and congestive mucosa. Three animals were submitted to necropsy, and distended rumen and reticulum has a large amount of brownish liquid, long and tangled vegetable fibers with sand and stones. In two animals, the omasum had many rounded structures measuring approximately 5cm in diameter, made of vegetable fiber (phytobezoars). Abomasum of animals had similar material to the rumen, and one animal had compressed content. In two animals, dilatation was observed in the small intestine, and in the opening, the total obstruction of the lumen by phytobezoar was observed. During the follow-up of the slaughter of 76 cattle, 15 (19.7%) had phytobezoars of different sizes in the omasum and abomasum. The increased amount of oil palm fiber in animal feeding favored the occurrence of compression abomasum and intestinal obstruction phytobezoa, causing significant economic losses.

The paper considers the reasons for deepening current problems of the surface waters and control of surface wastewater quality in the cities of Europe and the world; the analysis of climatic and other natural factors affecting the assessment of the feasibility of rainwater management projects in a particular city (by the case of Kharkiv) is carried out; the results of the study on the pressure on water bodies brought by the surface waters within the urban landscape geo-system are provided; ecological assessment of the water body is made. The analysis of long-term statistical data and review of the current literature on the subject indicates that there is a trend towards the increase in precipitation in European cities with a moderate climate and in some cities with a tropical one. Over the last 10 years extreme erratic intensity of rainfall, both in terms of monthly precipitation in the warm half-year (May–October), and in the total monthly and seasonal number of rainy days has become typical for Kharkiv. Moreover, there is a change in the precipitation patterns – a decrease in the number of moderate rains and an increase of thunderstorms, showers and hail. Applying modern methods, the amount of surface water in the city is estimated, taking into account the percentage of the city’s territory densely covered with water. The quality of surface waters is determined by means of chemical analysis; the pressure on water bodies through unorganized surface run-off surface runoff from the urban territory is determined and assessed. The article presents an overview of successful urban projects of rainwater harvesting, its retention and practical usage, taking into account the sources of financing and offers measures and recommendations on implementing blue economy projects in the conditions of some particular city.

ABSTRACT In Brazil, urbanization-dominated imperviousness is prevalent, increasing the incidence and magnitude of floods. An alternative to control this impact is an on-site runoff detention reservoir. The choice of reservoir adopted should ideally combine hydraulic/hydrological and structural/economic criteria, although there is a gap in the literature regarding this type of integrated analysis. In this article, a cost-efficiency analysis is conducted to select a reservoir to control the runoff captured by a roof (4,657 m2) using the Puls method for hydraulic dimensioning and based on technical standards for the design of concrete structures. The results indicate that a decrease of approximately 3% in the theoretically ideal efficiency (100%) of the reservoir provided a 36% drop in cost. Such an alternative is more likely to become attractive and economically viable, with virtually the same benefits to the downstream stormwater drainage system. The analysis of different alternatives induced a decision between the level of control of the reservoir output and the cost that emphasized different aspects, focusing on more than the minimization of the cost or the imposition of a pre-defined control level in an arbitrary way.

Abstract. Karyati, Sarminah S, Karmini, Rujehan, Lestari VFE, Panorama WS. 2019. Silvicultural, hydro-orological and economic aspects of a combination of vegetative (Falcataria moluccana-Vigna cylindrica) and terrace systems in soils of different slopes. Biodiversitas 20: xxxx. Soil and water conservation techniques involving a combination of vegetative and mechanical systems will increase the benefits from both conservation aspect as well as economic aspect. This study was aimed at analyzing the silvicultural, hydro-orological and economic aspects of a combination of vegetative (Falcataria moluccana-Vigna cylindrica) and terrace system in soils of different slopes (a steep and a very steep slope gradient). The silvicultural parameters examined in this study were the ground coverage of V. cylindrica growth and survival rate, stem diameter and height of F. moluccana trees. The hydro-orological parameters included erosion rate, erosion hazard index, erosion hazard class, and erosion hazard level. The economic parameters included total cost, total revenue, and profit. The result showed that the survival rate, diameter increment and height increment of F. moluccana, and ground coverage of V. cylindrica in the land with the steep slope (>25-45%) was 90%, 2.02 cm year-1, 1.54 m year-1, and 80-90%, respectively. The erosion rate, erosion hazard index, erosion hazard class, and erosion hazard level in this steep slope was 0.38 ton ha year-1, 0.03 (low), I (very low), and very low, respectively. In the steeper ground (>45%), the survival rate of F. moluccana reached 90%, the V. cylindrica coverage was 70-79% and the diameter and height increment of F. moluccana was 1.63 cm year-1 and 1.19 m year-1, respectively. The erosion rate was 1.81 ton ha-1 year-1, erosion hazard index of 0.13 (low), erosion hazard class was I (very low), and erosion hazard level was low in the very steep slope land. The profit from V. cylindrica was Rp 3,865,000.00 ha-1 cropping season-1 and Rp 665,000.00 ha-1 cropping season-1 in steep slope and very steep slope, respectively. The application of the proposed combination of vegetative and terrace system could reduce surface runoff and erosion rate in the long term, in addition to providing short term economic benefits.

Over the recent years the Lake Baikal basin and the lake itself face the developing complicated water/economic situation due to the long-term low water period and inadequately substantiated limitations of the water level fluctuations. The Lake Baikal water resources are used for purposes of power production and water supply, therefore negative environmental phenomena are often associated with probable disturbances of natural hydrological regime. Existing approaches to the Lake Baikal water resources management and recommendations on intensification of its environment-protective aspects have been considered. Dates of the maximal and minimal level periods starting, the level fluctuations amplitude, the lake filling speed, and other parameters significant changing of those can affect the Baikal ecosystem status were used as a set of ecological indicators (limitations). The choice of the Baikal level regime control strategy has been done on the basis of analysis of water/economic ecological indicators-based calculations results. Results of calculations of the water resources availability for different water users and fulfilling of ecosystem requirements expressed as distribution of probabilities of respective indicators of the Lake Baikal level fluctuations are presented. Conclusions on the preference of one of the discussed schemes of the runoff regulation have been made.

Studies covering all aspects of bovine viral diarrhoea virus (BVDV) have been conducted in several countries in Europe, Asia and America. In southern Africa, more information is required about the nature of BVDV infection, the prevalence of different strains and the economic importance of the disease. The presence of BVDV in southern Africa has been known since the early 1970s through serological surveys but few reports confirming its presence by virus isolation and correlation with clinical disease are available. Specimens (n = 312) collected in 1998/99, from live and dead cattle from different farming systems, were obtained from private practitioners, feedlot consultants and abattoirs throughout the country. Specimens (n=37) from African buffaloes (Syncerus caffer) in the Kruger National Park were also included. All specimens were processed for virus isolation in cell culture with confirmation by means of immunofluorescent antibody tests and some also by means of an antigen capture ELISA. BVDV was isolated from 15 (4.7 %) cattle and were all noncytopathic biotypes. BVDV was not detected in 37 lymph nodes obtained from buffaloes in the Kruger National Park. Of the clinical signs in cattle from which virus were isolated, respiratory signs was the most frequent (10/15), followed by diarrhoea (5/15). Abortion, congenital malformations, haemorrhagic diarrhoea and poor growth were also included as criteria for selection of animals for specimen collection, but no BVD viruses were isolated from cattle manifesting these clinical signs.

Abstract Wastewater treatment plants (WWTPs) are among the most important infrastructures, especially in coastal cities with a risk of flooding. During intense floods, runoff volume may exceed the capacity of a WWTP causing plant failures. This paper investigates the impacts of flooding on combined sewer overflows (CSOs) in a WWTP in New York City. The impacts of CSOs after flooding are classified into four categories of health, economic, social, and environmental factors. Different factors are defined to evaluate the impacts of CSOs using multi-criteria decision-making of Preference Ranking Organization Method For Enrichment Evaluation and fuzzy technique for order performance by similarity to ideal solution. Since volume and depth were found to be the most significant factors for the CSO impact assessment, the Gridded Surface Subsurface Hydrologic Analysis model was run to compute flood depth and CSO volume under three treatment plant failure scenarios considering the Hurricane Sandy information. Sensitivity analysis revealed that the Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), and dissolved oxygen have the highest impacts on CSO. Uncertainty analysis was applied to investigate CSO impact variation. Results show that evaluating the impacts of CSOs in different aspects can help improve the efficiency of flood planning and management during storms.

In Siberia, floods are one of dangerous natural disaster. The danger of floods varies under the climatic and anthropogenic changes, as well as socio-economic development. The aim was to study the current position of problems associated with flood hazard. A key to understanding the flood situation is geographical and statistical analysis of the floods for the period of climate change (1985-2019). Such analyzes addresses the following aspects: study of flood genesis and recurrence, the severity of the impact for floods of different genesis; maxima runoff analysis as the principal cause of floods; analysis of the spatial distribution of settlements vulnerable to flooding; analysis of the ice jams and ice dams as a specific natural factor causing the floods in Siberia; assessment of the degree of danger, and identification of areas with the different integral flood danger. In Siberia, more than 1400 settlements are flooded at regular intervals. Most of them are concentrated in the southern, most developed territories in the Ob, Tom and Yeniseiy basins. In Siberia, rainfall, mixed (from snow melting with rainfall) and ice-dam floods are the most dangerous. They have the highest recurrence and severity of the impact. The greatest floods risk is in the most populated and economically developed southern regions within the Ob, Lena and Yenisey rivers and Lake Baikal basins. Territories with the highest risk of floods were determined. For the Baikal region, one of the most developed territories of Siberia, the flood hazard was determined for all administrative districts. Flood hazard maps for Siberian regions can be the basis for developing the flood adaptation strategies.

Aims: The impact of comprehensive interventions in erosion control, improving water availability, development of agro-forestry, sustainable management of natural resources, enhancement of agricultural productivity and socio-economic aspects of the farmers was studied. Assessment of effectiveness of watershed development programme, identification of major issues and lacunae in project implementation across the watersheds also has been studied. Study Design: Multistage stratified sampling technique was adopted in selection of study watersheds (secondary sampling unit-SSU), farmers (primary sampling units-PSU) and structures for detailed surveys. Place and Duration of the Study: The study was conducted in South Pennaiyar catchement in Dharmapuri, Salem, Villupuram, Vellore, Thiruvannamalai districts of Tamil Nadu. The study was conducted for three years period during 2012-14. Methodology: Sample based before and after project evaluation approach, employing budgeting techniques. By employing stratified random sampling method 15 study watersheds (SWS) were selected and the benchmark data collected by the project implementing agency (PIA) at the time of project planning were used for the study. All the collected data were analyzed through budgeting techniques or appropriate statistics. The cash flow table was developed which were further aggregated along with other miscellaneous costs of the project to generate total cost and benefit stream of the project. Results: The evaluation study reveals that runoff reduction of 8 to 10 percent and soil loss varies in the range of 1.1 to 1.9 t ha-1yr-1 after the project compare to 4.1 to 4.9 t ha-1yr-1 before the project shows the reduction of 3 t ha-1yr-1. Gully control structures made their impacts in terms of arresting silts at the rate of about 10.1 cum yr-1 in one watershed and stabilized the gullies. Increased water table in the range of 0.32 and 0.93 m with increased duration of water availability in wells for more than 9 months and increased recuperation rate (1.8 to 6.5 per cent) were observed. An additional surface storage capacity of 26.4 ha - m per watershed was created due to watershed interventions. The Net Present value of the project is about Rs. 52,238 lakhs without considering intangible benefits. The economic soundness of the project is also amply indicated by BCR (1.65:1) and IRR (53%) and the whole investment made in the project can be recovered within seven years. The NPV of the project further improved by inclusion of monetary value of the nutrient due to reduced soil erosion. The value of NPV was more than Rs. 63,968 Lakhs with 1.72 BCR and 65.5 % IRR. Conclusion: River valley project in South Pennaiyar catchment of Tamil Nadu is economically viable and recommended to be taken on priority for sustainable agricultural growth in the river / reservoir catchments.

Data desire flows through protest in the Anthropocene. Citizen science, participation in online discussion forums, documentary film production, protest selfies, glacier recession GPS photography, poster making, etc., are just some of the everyday data proliferation efforts comprising resistance to environmental degradation and destruction. These practices – visualisation, datafication, writing, sign making, archiving geological memory, etc., are, I want to argue, produced pleasurably, especially as modes of emerging as ‘subjects’ in relation to the chaos, chaotic affects, and unprecedented pace of destructive ecological events that these practices try to grasp or ‘make sense of.’ Pleasures of data production are hence closely correlated to emerging as a subject within the Anthropocene. Such pleasures function beyond individual emotion, and in relation to subjectification within chaotic events such as climate change. In this article I propose the concept data desire to map out how ‘data’ and ‘subjectivity’ co-emerge in relation to material forces and how people take pleasure in their subjectification through ‘knowing,’ datafying, and creating ‘meaning’ out of material events which are chaotic or have chaotic affects (Guattari). I take up contrasting terms of ‘pleasure’ and ‘desire’, drawing on the thought of Gilles Deleuze ("Desire"; Essays), for whom pleasure is associated with a craving of individuation in light of chaos while desire speaks to the unlimited postponement of events from being summarised. One such event, and the event I focus on in this article, is oil. Here, I think of the event, not as ‘a moment’ or a ‘happening,’ but as that which has many iterations, instances, and bifurcations, and is often distributed in space and time (Deleuze, The Fold). I draw on my fieldwork in media practices of people taking part in the oil pipeline protests in British Columbia, Canada. I give examples of three data practices, and articulate the relation between media production, generation of ‘data’ and the production of subjectivity within the Anthropocene. These practices include data generation through participation in online news’ comment forums, data created as part of citizen science, and resistance ‘selfies’ or producing oneself as data to be circulated on social media. My analysis diverts from any interest in the representational function of media, towards how pleasures of data practices and the circulation of desire that these are a part of emerge, for many people, as the only ways of becoming subjectified in catastrophic environmental events.Pleasure and desire may not be the most obvious terms to think of when one thinks of resistance, particularly against environmental degradation. While pleasure has been an important aspect of activism, social movements, and feminist politics (e.g. Goodwin, Jasper, and Polletta; Sharpe), it has only recently been engaged with in relation to environmental activism, particularly by Craig, and Alaimo. Alaimo defines pleasure as an important aspects of material engagements and more-than-human ontologies marked by connection and kinship characterised by delight. Craig also calls for the recognition that pleasure is central to the everyday lived resistance found in environmental movements such as the slow food movement and urban farming that are anti-consumerist in orientation. These examples mark pleasure as part of the politics of resistance where the emotion emerges from the belief in a harmonious and symbiotic relationship to ‘nature’ and non-human matter through human emotion. Pleasure however, as I intend to show, can also be thought of beyond the individuating ‘emotion’ and as part of larger flows of desire, where ‘desire’ is conceptualised as vitality and ‘ongoing production’ (Deleuze & Guattari, Anti-Oedipus). Particularly, my focus on pleasure intends to problematise how pleasure through data production emerges perhaps as a mode of ongoing ‘coping’ of ‘navigating’ or of simply ‘trying to be a part of’ or attain some sensation of ‘agency’ amongst ecological catastrophes when being political are deemed to be ineffective or even futile.Data and Desiring-ProductionI propose ‘data desire’ as a concept for thinking about the ongoing social production of subjectivity through data production in the context of the failure of representation in the Anthropocene. Gilles Deleuze ("Desire") argued that pleasure is an individualised emotion related to failures of representation: “pleasure seems to me to be the only means for a person or a subject to ‘find themselves again’ in a process which overwhelms them” ("Desire", n.p.). Such an emotion is one of the outputs of a flow of desire that is non-individual, and not only human.Desiring production “causes the current to flow” (Deleuze and Guattari, A Thousand Plateaus, 5) between the event of oil and the production of subjectivity, both which propagate and bifurcate, and are continuously produced anew. Desire is characterised by vitality, or the unceasing capacity of processes to continuously become difference, to continuously change, rather than ‘arrive’, ‘conclude’, or ‘be.’ In other words, to think with ‘desire’ is to note how production flows, like a current, through ‘overwhelming’ events that including oil, and through subjectification, both of which continuously emerge in new contortions and produce new affects. The pleasure that emerges through a subject being produced, or a subject ‘coming into being’ by way of producing data – summarising, visualising, representing, and trying to give ‘meaning’ to ‘the event’ – is affected by the ongoing ability of ‘the event’ to multiply and be postponed from being summarised, as it proliferates and reproduces itself in ever new human and non-human bifurcations – oil spills and leaks, protests, policies, bitumen, new movements, new rhetoric, new sanctions, new pipelines, etc.Malins for instance notes how desireis not that which a pre-existing subject has for something, nor is it motivated by individual lack or the pursuit of pleasure. It is instead best understood as a pre-subjective, pre-conscious life force or energy that flows between bodies, connecting, animating and transforming them. (2)Data desire is therefore most importantly not a feeling that emerges out of a lack of data, or a desire for data. Rather data desires suggests that data practices become modalities through which people involved in environmental resistance can continuously ‘sense’ themselves as part of the event, or gain the sensation that they ‘are’ political, even if only as a sensation and only if momentarily, and within catastrophic events that are also always changing and defy representation. Events such as oil hence require analysis of the entanglement or multiple ways in which processes of subjectification, ecology, and media practices are in themselves multiple and folded together in multiple ways, something Guattari called the three ecologies, and more recently, Murphie referred to as a catastrophic multiplicity. This orientation towards desire as production positions the analysis of the pleasure of data practices beyond that of an individual into the realm of social production.Data Desire Fieldwork in the Oil-EventMy fieldwork focussed on the data practices of residents living in oil pipeline conflicts in British Columbia. This research included examining the media practices and everyday data engagements of residents engaging with and concerned about two oil pipeline projects: Enbridge’s Northern Gateway Pipeline, which would move crude oil from Edmonton and terminate in Kitimat in Northern British Columbia, and Kinder Morgan’s Trans Mountain oil pipeline that also would move crude oil from the Alberta tar sands to Burnaby, British Columbia. This later pipeline already exists, although the proposed project aimed at twinning of the oil pipeline would substantially increase oil tanker traffic along the West Coast and generate new risk of oil spills, given its increased capacity. As part of my research I spoke with a total of twenty-four (24) residents, and six (6) environmental non-governmental organisations (ENGOs) in Northern British Columbia and the Vancouver Metro Area to examine their media practices, digital strategies and other, everyday data practices in the oil pipeline conflict.Against the backdrop of an uptake in big data’s relation to ecological transformation (e.g.: Ruiz; Hogan; Maddalena & Russill), I found the displays of pleasure accompanying individuals’ ostensibly everyday ‘small data’ productions as enunciations of subjectivity and resistance in the oil pipeline movement, under-examined and intriguing. Oil pipeline resistance can be charted along affective lines of pleasure associated with data practices, as people living in oil pipeline conflicts find themselves amidst an ever-expanding flurry of directions and affects that oil takes on: #NoDAPL, the Kalamazoo oil spill, the Conservative party leadership, Indigenous law suit claims, hypocrisy rhetoric, oil pipeline decisions approved, challenged, and deferred at municipal and federal levels. Oil is hence not only a substance but an event that continues to swirl off in new directions, and encompasses and also connects with a multitude of other events, such as urbanisation, 300,000 airplanes taking off and landing on a daily basis, peak oil, and animal extinction. I therefore consider ‘events’ not as ‘happenings’ or singular image events (DeLuca; DeLuca & Peeples; McHendry; Yang) in the way they are often conceptualised within environmental communication literature, but as something that is ongoing, and often extensive beyond a single time and space. Image events may be one of the expressions of a broader and larger (conceptualised as having multiple expressions) event taking place. This section provides three examples of pleasures of emerging as subjects through data practices as political resistance to oil. These include contributing to discussions in online forums, engaging in citizen science, and proliferation of photos of authentic ‘non/environmentalists’ faces on social media.The first example of subjects emerging through practices of data desire is the production of online data, especially in online political forums or online news comments sections. Here, we might envision the pleasure of data production, in the form of writing online comments, as correlating to the individual wish to ‘count’, particularly as ‘individuals’ are seen to be peripheral to geological forces and capitalist machines of oil production, as well as to the processes of decision making, lawsuits, and municipal and regional politics. One example from this study demonstrates how residents living in oil pipeline conflict areas take pleasure in consuming and producing data. The excerpt below comes from a conversation I had with a resident living in and resisting the Trans Mountain oil pipeline expansion in the Vancouver Metro Area. This resident, an avid canoer and computer programmer in his thirties, showed immense pleasure in generating data in the form of contributing to news comments sections. Below I treat the participant’s talk not as an ‘account’ in the positivist sense in which ‘interview data’ might be taken to represent ‘participants’ voices.’ Rather, I treat such expression as a flow of desire that flows through individuals, often constituting them as subjects.I love discussing these issues. I love identifying what is not necessarily of paramount concern as opposed to what is. I have a lot of conversations. I have friends involved in policy. And I read. I’ve got news alerts coming my way from—you know, I must have about twelve Google alerts coming up just regarding pipeline issues and environmental issues. It’s become such a passion for me that I almost was sad once I felt it was finally defeated. I would get up in the morning and hop on the computer to read the latest articles and, you know, respond to comments and stuff. Often what I’m more interested in than the news article is the comments because it tells me where the Overton window is at any given time. I mentioned that some people attend rallies and stuff, well I post to the comments sections and I have conversations all the time online.As seen in this excerpt, pleasure/the subject emerge simultaneously through projects of comprehension and expression. The excerpt shows how contributions to conversations are ‘productive’ not in terms of any kind of political outcome, but in terms of a sensation of emerging/becoming subjectified in the event. Pleasure manifests within projects related to constituting subjectivity by not only consuming data, but also contributing to its ongoing production. In other words, this resident living in an oil conflict area found pleasure in calculating the Overton Window of online news comments about the oil pipeline, as well as in being constituted within the event as a political ‘subject’ by producing ‘data’. His becoming ‘subject’ was concurrent to a sensation of being able to ‘summarise’ the event and its articulations under ‘a unity’ and giving some ‘meaning’ to the constantly shifting event of ‘oil’. While both ‘the subject’ and ‘oil’ keep being produced anew, the momentary emotion of ‘pleasure’ functions to give a sensation of albeit temporary coherence. Here, as Deleuze and Guattari (A Thousand Plateaus) argue pleasure is “an affection of a person or a subject, a way for people to ‘find themselves’ in the process of desire that exceeds them” (156). This ‘excess’ characterises the evasiveness of ecological events and objects from being ever truly graspable, comprehensible, represented, or even ‘known’ to humans. de Freitas for instance notes how matter is already mathematically monstrous, quite literally multiplying, and evasive in its capacity to be ‘calculated’ (3). Input through online comments are therefore attempts at contribution to calculations, ‘making sense’, and also to feeling ‘counted’, attempts which in themselves amount to a great pleasure.The second example of subjects emerging through practices of data desire involves citizen science as a mode of data generation. Practices such as citizen science became pleasurable activities of subjective enunciations – practices of a ‘subject’ coming into being against, or within, this chaos, through data generation. Citizen science is a prime example of residents living in oil pipeline conflicts becoming enunciated – pleasurably – as subjects in the oil pipeline conflict in BC. Citizen science, for example, can take many forms. Streamkeeping, the act of taking care of local streams, is a key form of citizen science in areas facing oil pipeline conflicts, particularly as it puts data practices front and centre as part of resistance. While streamkeeping has many aspects to it, including stream clean-ups, a key component is the production of data about ecosystems health, which including wading into water to count fish, measure construction runoff such as silt, gravel, and sediment, and create comparative archives. Measuring, noting salmon counts, documenting debris emerged as pleasurable ways of engaging in pipeline politics–emerging as a subject, by way of somehow trying to datafy the oil-event, by making it ‘meaningful.’Data production functions to mathematically calculate a course of action within a concoction of persuasive efforts of oil pipeline corporations, environmental non-governmental organisations, governments, activist, and neighbours to define what ‘political subjectification’ might look like. Science is in perpetual struggle against chaos (Deleuze and Guattari, What Is Philosophy?) and data generation through grass-roots citizen science becomes a tool, or an instillation of data about a changing biome through which to encounter oil, and through which to emerge as a subject in relation to oil. Production of data as part of ‘citizen science’ also functions as a way through which to assert ‘independence’ and stage some resistance within a multiplicity of other ways in which oil becomes a reason of various attempts to define ‘political subjectivity’, such as ENGO campaigns, government statements about the ‘right’ and ‘wrong’ process to show resistance to the oil pipelines, and the branding of environmentalists as ecoterrorists. Perhaps data production becomes a way to effectively fold oneself into the oil event, without needing to confront a lack of other ways one could, or might resist oil pipeline development.The third example of the circulation of data desire are the increasingly common expressions of individuated pleasures associated with showing ‘faces’ of people engaged in environmentalist issues like oil pipelines, on various social media feeds that try to portray ‘real’ political subjects, in contrast to stereotypical representations of ‘activists’ or ‘environmentalists.’ Here I am specifically talking about selfies taken at environmental protests. Such productions of images of ‘authentic’ political subjects within oil movements has been a popular way to demonstrate authenticity of resistance efforts within environmental movements, particularly in relation to a struggle against accusations of hypocrisy fed by oil pipeline corporations and pundits (Piotrowski). Given the numerous social media feeds of environmental anti-oil pipeline groups that attempt to show ‘faces’ of ‘real’ political subjects, these depictions attempt to produce subjectivities, particularly with the intensifying circulation of what might be thought of as “faciality enactments” (Piotrowski, 849). Here, ‘faces’ are generated as ‘data’. The continuous production of faces/data becomes what counts, or matters, within resistance, as a way of continuously reproducing environmentalist subjectivity, particularly at a point of ‘crisis’ of environmentalist group identity. Such micro-productions and pleasures of individual faces on social media feeds or Instagram posts, are part of flows of data desire: the desire of individuals to emerge as subjects within a multitude of stereotypes about environmentalism; the desire for environmentalism to assert itself as meaningful within ecological events such as ‘oil’, and the desire of corporations to assert different rhetorics about both oil and environmentalism itself.To close, I have articulated that a subject – a subject that takes part in ‘their’ resistance to ecological degradation – is a residual one, the product of a circulating flow of pre-personal data desire. This data desire exceeds individual pleasures and undulates between the chaotic event of oil, its continuously shifting political, economic, and social affects, and ‘a subject’ also continuously trying to be enunciated and ‘individuated’ in the event. Satisfaction, or pleasure, becomes the individual expression of a larger circuit of circulating desires which shows the flows of data between the expressions of material and ecological events which generate all sorts of breakdowns in meaning about ‘the human’ and the Anthropocene, and between breakdowns of activist’ subjectivity. Desire functions as a mode of inquiry that moves thinking about pleasure beyond individuals’ emotions of ‘their’ craving for individuation and meaning within the chaos of the Anthropocene and in the anti-oil pipeline resistance. Rather than see data production as a response to a lack of information, I have shown how data desire, as a concept, can help to think about ontological production, or the production of subjects. This ontological production refers both to the event’s capacity to become continuously different and unforeseen, and the subject’s ongoing self-production through data practices. Three examples discussed here – participation in online news comments sections, citizen science, and production of activism selfies are just but some of the media practices that are part of the circulation of data desire, though there are undoubtedly more.ReferencesAlaimo, Stacy. Exposed: Environmental Politics and Pleasures in Posthuman Times. Minneapolis: U of Minnesota P, 2016.Craig, Geoffrey. “Political Participation and Pleasure in Green Lifestyle Journalism.” Environmental Communication 10.1 (2016): 122–141.Deleuze, Gilles. The Fold: Leibniz and the Baroque. New York, NY: Continuum, 1993.———. Essays Critical and Clinical. Minneapolis, MN. 1997.———. “Desire & Pleasure.” Trans. M. McMahon. Unpaginated. 1997. 1 Aug. 2018 <http://www. artdes.monash.edu.au/globe/delfou.html>. Originally published as "Désir et Plaisir" in Magazine Littéraire 325 (Oct. 1994): 59–65.———, and Felix Guattari. Anti-Oedipus: Capitalism and Schizophrenia. Trans. R. Hurley, M. Seem, and H.R. Lane. 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