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1
Lupien, John. "Acacia gum and sustainable development in Africa." African Journal of Food, Agriculture, Nutrition and Development 7, no. 5 (September 19, 2007): 1. http://dx.doi.org/10.18697/ajfand.16.cy005.
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Africa has vast agricultural and other natural resources. Many of these resources have been exploited so that the resource is destroyed, rather than maintained in a sustainable way. With regard to agriculture and arable land, a particular problem is that of desertification, caused by spreading of desert areas into lands that have been damaged by over-grazing of animals,over-usage of water resources resulting in drought conditions, destruction of forest and tree coverage for cooking fuel, cropping of plants that cause soil erosion and depletion of soil minerals, and other undesirable abuses of land. Many thousands of hectares of previously arable land are lost to spreading deserts in all parts of Africa. The Sahel area, immediately south of the Sahara desert is the most affected area.
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Fan, Xiao Lu, Ming Zhong Tian, and Si Wen Liu. "Aeolian Geomorphology Resources and Projects Development Suggestion in the Badain Jaran Desert." Advanced Materials Research 838-841 (November 2013): 1324–30. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.1324.
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Badain Jaran Desert is the third largest desert of China. The research on aeolian geomorphology resources will be beneficial to the sustainable development of tourist industry and environment in the Badain Jaran Desert. This paper uses these basic geographical data, such as ETM+, 1:50,000 topographic map, GDEM, Google Earth data and so on. Then we integrate geological surveys in the field and summarize the characteristics of aeolian geomorphology resources. By combining with tourism projects of aeolian geomorphology resources set in other scenic area, the tourism development projects of aeolian geomorphology resources and desert environment in the study are put forward with the purpose of offering practical advice for tourism development of aeolian geomorphology resources and the control and utilization of desert environment in the Badain Jaran Desert.
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Yanjun, Ji, Liu Chuang, and Ding Zhichao. "Research and Analysis on Present Situation of Desert Sand Concrete." E3S Web of Conferences 271 (2021): 02004. http://dx.doi.org/10.1051/e3sconf/202127102004.
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Due to the rapid development of civil engineering industry, natural medium and coarse sand resources are increasingly scarce. If desert sand is studied and applied in the field of civil engineering, the shortage of sand resources and high unit price can be greatly solved.Therefore, it is very important to study desert sand instead of ordinary sand. Although the application of desert sand in engineering has made rapid development, many engineers and researchers have done a lot of experiments and in-depth research on the physical and chemical properties, mechanical properties and compaction characteristics of desert sand, and also made a lot of experimental research results. However, at present, because of the different engineering properties, different deserts are used and the test methods are different. Generally speaking, the understanding of this special material with engineering properties is not mature at home and abroad, and it is not widely used in civil engineering.
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Wu, Jiawei, Jinyu Xiao, Jinming Hou, and Xunyan Lyu. "Development Potential Assessment for Wind and Photovoltaic Power Energy Resources in the Main Desert–Gobi–Wilderness Areas of China." Energies 16, no. 12 (June 7, 2023): 4559. http://dx.doi.org/10.3390/en16124559.
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The large-scale centralized development of wind and PV power resources is the key to China’s dual carbon targets and clean energy transition. The vast desert–Gobi–wilderness areas in northern and western China will be the best choice for renewable energy development under multiple considerations of resources endowment, land use constraints, technical conditions, and economic level. It is urgent to carry out a quantitative wind and PV resource assessment study in desert–Gobi–wilderness areas. This paper proposed a multi-dimensional assessment method considering the influence of the power grid and transportation infrastructure distributions, which includes three research levels, namely, the technical installed capacity, the development potential, and the development cost. Nine main desert–Gobi–wilderness areas were assessed. The wind and PV technical installed capacities were 0.6 TW and 10.7 TW, and the total development potentials were over 0.12 TW and 1.2 TW, with the full load hours of 2513 and 1759 and the average development costs of 0.28 CNY/kWh and 0.20 CNY/kWh. Finally, this paper proposed the meteorological–electrical division distribution. A case study in the Kubuqi and Qaidam Deserts was carried out on wind–wind and wind–PV collaborative development across different meteorological–electrical divisions, which can reduce by 58% the long-term energy storage capacity and decrease the total system LCOE from 0.488 CNY/kWh to 0.445 CNY/kWh.
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Yang, Liang. "The Tourism Development Study of Desert, Wetland and Oasis Composite Resources — Taking an Example of Na Lin Tao Hai Farm." Advanced Materials Research 1010-1012 (August 2014): 1871–74. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.1871.
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Wetland is the precious wealth of human beings .The positive value of the desert began to gain social acceptance, and gradually become a new experience and spa tourism resources. Society needs an effective and systematic tourism development model .Through the field investigation and grade evaluation method, the Na Lin Tao Hai farm local in Inner Mongolia has a unique desert, wetland and oasis composite resources that belongs to the secondary tourism resources .The tourism development of Na Lin Tao Hai farm need to get rid of the traditional wetland and desert development mode, make full use of the special value of the composite resources. Planners should discover farming culture, nomadic culture and water culture, and build a unique tourism development path that natural ecology, culture and social form a harmonious unified system.
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Guirgis, R. A. "EGYPTIAN SHEEP RESOURCES." Animal Genetic Resources Information 13 (April 1994): 47–58. http://dx.doi.org/10.1017/s1014233900000274.
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SUMMARYLocal Egyptian breeds of sheep, though considered small to medium size, have the desirable qualities of continuous breeding throughout the year and hardiness. Increasing the flock owners income may be through:1. Higher productivityby accelerated lamb production of the valley and delta Ossimi and Rahmani breeds and improving the natural resource situation for the adapted desert Barki breed.2. Establishing a simple grading system for the local coarse wool to improve marketing and encourage its use in small scale industries, hence rural development of the area.
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Da Silva Santiago, Wallace. "Research and development of planting techniques with low water resources in desert and semi-desert areas." Revista Scientific 8, no. 29 (August 5, 2023): 144–59. http://dx.doi.org/10.29394/scientific.issn.2542-2987.2023.8.29.7.144-159.
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This research addresses the problem of the worldwide decrease in water resources due to climate change and desertification. The main objective is to develop a cultivation method that uses a biogel to optimize water absorption by plants and reduce evaporation in desert areas. A mixed methodology was employed, combining qualitative and quantitative elements. Black bean seeds (Phaseolus vulgaris) were sown in bags with substrate prepared with the biogel, administering 20 ml of water every 3 days. Over 37 days, observations were made of plant development, substrate moisture, and the presence of pests or diseases. The results showed efficient water absorption by the plants and a substrate that remained moist, without the presence of pests or diseases. However, additional laboratory analyses are required to determine the exact cause of plant death before 45 days. It is concluded that the biogel cultivation method has potential for efficient water use in desert areas, but greater investment in equipment and a multidisciplinary team is needed to obtain conclusive results.
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Sheridan, Thomas E. "Arizona: The Political Ecology of a Desert State." Journal of Political Ecology 2, no. 1 (December 1, 1995): 39. http://dx.doi.org/10.2458/v2i1.20130.
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In this paper, I argue that the emerging research strategy of political ecology needs to incorporate an active nature into its analysis of the commodification of natural resources and the politics of resource control. I make reference to earlier work among small rancher-farmers in Cucurpe, Sonora, where the nature of the crucial resources themselves--arable land, grazing land, and irrigation water--determined local agrarian politics as much or more as transnational market demand and Mexican federal agrarian policies. Then I examine water control in Arizona during the past century. I contend that one of the best ways to pursue political ecology is to focus upon the historical dialectic that determines how and why certain natural resources are converted into commodities at particular places and times and how commodity production transforms, and is transformed by, local ecosystems and local societies. Finally, I concur with anthropologist Thomas McGuire that this analysis must be resolutely empirical rather than based upon a priori models or assumptions.
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جودت, ندى شاكر, سعدية عاكَول منخي, and فلاح حسن شنون. "Water harvesting and its impact on the development of water resources in Iraq." Kufa Journal of Arts 1, no. 29 (December 20, 2016): 115–52. http://dx.doi.org/10.36317/kaj/2016/v1.i29.6092.
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Water harvesting technology in Iraq is of great importance because of its role in the development of water and agricultural resources in it and the provision of water for various uses, due to what Iraq suffers from semi-arid climatic conditions and the lack of rainfall and the fluctuation of its fall between the years as well as the high temperatures that lead to higher operations Evaporation, bearing in mind that about half of the area of Iraq consists of desert lands that suffer from water scarcity. Water harvesting technology has been applied in Iraq by various means, the most common of which is the construction of dams and reservoirs on rivers and valleys in various parts of Iraq, especially in desert areas. Water harvesting technology in Iraq faces some obstacles and problems, including natural obstacles, regulatory and administrative obstacles, and financing obstacles.
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Yan, Hui. "Research on Relative Carrying Capacity of Resources of Inner Mongolia." Advanced Materials Research 726-731 (August 2013): 4801–4. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.4801.
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The relative carrying capacity of resources methods was used to calculate the relative carrying capacity of land resources, the relative carrying capacity of economic resources and carrying capacity of integrated resource of Inner Mongolia during 1978-2008. Study shows that: carrying capacity of integrated resource of Inner Mongolia is surplus, overloading population between-15.22 to-32.38 million, land resources is the main capacity resources of Inner Mongolia during the last 30 years. The main causes for the sustainable development status in Inner Mongolia is the wide land and small population, but considering lots of land in Inner mongolia can not be cultured, such as desert and gobi, and that economic foundation of Inner Mongolia is still weak, so Inner Mongolia should speed up economic development, enhance the carrying capacity of economic resources.
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Medjdoub, Khayra, and Mostapha Tawiti. "Sustainable Desert Tourism as a Way to Promote Internal Tourism in Algeria Study of The Experiences of Some Arab Countries." Finance and Business Economies Review 3, no. 3 (October 31, 2019): 554–67. http://dx.doi.org/10.58205/fber.v3i3.1070.
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This study address the issue of sustainable tourism development desert by highlighting the elements ofattraction of desert tourism in the Arab world in general and the Arab Maghreb in particular, to submit aproposal on how to optimize the use and successful recruitment of natural resources while creating theright climate to attract investment in the context of achieving ecological balance integrated between thevocabulary of the desert environment and the needs of tourism development to give the perception of aninsurance mechanism for the ecosystem, and display as well as the experiences of some countries of theMaghreb (Algeria, Tunisia and Mauritania) in the field of sustainable desert tourism.
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Myradowich, Penjiyev Ahmet. "Technical and Economic Assessment of the Use of an Autonomous Photoelectric Water Lift Installation in the Karakum Desert." Journal of Solar Energy Research Updates 10 (May 7, 2023): 1–7. http://dx.doi.org/10.31875/2410-2199.2023.10.01.
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Abstract: One of the urgent problems of Turkmenistan is the development of desert territories, which occupies 80%. The task of scientific research is to analyze the problems of energy supply and water supply for the development of the desert and the desertification of this territory. One of the priority energy supply is the use of renewable energy sources, water supply, the use of groundwater. The article considers the eco-energy resources and potentials of solar energy for lifting water from the depths, using technical and economic methods to evaluate capital investments, investment costs and energy efficiency of solar photovoltaic water lifting stations in the Karakum Desert. The given methodology for technical and economic calculations, capital investments, investment costs and evaluation of the effectiveness of operational parameters for use in transhumance will be useful in the preparation of a feasibility study (feasibility study). On the basis of solar - energy resources, calculate, draw up an energy map of the rise of water from the depth of occurrence and evaluate the technical and economic indicators for the development of the Karakum desert and the development of transhumance.
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Gatterer, Karl, and Salah Arafa. "Renewable Energy Resources for Better Economics and Sustainable Living in Rural and Desert Areas." Journal of Business and Economics 10, no. 12 (December 22, 2019): 1165–71. http://dx.doi.org/10.15341/jbe(2155-7950)/12.10.2019/004.
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Reliable and affordable energy is the key for the socio-economic development in rural and desert communities worldwide. While energy can be used for consumption purposes such as Lighting, Access to Information, Comfort and Entertainment, productive use of renewable energy is the key enabler for SMEs and Economy to grow. The paper examines the complex interactions among Energy, Materials, Water, Food, Building, Employment and Environment. It also discusses the implementation of renewable energy technologies to overcome some of barriers faced by rural villages and desert communities. It shows some of the special applications and approaches used over the past few decades in energy conversion, consumption and conservation to achieve poverty reduction, social justice and sustainable development. Field experiences in Basaisa projects, Egypt showed that open free dialogues with all stakeholders, site-specific education and training, appropriate local financing systems and access to knowledge are key-elements and essential factors for achieving green economy and sustainable community development. The coming decade will see a continued expansion of knowledge about renewable energy resources and its useful applications as systems friendly to the environment and as tools for economic activities, sustainable living and growth in rural and desert communities.
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Guo, Zhongsheng. "Soil Hydrology Process and Rational Use of Soil Water in Desert Regions." Water 13, no. 17 (August 29, 2021): 2377. http://dx.doi.org/10.3390/w13172377.
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There is a balanced plant–water relationship in the original vegetation in the desert area. With the increase in the population and social development of the desert area, people need the goods and services of the forest vegetation ecosystem. To meet the growing demand for plant community goods and services, more original vegetation has been changed into non-native vegetation, such as in the Loess Plateau in China. However, with the plant growth, sometime soil drying happens and becomes gradually serious with time in most desert regions. Serious drying of soil eventually results in soil quality degradation, vegetation decline, and crop failure, which influence the produce and supply of forest vegetation goods and services in the market in dry years or waste of soil water resources in wet years, which wastes precious natural resources. In order to use soil water rationally, soil water must be used in a sustainable way and the plant–water relationship has to be regulated for the Soil Water carrying capacity for vegetation in the key period of plant–water relationship regulation to carry out a sustainable use of natural resources, high-quality sustainable development of forest and grass, and high-quality production of fruit and crops in desert regions.
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Asnawi, S., M. Dimyati, and R. Yusuf. "Education Deserts Mapping of Public Middle Schools in Bogor City: A Step Towards Educational Equity." IOP Conference Series: Earth and Environmental Science 1353, no. 1 (May 1, 2024): 012037. http://dx.doi.org/10.1088/1755-1315/1353/1/012037.
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Abstract Limited access to educational resources, stemming from geographical remoteness and transportation challenges, creates education deserts that impede equitable access to quality education. Recognizing these education deserts is crucial for pinpointing areas where students may face academic setbacks and for crafting specific strategies to enhance educational accessibility. This research employs bivariate choropleth maps to delineate education deserts in public middle schools in Bogor City, Indonesia, integrating data on school accessibility and student demographics. The maps highlight education desert areas in the darkest shade, revealing the top five areas characterized by low school accessibility and high student demographics. The insights derived from mapping education deserts in Bogor City contribute to the development of targeted strategies, ensuring that all students, irrespective of their location or socioeconomic background, enjoy unimpeded access to high-quality education, thereby advancing educational equity.
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Abou Rayan, Magdy. "The use of Nontraditional Energy, Water Resources for the Development of Western Desert." International Conference on Electrical Engineering 9, no. 9th (May 1, 2014): 1. http://dx.doi.org/10.21608/iceeng.2014.30558.
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Mosaad, Sayed. "Geomorphologic and geologic overview for water resources development: Kharit basin, Eastern Desert, Egypt." Journal of African Earth Sciences 134 (October 2017): 56–72. http://dx.doi.org/10.1016/j.jafrearsci.2017.06.008.
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Wang, Zhimin, Guomin Li, Xue Li, Shuo Shan, Jiangyi Zhang, Shengyu Li, and Jinglong Fan. "Characteristics of moisture and salinity of soil in Taklimakan Desert, China." Water Science and Technology 66, no. 6 (September 1, 2012): 1162–70. http://dx.doi.org/10.2166/wst.2012.270.
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The Taklimakan desert is known as the largest dunefield in China and also as the world's second largest shifting sand desert. The Tarim Desert Highway, which is the first highway to cross the Taklimakan desert, was built for the purpose of oil and gas resources extraction in the Tarim area, as well as for the development of the southern area of the Xinjiang Uygur Autonomous Region. Shelterbelts have been planted along the highway to prevent shifting sand from burying the road. This paper analyzes the variations of moisture and salinity of the unirrigated desert soil under natural conditions in the center of Taklimakan Desert. A number of important findings indicating the moisture and salinity of the soil at capillary saturation zone were determined by the groundwater and related to the evaporation on the top. Salinity could be affected by vegetation, which was different from moisture in the soil. Meanwhile, clay layer played an important role in water preservation in the soil, which was also beneficial to the accumulation of salinity in soil. Compared with clay layer, vegetation was a decisive factor for the gathering of salinity. The findings were significant for reasonable adjustment of irrigation in the shelterbelts for the further development of the Tarim Desert Highway.
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Sharma, Lipika, Sher Samant, and Ashish Kumar. "Fodder Resources of Cold Desert Biosphere Reserve in Trans Himalaya." Journal of Non Timber Forest Products 24, no. 2 (June 1, 2017): 79–92. http://dx.doi.org/10.54207/bsmps2000-2017-h79ikj.
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Livestock is one of the major sources of livelihood and vital part of the agriculture and economy for the inhabitants of Cold Desert Biosphere Reserve (CDBR) in the Indian Himalayan Region (IHR). The tribal communities are dependent on plant resources for fodder to feed the livestock. The review of literature revealed that focused studies on fodder resources of the CDBR have not been carried out so far. Therefore, the present study attempts to specify 270 species of fodder representing trees (03 spp.), shrubs (24 spp.) and herbs (243 spp.). Poaceae (105 spp.) and Polygonaceae (34 spp.) were dominant families and Poa (18 spp.), Carex and Polygonum (11 spp., each), and Festuca (10 spp.) were species rich genera. Maximum species were found in the 3000 ~ 4000 m zone. Most collected fodder species from wild includes Trigonella emodii, Cicer microphyllum, Aconogonum tortuosum, Clematis ladakhiana, Cousinea thomsonii, Carex infuscata, Festuca rubra, Leymus secalinus, etc. Only 88 species were native to the Himalayan Region, 11 species were endemic and 37 species were near endemic. Ecological assessment of the fodder species using quadrate method, and rotational grazing of livestock by tribal communities and Gaddis; and development of management plan and policy briefs are suggested.
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Messerli, Bruno, Martin Grosjean, and Mathias Vuille. "Water Availability, Protected Areas, and Natural Resources in the Andean Desert Altiplano." Mountain Research and Development 17, no. 3 (August 1997): 229. http://dx.doi.org/10.2307/3673850.
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Qi, Zhao, Lei Xi, Mengchun Cui, Lili Wang, Yiming Feng, and Xiaoming Cao. "Optimization of Forest and Grass Vegetation Distribution in the Aksu River Basin by Water Resources Carrying Capacity." Water 16, no. 3 (January 24, 2024): 389. http://dx.doi.org/10.3390/w16030389.
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In arid areas, vegetation is the basis for maintaining the virtuous cycle of ecosystems, while water resources are the key factor restricting the survival of vegetation communities. The balance between water resources and vegetation is related to the sustainable development of ecological benefits and economic benefits in arid areas. Although research on the carrying potential of vegetation in arid areas has been emphasized, there is still a lack of spatial analysis of different vegetation types over large areas. Therefore, this study takes precipitation as the basic source of water resources, calculates the amount of available water resources in the basin from the available effective precipitation and available irrigation water, and it analyzes the spatial distribution of forest and grass vegetation types under the water resources constraint, combined with the ecological water demand of different vegetation types and based on the principle of “Water to determine the Vegetation”. The results showed that the ecological water demand of each vegetation type was as follows: Forest > Shrub Vegetation > Grassland Vegetation > Desert Vegetation. The range of comprehensive available water resources of vegetation was from 0 to 221.71 mm, which decreased with the altitude gradient. Then, the spatial distribution pattern of vegetation types constrained by the water resources in the Aksu River Basin showed a striped distribution from north to south, with shrub vegetation in the high-altitude mountainous area, grassland vegetation in the low-altitude area, and desert vegetation in the desert plain area, respectively, accounting for 29.05%, 10.74%, and 53.45% of the total basin. This research approach provides a scientific basis for the planning of forest and grass vegetation construction in arid regions.
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Yan, Haitian, Honglin Liu, Guodong Li, Xiangyu Wang, and Yinjian Hang. "Numerical Investigation on the Compressive Behavior of Desert Sand-Based Backfill Material: Parametric Study." Materials 16, no. 10 (May 22, 2023): 3878. http://dx.doi.org/10.3390/ma16103878.
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As a key node in the promotion of the “Western Development” strategy in Xinjiang, China, the large-scale mining of coal resources is bound to cause a series of ecological and environmental problems, such as surface subsidence. Desert areas are widely distributed in Xinjiang, and from the perspective of reserves and sustainable development, it is crucial to fully utilize desert sand to make filling materials and predict its mechanical strength. In order to promote the application of High Water Backfill Material (HWBM) in mining engineering, a modified HWBM doped with Xinjiang Kumutage desert sand was used to prepare a desert sand-based backfill material, and its mechanical properties were tested. The discrete element particle flow software PFC3D is used to construct a three-dimensional numerical model of desert sand-based backfill material. The parameters such as sample sand content, porosity, desert sand particle size distribution, and model size are changed to study their impact on the bearing performance and scale effect of desert sand-based backfill materials. The results indicate that a higher content of desert sand can effectively improve the mechanical properties of HWBM specimens. The stress–strain relationship inverted by the numerical model is highly consistent with the measured results of desert sand-based backfill materials. Improving the particle size distribution of desert sand and reducing the porosity of filling materials within a certain range can significantly improve the bearing capacity of desert sand-based backfill materials. The influence of changing the range of microscopic parameters on the compressive strength of desert sand-based backfill materials was analyzed. This study provides a desert sand-based backfill material that meets the requirements of mine filling, and predicts its strength through numerical simulation.
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Abd Al Kareem, Mohammad, Ashraf Mostafa, Mahmoud Kamh, and Taher Yossif. "Role of Land Resources for Agricultural Development in El-Moghra Area, Western Desert, Egypt." Alexandria Journal of Agricultural Sciences 68, no. 2 (June 30, 2023): 126–29. http://dx.doi.org/10.21608/alexja.2023.312708.
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Song, Chunwei, Geer Teni, and Huishi Du. "Spatio-Temporal Evolution of Ecological Sensitivity in the Desert of China from 1981 to 2022." Sustainability 15, no. 16 (August 8, 2023): 12102. http://dx.doi.org/10.3390/su151612102.
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The northern desert of China plays an important strategic role in land resource security and national economic development. Research on the spatio-temporal changes of ecological sensitivity can provide a scientific reference for desert management and ecological restoration in arid and semi-arid areas in northern China. This paper takes the northern desert of China as the research area, uses the spatial distance model to build a comprehensive ecological sensitivity evaluation index system, and discusses the spatio-temporal evolution characteristics of ecological sensitivity in the area from 1981 to 2022. The results show the following: (1) The land use types in the northern desert of China are mainly sandy land, grassland and other lands. The changing areas of grassland and other lands are 74,353.14 km2 and 50,807.97 km2, which is an important factor affecting the ecological sensitivity in the northern desert of China. (2) Five aspects, including terrain, climate, hydrology, soil and vegetation, influence and restrict each other, and jointly create the background conditions for the distribution and change of ecological sensitivity in the northern desert of China. Climate and terrain are the most important influencing factors affecting the ecological sensitivity of northern desert of China. Vegetation is the most active and basic factor affecting the ecological sensitivity of northern desert of China. Hydrology and soil have a certain limiting effect on the ecological sensitivity of northern desert of China. (3) The spatial heterogeneity of ecological sensitivity in the northern desert of China is significant, showing the characteristics of high volatility in the west, low volatility in the central region and low volatility in the east. (4) For nearly 42 years, ecological sensitivity of the northern desert of China shows first increasing and then decreasing characteristics. The area of the fluctuation reduction zone accounts for 26.34% of the total research area, of which the area of extreme sensitivity and mild sensitivity varies by 11.84% and 65.28%, respectively. (5) The spatial aggregation characteristics of ecological sensitivity have changed significantly, and the area of high–high and low–low agglomeration areas has also been decreasing, indicating that the environment is obviously improving. In the future, we should pay attention to the efficient use of natural resources in the northern desert of China and strengthen the protection of all kinds of land to achieve the sustainable development of the regional environment.
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Zhang, Songlin, Kang Yuan, Jiaming Zhang, and Junlin Guo. "Experimental Study on Performance Influencing Factors and Reasonable Mixture Ratio of Desert Sand Ceramsite Lightweight Aggregate Concrete." Advances in Civil Engineering 2020 (February 17, 2020): 1–9. http://dx.doi.org/10.1155/2020/8613932.
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The utilization of desert sand for making ceramsite lightweight aggregate concrete is proposed to make full use of local natural resources in the development of a new type of lightweight and load-bearing wall material with good energy conservation, waste utilization, and thermal insulation performances. An orthogonal test was conducted to analyze the effects of the water-binder ratio, sand ratio, desert sand substitution rate, and fly ash content on the slump, apparent density, and tube crushing strength of desert sand ceramsite lightweight aggregate concrete. Thus, the optimal mixture ratio of the desert sand ceramsite concrete was obtained for the LC20 and LC25 strength grades. Based on two reasonable mixture ratios, the physical and mechanical properties of the desert sand ceramsite concrete were investigated. The results revealed that the water-binder ratio, sand ratio, and desert sand substitution rate were the main influencing factors, and the influence law is essentially consistent with that of ordinary desert sand concrete. Based on the reasonable substitution rate of desert sand, the main physical and mechanical properties of the desert sand ceramsite lightweight aggregate concrete, such as the tube crushing strength, tensile strength, and thermal conductivity, satisfied the requirements of the Chinese code’s specifications. In summary, desert sand can replace ordinary sand in ceramsite lightweight aggregate concrete for the production of new lightweight and load-bearing wall materials.
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Han, Feng, Zhibo Liu, Liangying Li, Wenhua Yin, and Jiyin Wu. "Study on Ecological Risk Evaluation and Optimum Selection of Desert Expressway Schemes Based on the Two-Dimensional Cloud Model." Mathematical Problems in Engineering 2022 (March 10, 2022): 1–13. http://dx.doi.org/10.1155/2022/1361861.
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Aimed at the fragile ecological environment in desert, once the resources along routes are destroyed, it will be difficult to restore the original ecological equilibrium in a short time. This paper studies the ecological-equilibrium-oriented risk evaluation of desert motorway schemes in order to choose route schemes reasonably and prevent the sandstorm aggravation caused by ecological damage. Having insight into the special geographical environment and road construction characteristics of Tengger Desert, the research establishes an index system for the ecological risk evaluation in desert areas from five aspects: the interference of living environment of animals and plants, the destruction of natural ecological landscapes, the pollution of water and soil resources, the development and utilization of natural resources, and the sand fixation of plants and the subsequent maintenance; then it confirms each evaluation index’s weight by using the set-valued statistics method to transform the description of the evaluation indexes to an interval value and furthermore determines the comprehensive ecological risk evaluation level of the route scheme in virtue of the two-dimensional cloud image MATLAB outputs which takes the ecological damage and remediation cost as the basic variables. By constructing the model under the method above, the ecological risk evaluations of two route schemes in Zhongwei sand crossing section of Wuhai-Maqin Expressway have been made. The result shows that the western route scheme’s evaluation grade is “good,” is better than the southern route scheme, is within the scope of acceptable risk, agrees with the practical project condition, and verifies the applicability and effectiveness of the model for ecological risk evaluation in desert areas.
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Moretti, Guido. "Un riparo nel deserto." TERRITORIO, no. 61 (June 2012): 88–91. http://dx.doi.org/10.3280/tr2012-061015.
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"Imagine a shelter in the desert before building a house inside the walls of the city". This profound thought from Gibran (1988) lends itself to many interpretations. This paper considers traditional building techniques, typical of hostile natural environments (like the desert), which make up the invaluable heritage of knowledge that has forever helped mitigate harsh living conditions, to the point of producing advanced forms of civilization and culture where apparently not even survival seems certain (Fathy 1986; Moretti 2007). In the case of the Sahrawi camps, in southwest Algeria near Tindouf, the hostility of the natural environment has given rise to a series of ‘survival activities', utilizing the great wealth of resources present in the culture of the desert and the people of Western Sahara.
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Abdelkarim, Ashraf, Mohamed Hssan Hassan Abdelhafez, Khaled Elkhayat, Mohammad Alshenaifi, Sultan Alfraidi, Ali Aldersoni, Ghazy Albaqawy, Amer Aldamaty, and Ayman Ragab. "Spatial Suitability Index for Sustainable Urban Development in Desert Hinterland Using a Geographical-Information-System-Based Multicriteria Decision-Making Approach." Land 13, no. 7 (July 4, 2024): 986. http://dx.doi.org/10.3390/land13070986.
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This study uses the Aswan Governorate model in southern Upper Egypt to determine the spatial suitability of sustainable urban development in the Egyptian deserts, ensure resource sustainability, and contribute to environmentally sustainable urban and economic growth in line with Egypt’s Vision 2030. To achieve these goals, a GIS-based multicriteria decision-making (GIS-MCDM) approach was used, through an innovative approach for integrating three main indicators: the risk index, environmental sensitivity, and economic resources. These indicators were divided into twenty-four criteria, and their weight was determined according to preference through the analytic hierarchy process (AHP). This study serves developmental, national, and expected regional and local development efforts for developing desert regions in the Aswan Governorate, which exceed 80% of the governorate’s area and represent the future of sustainable urban development. This study found three spatial suitability categories, with the largest between 50 and 70% suitability. The first category, with suitability greater than 70%, covers 27.2% of the Aswan Governorate in the north, on both sides of the Nile. Areas with medium spatial suitability, ranging from 50% to 70%, constitute the second category, accounting for 40.3% of the Aswan Governorate, with a concentration in the central regions. The third category includes areas with low spatial suitability, at less than 50%, which make up 32.5% of the governorate.
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Kurbaniyazov, A. K., S. K. Berdibayeva, N. K. Mamutov, P. R. Reimov, K. A. Kosnazarov, and E. U. Sagindykova. "SOME QUESTIONS STUDY OF DEFLATION PROCESSES AND SAND TRANSPORT IN THE DRAINED BOTTOM OF THE ARAL SEA." NEWS of National Academy of Sciences of the Republic of Kazakhstan 6, no. 444 (December 15, 2020): 134–44. http://dx.doi.org/10.32014/2020.2518-170x.140.
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The article discusses the results of the study of sandy deserts, which allowed us to obtain and reveal a number of important laws and mechanisms of formation, formation, movement and development of Aeolian landforms. The establishment of these patterns helps to solve a number of practical tasks to combat sand drifts in the sandy desert of various objects. In connection with the prospects for the development of this territory, it is very important to know the direction and intensity of the development of these processes. The obtained data on the mechanism and structure of the entire air-soil flow, starting from the moment of its formation, i.e. in the blowing zone, and ending with the transfer and deposition of soil particles by wind in the accumulation zone, make it possible to increase the level of scientific validity of the rational use of soil resources, as well as to take timely measures to protect the environment.
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Qureshi, Rahmatullah, and G. Raza Bhatti. "Nara Desert, Sindh, Pakistan: Part III: Range Types and Their Plant Resources." Rangelands 29, no. 1 (February 2007): 26–29. http://dx.doi.org/10.2111/1551-501x(2007)29[26:ndsppi]2.0.co;2.
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Chambers, Jeanne C., Elizabeth Leger, and Erin Goergen. "Cold Desert Fire and Invasive Species Management: Resources, Strategies, Tactics, and Response." Rangelands 31, no. 3 (June 2009): 14–20. http://dx.doi.org/10.2111/1551-501x-31.3.14.
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Salehie, Obaidullah, Tarmizi bin Ismail, Shamsuddin Shahid, Mohammed Magdy Hamed, Pennan Chinnasamy, and Xiaojun Wang. "Assessment of Water Resources Availability in Amu Darya River Basin Using GRACE Data." Water 14, no. 4 (February 11, 2022): 533. http://dx.doi.org/10.3390/w14040533.
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Water is diminishing in many places of the globe due to human intervention and climate variability. This study was conducted to assess water sustainability in the Amu Darya basin, the largest river catchment of central Asia, using two Gravity Recovery and Climate Experiment (GRACE) satellite solutions with a spatial resolution of 0.5°. Spatial variability of water sustainability was estimated by integrating reliability, resiliency and vulnerability. In addition, the Modified Mann–Kendall (MMK) test was utilized to detect the significant trends in water availability. Findings show a significant decline in the basin’s water supply, especially after 2010. Water availability was more variable in the east and a small area in the south. Trend analysis revealed higher declination in water availability in the range of −0.04 to −0.08 cm/year in the tundra and warm dry continental climate zones and the delta region of the basin ending in the Aral Sea in the cold desert climate zone. Water resources in the cold semi-arid (steppe) and most parts of the cold desert climate are more sustainable than the rest of the basin. Overall, the results indicate that water resources availability in a large-scale basin with climate diversity could be well assessed using the method used in this study.
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Huo, Aidi, Xunhong Chen, Huike Li, Ming Hou, and Xiaojing Hou. "Development and testing of a remote sensing-based model for estimating groundwater levels in aeolian desert areas of China." Canadian Journal of Soil Science 91, no. 1 (February 2011): 29–37. http://dx.doi.org/10.4141/cjss10044.
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Huo, A., Chen, X., Li, H., Hou, M. and Hou, X. 2011. Development and testing of a remote sensing-based model for estimating groundwater levels in aeolian desert areas of China. Can. J. Soil Sci. 91: 29–37. Regional groundwater level is an important data set for understanding the relationships between groundwater resources and regional ecological environments. The decline in water table levels leads to vegetation degradation and thus affects the ecological environment. Such a negative effect is especially apparent in the desertification areas. In this study, a remote-sensing based method was proposed to predict the distribution of the regional groundwater level in an aeolian desert area in northern China. The study used the Moderate Resolution Imaging Spectroradiometer (MODIS) remote sensing data and field investigations. Based on field investigation of groundwater level, soil moisture, and other supporting information in the aeolian desert area, as well as the soil moisture distribution derived from the MODIS images, empirical equations describing the relationship between the soil moisture and groundwater level were obtained. The groundwater levels derived using the MODIS image data were verified by groundwater levels measured from 58 wells. The results show that the correlation coefficient between the measured groundwater levels and the remote sensing-based estimated water levels was 0.868, indicating that the error is small and the predictions closely reflect the real water levels. This model can be used to predict groundwater levels in aeolian desert areas based on remote sensing data sets.
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Chebii, Vivien J., Samuel O. Oyola, Antoinette Kotze, Jean-Baka Domelevo Entfellner, J. Musembi Mutuku, and Morris Agaba. "Genome-Wide Analysis of Nubian Ibex Reveals Candidate Positively Selected Genes That Contribute to Its Adaptation to the Desert Environment." Animals 10, no. 11 (November 22, 2020): 2181. http://dx.doi.org/10.3390/ani10112181.
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The domestic goat (Capra hircus) is an important livestock species with a geographic range spanning all continents, including arid and semi-arid regions of Africa and Asia. The Nubian ibex (Capra nubiana), a wild relative of the domestic goat inhabiting the hot deserts of Northern Africa and the Arabian Peninsula, is well-adapted to challenging environments in hot deserts characterized by intense solar radiation, thermal extremes, and scarce water resources. The economic importance of C. hircus breeds, as well as the current trends of global warming, highlights the need to understand the genetic basis of adaptation of C. nubiana to the desert environments. In this study, the genome of a C. nubiana individual was sequenced at an average of 37x coverage. Positively selected genes were identified by comparing protein-coding DNA sequences of C. nubiana and related species using dN/dS statistics. A total of twenty-two positively selected genes involved in diverse biological functions such as immune response, protein ubiquitination, olfactory transduction, and visual development were identified. In total, three of the twenty-two positively selected genes are involved in skin barrier development and function (ATP binding cassette subfamily A member 12, Achaete-scute family bHLH transcription factor 4, and UV stimulated scaffold protein A), suggesting that C. nubiana has evolved skin protection strategies against the damaging solar radiations that prevail in deserts. The positive selection signatures identified here provide new insights into the potential adaptive mechanisms to hot deserts in C. nubiana.
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Muchtar, Muniarti, Yessi Fadriyanti, Yosi Suryarinilsih, Lola Felnanda, Delima Delima, and Asep Irfan. "UPAYA PEMECAHAN MASALAH PIS-PK MELALUI PARTISIPASI MASYARAKAT DENGAN PENGEMBANGAN POTENSI DAN SUMBER DAYA LOKAL DALAM MENCAPAI KELURAHAN SEHAT." GEMASSIKA: Jurnal Pengabdian Kepada Masyarakat 7, no. 1 (May 10, 2023): 76–85. http://dx.doi.org/10.30787/gemassika.v7i1.785.
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The Healthy Indonesia Program is one of the government's flagship programs to create healthy families, in determining a healthy family it can be seen from the 12 indicators of a healthy family. Problems that arise in healthy families can be solved with the PIS-PK approach. The purpose of this community service is to be able to solve PIS_PK problems through community participation by developing local potential and resources in achieving healthy urban villages in the new normal period. The methods used in this community service include providing education and assistance, making IT-based educational media and developing potential and local resources related to PIS-PK and the management of Covid-19. The result of this community service is that most of the knowledge of the people of kurao pagang, surao gadang and desert laweh is high after the intervention. The development of local potential and resources has been carried out by making masks at the embroidery tailor convection and distributing masks in Surau Gadang, desert laweh and kurao pagang.
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Huang, Zhenqiang. "The annual total artesian water diversion plan of 300billion Square meters in the arid desert area of northwest China." International Journal of Hydrology 4, no. 2 (April 14, 2020): 62–65. http://dx.doi.org/10.15406/ijh.2020.04.00227.
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The water shortage in the arid desert area of northwest China has seriously restricted the healthy, balanced and sustainable development of the national economy. In the arid desert area of northwest China, the total budget of the full artesian water diversion project of 300billion square meters per year is less than 3trillion yuan, and the construction period is less than 10years. Hope the central government, Ministry of Water Resources, ministry of agriculture, ministry of water and power. And other major national economy and people's livelihood related departments and many experts and scholars, people with lofty ideals to pay high attention in a timely manner.
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Singh, Ranbir, and Amojit Singh. "Perceived Socio-Cultural Impacts of Rural Tourim: A Case of That Desert of Rajasthan." Atna - Journal of Tourism Studies 4, no. 1 (January 1, 2009): 109–28. http://dx.doi.org/10.12727/ajts.4.9.
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Rural tourism, a diversification possibility for declining mass tourism has played a key role in the development of rural areas that were economically and socially depressed. It has been perceived as a valuable and growing sector of overall tourism market, representing a significant source of income to rural economies. The development of rural tourism like any other forms of tourism – may have unfavourable economic, social and environmental consequences for local communities. In relatively small tourism resort towns or villages, increased population and crowed especially in peak season cause noise pollution and congestion. Review in Indian context, there is really a dearth of research work in the field of rural tourism in general and desert tourism in particular. In, Rajasthan where the majority of population live in rural area; the scope of rural tourism is enormous. Current need of rural communities to diversity their economies and to replace traditional depleting industries compelled the rural economies to choose tourism as an avenue to achieve increase in income, employment and economical stability while revitalizing community’s traditional resources. The case study for this paper is from a rural area in Thar dessert of Rajasthan
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Rawat, Yashwant S., Vikram S. Negi, Ihab Mohamed Moussa, Wajid Zaman, and Hosam O. Elansary. "Diversity, Distribution and Vegetation Assessment of Woody Plant Species in the Cold Desert Environment, North-Western Himalaya, India." Sustainability 15, no. 13 (July 2, 2023): 10429. http://dx.doi.org/10.3390/su151310429.
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The species richness, distribution and community structure in cold desert regions across the world are poorly understood because of their inaccessibility and remoteness. Similarly, the structure and composition of forest resources, including other management units (i.e., agroforestry and forestry systems), have hardly been studied in the cold desert of the Lahaul valley. However, such information is a prerequisite to understanding the trends and changes in the vegetation distribution under global climate change scenarios, especially considering the sensitivity of plant species in high-altitude areas of the Himalayan region. High anthropogenic activity has exerted tremendous pressure on available forest resources, including other management units in the cold desert of the Lahaul valley. Standard ecological methods were used to obtain an ecological (i.e., status, structure, composition and vegetation patterns) understanding of the region for biodiversity conservation and environmental sustainability. The present study was aimed at understanding the trend, structure and composition of plant species in the cold desert region of the western Himalaya. A total of 64 species (27 trees and 37 shrubs) of vascular plants were recorded in the present study. Tree diversity demonstrated greater variation along the gradients and slope aspects. Salix fragilis trees, with a 102 tree ha−1 density and a few trees of Populus nigra, were found to be sparsely distributed under the agroforestry system on the south-facing slopes in Khoksar. In Jahlma, Salix fragilis grew in an agroforestry system with a density of 365 tree ha−1. However, in Hinsa, Juniperus polycarpos was a dominant tree species in the agroforestry system, with a density of 378 tree ha−1. On the north-facing slopes in Kuthar, a higher number of trees and bushes were present due to natural regeneration maintained by farmers along the edges of terraced agricultural fields. The south-facing slopes showed a relatively lower species richness and diversity as compared to north-facing slopes at similar locations due to relatively less favourable growth conditions under sun-exposed, extremely xeric soil conditions. The highest level of species turnover was found between the altitudes of 2400 m and 3000 m. Betula utilis showed the highest adaptability at higher altitudes (>3500 m). The vegetation analysis results and information generated in the present study are useful for gaining an ecological understanding of the cold desert ecosystem in the Lahaul valley. Sustainable forest resource management, including other management units (e.g., agroforestry and forestry systems), is crucial for improving the vegetation pattern, structure and function of the cold desert ecosystem, thereby contributing to climate change mitigation, adaptation, biodiversity and ecosystem service conservation.
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Chang, Yao, Dongbing Li, Zibibula Simayi, Shengtian Yang, Maliyamuguli Abulimiti, and Yiwei Ren. "Spatial Pattern Analysis of Xinjiang Tourism Resources Based on Electronic Map Points of Interest." International Journal of Environmental Research and Public Health 19, no. 13 (June 23, 2022): 7666. http://dx.doi.org/10.3390/ijerph19137666.
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This study considers the Point of Interest data of tourism resources in Xinjiang and studies their spatial distribution by combining geospatial analysis methods, such as the average nearest neighbor index, standard deviation ellipse, kernel density analysis, and hotspot analysis, to explore their spatial distribution characteristics. Based on the analysis results, the following conclusions are made. Different categories of tourism resource sites have different spatial distributions, and all categories of tourism resources in Xinjiang are clustered in Urumqi city. The geological landscape resource sites are widely distributed and have a ring-shaped distribution in the desert area of southern Xinjiang. The biological landscape resources are distributed in a strip along the Tianshan Mountains. The water landscape resources are concentrated in the northern Xinjiang area. The site ruins are mostly distributed in the western region of Xinjiang. The distributions of the architectural landscape and entertainment and shopping resources are highly coupled with the distribution of cities. The distributions of the six categories of tourism resource points are in the northeast-southwest direction. The centripetal force and directional nature of the resource points of the water landscape are not obvious. The remaining five categories of resource points have their own characteristics. The distribution of resources in the site ruins is relatively even, and there are many hotspot areas in the geomantic and architectural landscapes, which are mainly concentrated in Bazhou and other places. The biological landscape has many cold-spot areas, distributed in areas such as Altai in northern Xinjiang and Hotan in southern Xinjiang. The remaining four categories have cold-spot and hotspot areas with different distributions. Tourism is an important thrust for economic development. The study of the distribution of tourism resources on the spatial distribution of tourism resources has clear guidance for later tourism development, can help the tourism industry optimize the layout of resources, and can promote tourism resources to achieve maximum benefits. The government can implement effective control and governance.
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Adham, Ammar, Shwan Seeyan, Rasha Abed, Karrar Mahdi, Michel Riksen, and Coen Ritsema. "Sustainability of the Al-Abila Dam in the Western Desert of Iraq." Water 14, no. 4 (February 15, 2022): 586. http://dx.doi.org/10.3390/w14040586.
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Water scarcity is a major problem in the arid climate of Iraq’s Western Desert and people struggle to manage the precarious water supply. Harvesting rainwater is one sustainable method that can be used to increase the supply of water. Rainwater harvesting systems (RWH) are considered to be sustainable “if they can continue collecting, utilising, and consuming natural water resources for maximum livelihood development”. This study assessed the sustainably of the Al- Abila dam in Iraq’s Western Desert by determining its level of functionality in harvesting water and using it effectively. The reliability of the water supply and its potential productivity and water use efficiency were investigated as well. The balancing storage at the end of each runoff shows that dam storage of this magnitude is insufficient to fulfil the water demand. This research highlighted constraints that have affected system functioning or sustainability and provided suggestions and recommendations for risk-managed rainwater harvesting system installation methods and designs. The water conveyance factor and adequacy of the system were low, with 60% conveyance losses. This research helps policymakers to conduct large-scale, high-level assessments and answer basic problems about small earth dam development and management in Anbar’s Western Desert.
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Dritschilo, William, Paul M. Merifield, David Kay, John Sarna, Michael N. Weinstein, and Terry C. Sciarrotta. "Energy and Arid Lands: Potential Impacts of Intensive Energy Deployment in Desert Regions of Southern California." Environmental Conservation 13, no. 1 (1986): 7–16. http://dx.doi.org/10.1017/s0376892900035815.
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Desert regions are increasingly being put into use for a variety of purposes. The California Desert may be subjected to a number of energy technologies—particularly those related to harnessing solar energy—in the near future. In conjunction with past or other current disturbances, the fragmentation and pollution impacts of energy development could pose serious threats to the desert's fragile ecosystems.Land-intensive energy technologies, such as solar receivers and biomass crops, will mainly result in changes that disrupt natural habitats. If all feasible energy schemes came to fruition, we estimate that one-half of the California Desert's area would be devoted to energy production. Even for much lower estimates of energy development, most of the Desert's natural habitat would be fragmented in park areas. Based upon island geographic principles and conservation biology, loss of species would be inevitable. Some species are already threatened with extinction.Research is required to determine ways in which the Desert's natural resources—solitude, scenic vistas, wildlife, and insolation—can best be used to meet energy, recreation, and conservation, needs. In particular, research is required to estimate how successive small habitat losses would stress desert ecosystems.
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Wang, Xinyou, Quanlin Ma, Hujia Jin, Baoli Fan, Duobin Wang, and Huilong Lin. "Change in Characteristics of Soil Carbon and Nitrogen during the Succession of Nitraria Tangutorum in an Arid Desert Area." Sustainability 11, no. 4 (February 21, 2019): 1146. http://dx.doi.org/10.3390/su11041146.
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The shrub Nitraria tangutorum is distributed widely in arid desert areas, and plays a critical role in the desert–oasis ecosystem. This study quantified varying characteristics of carbon (C) and nitrogen (N) in the soil at four stages—the initial stage (IS), stable stage (SS), degradation stage (DS), and severe degradation stage (SDS)—in a steppe ecosystem in the desert of northwestern China. The results indicated that N. tangutorum experienced both expansion and deterioration as a decline of 50.7% occurred in the available soil water due to agricultural utilization, and the plant community transformed from being shrub-dominated to annual herb-dominated. At soil layer depths between 0–100 cm in the N. tangutorum nebkha dune ecosystem, organic C and total N storage was 1195.84 g/m2 and 115.01 g/m2 during the SDS, respectively, with an increase of 11.13% and 12.59% from the IS. In addition, the storage of C and N in the soil increased during the IS as well as the SS, when most of the C and N were accumulated, and the storage decreased during the DS and SDS, as the N. tangutorum communities declined. At soil layer depths between 0–100 cm in the desert steppe ecosystem, the highest storage levels of C and N were 8465.97 g/m2 and 749.29 g/m2 during the SS, and the lowest were 1076.12 g/m2 and 102.15 g/m2 during the IS, respectively. The changes and accumulation of C and N were greater in the deeper (40–100 cm) layer than in the surface layer of soil (0–40 cm). Lastly, changes in soil organic carbon (SOC) as well as in the total nitrogen (TN) were strongly related to the coverage degree, water content in soil, and the ratio of fine soil particles (silt and clay). To sum up, the intensive development of water resources has vastly reduced the ability of N. tangutorum vegetation to sequester C and N in the desert of Minqin. Efforts to perform ecological restoration and reverse desertification in the Minqin Desert should focus on preventing the unreasonable exploitation of water resources in order to maintain stable N. tangutorum communities.
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Liu, Jiao, Ying Zhao, Jianguo Zhang, Qiuli Hu, and Jie Xue. "Effects of Irrigation Regimes on Soil Water Dynamics of Two Typical Woody Halophyte Species in Taklimakan Desert Highway Shelterbelt." Water 14, no. 12 (June 14, 2022): 1908. http://dx.doi.org/10.3390/w14121908.
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Freshwater resources are in a shortage in arid regions worldwide, especially in extremely arid desert areas. To solve this problem, highly saline groundwater is used for drip irrigation of desert plants. Since more irrigation infiltrating into the deep soil cannot be absorbed and utilized by desert plants, it is crucial to determine optimal water-saving irrigation regimes. In this study, we examined the effects of irrigation regimes on the soil water dynamics of two typical woody halophyte species (Haloxylon and Calligonum), and quantified the irrigation intervals and periods based on a field test of precision irrigation control in the Taklimakan Desert Highway shelterbelt. Results showed that the change in soil moisture of two species in the shallow 0–60 cm layer could be divided into a rapid decline period (1–9 d), a slow decline period (9–19 d), and a relatively stable period (19–39 d) after irrigation. The decrease rate of soil moisture at the 0–60 cm depth was significantly higher than that at the 60–200 cm depth. The irrigation regime combining 35 mm irrigation with 10 days was beneficial to soil water storage and plant use with respect to Calligonum, while the irrigation regime combining 35 mm irrigation with 40 days was best for Haloxylon. Increasing the single irrigation amount and prolonging the irrigation period can further enable the more effective use of irrigation water. This study highlights that saline groundwater irrigation provides potential advantages for desert plants’ survival under reasonable irrigation regimes.
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Hyder, Ayaz, Jinhyung Lee, Ashley Dundon, Lauren T. Southerland, David All, Gretchen Hammond, and Harvey J. Miller. "Opioid Treatment Deserts: Concept development and application in a US Midwestern urban county." PLOS ONE 16, no. 5 (May 12, 2021): e0250324. http://dx.doi.org/10.1371/journal.pone.0250324.
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Objectives An Opioid Treatment Desert is an area with limited accessibility to medication-assisted treatment and recovery facilities for Opioid Use Disorder. We explored the concept of Opioid Treatment Deserts including racial differences in potential spatial accessibility and applied it to one Midwestern urban county using high resolution spatiotemporal data. Methods We obtained individual-level data from one Emergency Medical Services (EMS) agency (Columbus Fire Department) in Franklin County, Ohio. Opioid overdose events were based on EMS runs where naloxone was administered from 1/1/2013 to 12/31/2017. Potential spatial accessibility was measured as the time (in minutes) it would take an individual, who may decide to seek treatment after an opioid overdose, to travel from where they had the overdose event, which was a proxy measure of their residential location, to the nearest opioid use disorder (OUD) treatment provider that provided medically-assisted treatment (MAT). We estimated accessibility measures overall, by race and by four types of treatment providers (any type of MAT for OUD, Buprenorphine, Methadone, or Naltrexone). Areas were classified as an Opioid Treatment Desert if the estimate travel time to treatment provider (any type of MAT for OUD) was greater than a given threshold. We performed sensitivity analysis using a range of threshold values based on multiple modes of transportation (car and public transit) and using only EMS runs to home/residential location types. Results A total of 6,929 geocoded opioid overdose events based on data from EMS agencies were used in the final analysis. Most events occurred among 26–35 years old (34%), identified as White adults (56%) and male (62%). Median travel times and interquartile range (IQR) to closest treatment provider by car and public transit was 2 minutes (IQR: 3 minutes) and 17 minutes (IQR: 17 minutes), respectively. Several neighborhoods in the study area had limited accessibility to OUD treatment facilities and were classified as Opioid Treatment Deserts. Travel time by public transit for most treatment provider types and by car for Methadone-based treatment was significantly different between individuals who were identified as Black adults and White adults based on their race. Conclusions Disparities in access to opioid treatment exist at the sub-county level in specific neighborhoods and across racial groups in Columbus, Ohio and can be quantified and visualized using local public safety data (e.g., EMS runs). Identification of Opioid Treatment Deserts can aid multiple stakeholders better plan and allocate resources for more equitable access to MAT for OUD and, therefore, reduce the burden of the opioid epidemic while making better use of real-time public safety data to address a public health epidemic that has turned into a public safety crisis.
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Song, Zhenqi, Yuefeng Lu, Ziqi Ding, Dengkuo Sun, Yuanxin Jia, and Weiwei Sun. "A New Remote Sensing Desert Vegetation Detection Index." Remote Sensing 15, no. 24 (December 15, 2023): 5742. http://dx.doi.org/10.3390/rs15245742.
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Land desertification is a key environmental problem in China, especially in Northwest China, where it seriously affects the sustainable development of natural resources. In this paper, we combine high-resolution satellite remote sensing images and UAV (unmanned aerial vehicle) visible light images to extract desert vegetation data and quickly locate and accurately monitor land desertification in relevant areas according to changes in vegetation coverage. Due to the strong light and dry climate of deserts in Northwest China, which results in deeper vegetation shadow texture and mostly dry shrubs with fewer stems and leaves, the accuracy of the vegetation index commonly used in visible remote sensing image classification is not able to meet the requirements for monitoring and evaluating land desertification. For this reason, in this paper, we took the Hangjin Banner in Bayannur as an example and constructed a new vegetation index, the HSVGVI (hue–saturation–value green enhancement vegetation index), based on the HSV (hue–saturation–value) color space using channel enhancement that can improve the extraction accuracy of desert vegetation and reduce misclassification. In addition, in order to further test the extraction accuracy, samples of densely vegetated and multi-shaded areas were divided in the study area according to the accuracy-influencing factors. At the same time, the HSVGVI was compared with the vegetation indices EXG (excess green index), RGBVI (red–green–blue vegetation index), MGRVI (modified green–red vegetation index), NGBDI (normalized green–red discrepancy index), and VDVI (visible-band discrepancy vegetation index) constructed based on the RGB (red–green–blue) color space. The experimental results show that the extraction accuracy of the EXG and other vegetation indices constructed in RGB color space can only reach 70%, while the extraction accuracy of the HSVGVI can reach more than 95%. In summary, the HSVGVI proposed in this paper can better realize the extraction of desert vegetation data and can provide a reliable technical tool for monitoring and evaluating land desertification.
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Issar, Arie S., and Eilon Adar. "Progressive development of water resources in the Middle East for sustainable water supply in a period of climate change." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 368, no. 1931 (November 28, 2010): 5339–50. http://dx.doi.org/10.1098/rsta.2010.0184.
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The history of the Middle East has been influenced by past global climatic changes. Warm periods caused droughts, resulting in desertification, migration and war. Cold periods were humid and brought prosperity and agricultural settlement to the desert fringes. The forecast based on this correlation is that the present global warming will cause the drying up of the Middle East. As in the past, this negative impact should be mitigated by using the groundwater resources stored from past wetter times. This will involve deep drilling, pumping and modern irrigation methods within the framework of a new policy of ‘progressive development’, which will entail the use of currently undeveloped natural water resources beyond that of present water replenishment. While the use of the one-time groundwater reserves is taking place, a master long-term comprehensive progressive development plan for the Middle East will be prepared. This plan will include the step-by-step development of other water resources such as treated effluents, desalinated brackish groundwater and desalination of seawater.
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ARBAOU, Abderrahim. "WATER AND TOURISM IN DESERT OASES, MOROCCAN OASES AS A MODEL." RIMAK International Journal of Humanities and Social Sciences 04, no. 02 (March 1, 2022): 391–97. http://dx.doi.org/10.47832/2717-8293.16.26.
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The reality of Moroccan oases today has become disturbing, the situation of many of them predicts accelerating and multidimensional consequences. The irrational exploitation of natural resources, especially water resources, which are already experiencing natural constraints due to successive years of drought and the growing phenomenon of desertification, warns the disappearance of a very important national heritage, but in return of that, they are unique in the qualifications of a multi-tourist character. if they are well mobilized and valued, to create a developmental dynamism that restores the oasis to its position and creates good conditions for stability and local development. In order to achieve both goals (preserving and developing the oasis), the state has planned a set of programs and strategies directed for this purpose. However, despite the constraints and flaws that it experienced, it remains necessary, and requires concerted efforts from the various stakeholders and those interested in oasitic natter to protect these areas and restore consideration to them.
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Han, Tian, Ying Wang, Xiao Wang, Kang Chen, Huaiwu Peng, Zhenxin Gao, Lanxin Cui, Wentong Sun, and Qinke Peng. "Mixed Multi-Pattern Regression for DNI Prediction in Arid Desert Areas." Sustainability 15, no. 17 (August 25, 2023): 12885. http://dx.doi.org/10.3390/su151712885.
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As a crucial issue in renewable energy, accurate prediction of direct normal solar irradiance (DNI) is essential for the stable operation of concentrated solar power (CSP) stations, especially for those in arid desert areas. In this study, in order to fully explore the laws of climate change and assess the solar resources in arid desert areas, we have proposed a mixed multi-pattern regression model (MMP) for short-term DNI prediction using prior knowledge provided by the clear-sky solar irradiance (CSI) model and time series patterns of key meteorological factors mined using PR-DTW on different time scales. The contrastive experimental results demonstrated that MMP can outperform existing DNI prediction models in terms of three recognized statistical metrics. To address the challenge of limited data in arid desert areas, we presented the T-MMP model involving combined transfer learning and MMP. The experimental results demonstrated that T-MMP outperformed MMP in DNI prediction by exploiting the significant correlation between meteorological time series patterns in similar areas for data augmentation. Our study provided a valuable prediction model for accurate DNI prediction in arid desert areas, facilitating the economical and stable operation of CSP plants.
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Bouchareb, Nasser, and Ismail Morad. "Contribution of the Algerian water management strategy to the agricultural sector of Setif province." Journal of Innovations and Sustainability 7, no. 2 (June 30, 2023): 08. http://dx.doi.org/10.51599/is.2023.07.02.08.
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Purpose. This study aims to examine the water resource management and transfers in Setif province, Algeria, focusing on their impact on agriculture and economic development. The study aims to understand the effectiveness of implemented strategies such as water transfer, dam construction, seawater desalination and desert water use in optimizing water resources and improving water availability.
Results. The study found that the implementation of water resource transfer in Setif province has led to increase in the supply of drinking water, establishment of industrial complexes, and increased food security. The expansion of irrigated land and significant growth in crop production demonstrate the positive outcomes of this water transfer. However, challenges remain, such as the need to promote modern irrigation techniques, preserve water quality, and address environmental concerns.
Scientific novelty. This research contributes to the understanding of water management in Algeria by providing insights into the experiences and lessons learned from Setif province. The study highlights the importance of adopting contemporary irrigation techniques, raising farmers’ awareness regarding wise exploitation of water resources, and solving water quality problems.
Practical value. The findings of this study offer valuable insights for effective water resource management in Algeria and beyond. The results of the study from Setif province can help to develop and implement water management strategies in other regions, ultimately contributing to improved agricultural production, economic development, and long-term sustainability in the sector.
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Abdullaev, A. G. "ASSESSMENT OF THE DEVELOPMENT OF INDUSTRIAL SECTORS OF THE NIZHNEAMUDARYA ECONOMIC AREA OF THE REPUBLIC OF UZBEKISTAN BASED ON SWOT-ANALYSIS." Bulletin of Udmurt University. Series Biology. Earth Sciences 30, no. 3 (October 29, 2020): 317–24. http://dx.doi.org/10.35634/2412-9518-2020-30-3-317-324.
Full textAbstract:
Based on SWOT-analysis, the article assesses the formation and development of industrial sectors in the Nizhneamudarya economic region, and studies geographical aspects of effective use of resource potential in the development of the region's industry. The SWOT-analysis shows that the mineral resources of Karakalpakstan are very rich. Using the mineral wealth of the Sultan-Uvais mountains and the oil and gas resource potential of the Ustyurt plateau and the Aral sea region, it is possible to create poles of industrial growth based on the launch of new capacities. Khorezm region is distinguished by the fact that it has a rich industrial raw material base, which makes it possible to provide the population of the region with products of light, brick and tile, and food industry. Attention should also be paid to the availability of cheap labor force. The analysis shows that the district's strengths include a rich industrial raw material base, which allows the development of a number of heavy and light industries. Weaknesses are related to the fact that a significant part of the territory is desert, as well as to the weak development of transport infrastructure, which leads to low agricultural productivity.