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Статті в журналах з теми "Water quality management Vietnam"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 19 лютого 2022

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1

Hong, Pham Van, Nguyen Thao Nguyen, Dinh Tran Ngoc Huy, Nguyen Thu Thuy, and Le Thi Thanh Huong. "Evaluating Several Models of Quality Management and Impacts on Lychee Price Applying for Vietnam Agriculture Products Value Chain Sustainable Development." Alinteri Journal of Agricultural Sciences 36, no. 1 (March 10, 2021): 122–30. http://dx.doi.org/10.47059/alinteri/v36i1/ajas21018.

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Sustainability of Vietnam agriculture value chain will be dependent on various factors such as skills and experience of farmers, advanced technology, agricultural engineering, standards and models such as VIETGAP or GLOBAL GAP, etc. The role is still important, but Vietnam's agricultural production still has many Weakness points compared to other countries in the region when comparing resource use efficiency (land, water and labor). As a result, the efficiency of agricultural production tends to decrease recently. Specifically, the growth in average agricultural labor productivity annual rate

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2

Grayman, W. M., H. J. Day, and R. Luken. "Regional water quality management for the Dong Nai River Basin, Vietnam." Water Science and Technology 48, no. 10 (November 1, 2003): 17–23. http://dx.doi.org/10.2166/wst.2003.0528.

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A three-year study that started solely as an industrial pollution reduction effort in Dong Nai Province of Vietnam expanded into an ongoing regional river basin water quality management effort. The project was a cooperative effort between the United Nations (UNDP and UNIDO) and the Federal and Provincial governments in Vietnam. A comprehensive approach was used to assess the impacts and strategies for reducing industrial, municipal and agricultural pollution to the water, air and land. The strategy was based upon use of knowledge in four subject areas, economics, ecology, technology and instit

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3

Bui, Nguyen Khanh. "Water environmental protection in craft villages of Vietnam." E3S Web of Conferences 258 (2021): 08009. http://dx.doi.org/10.1051/e3sconf/202125808009.

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Craft villages are a unique feature of rural Vietnam. They play an important role in rural social - economic development and contribute to industrialisation and modernisation processes. Craft village development contributes to poverty alleviation and hunger eradication in rural areas, provides jobs in leisure time, improves incomes and quality of life etc. However, the sustainable development of craft villages has yet to receive due attention from legislation and administrative authorities at all levels. Unlike many countries in the world, craft villages in Vietnam are not only associated with

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4

Quyen, Nguyen Thi Kim, Huynh Van Hien, Le Nguyen Doan Khoi, Nobuyuki Yagi, and Anna Karia Lerøy Riple. "Quality Management Practices of Intensive Whiteleg Shrimp (Litopenaeus vannamei) Farming: A Study of the Mekong Delta, Vietnam." Sustainability 12, no. 11 (June 2, 2020): 4520. http://dx.doi.org/10.3390/su12114520.

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Continuous warnings on quality and food safety of shrimp products from importers have led to increases in port rejections. This has increased awareness amongst Vietnamese farmers for conducting shrimp farming according to specific certification guidelines. The purpose of this paper is to clarify the situation of quality control and effectiveness of Good Aquaculture Practices (GAP) in Vietnam (VietGAP) for intensive shrimp systems by making a comparison between VietGAP and non-GAP applied farms. The farmers in the GAP system performed well on seven control points related to quality management,

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5

Nguyen Thanh Giao. "Surveying causes of surface water pollution at Sao River, Binh Thuy district, Can Tho city, Vietnam." World Journal of Advanced Research and Reviews 9, no. 2 (February 28, 2021): 103–10. http://dx.doi.org/10.30574/wjarr.2021.9.2.0055.

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Surface water sources play an important role in human and biological activities and the socio-economic development of the region. Therefore, the assessment of water quality and determination of the causes of water pollution in Sao river is essential for good management of the surface water environment. The study was conducted from July to December 2020. Water samples were collected at the time of low tide to evaluate the water quality indicators of temperature, pH, conductivity (EC), dissolved oxygen (DO), biological oxygen demand (BOD), total suspended solids (TSS), ammonium (N-NH4+), orthoph

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6

Thanh Giao, Nguyen, Phan Kim Anh, and Huynh Thi Hong Nhien. "Spatiotemporal Analysis of Surface Water Quality in Dong Thap Province, Vietnam Using Water Quality Index and Statistical Approaches." Water 13, no. 3 (January 29, 2021): 336. http://dx.doi.org/10.3390/w13030336.

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The study was conducted to spatiotemporally analyze the quality, location and critical water variables influencing water quality using water monitoring data from the Department of Environment and Natural Resources, Dong Thap province in 2019. The water quality parameters including turbidity, pH, temperature, dissolved oxygen (DO), total suspended solids (TSS), biological oxygen demand (BOD), chemical oxygen demand (COD), nitrite (N-NO2−), nitrate (N-NO3−), ammonium (N-NH4+), total nitrogen (TN), orthophosphate (P-PO43−), chloride (Cl−), oil and grease, sulfate (SO42−), coliforms, and Escherich

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7

Tran, Q. B., and A. D. Pham. "Developing a Water Quality Index (WQI) for River Resources Management in Kien Giang Province, Vietnam." IOP Conference Series: Earth and Environmental Science 444 (February 7, 2020): 012054. http://dx.doi.org/10.1088/1755-1315/444/1/012054.

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8

Hop, Nguyen Van, Thuy Chau To, and Truong Quy Tung. "CLASSIFICATION AND ZONING OF WATER QUALITY FOR THREE MAIN RIVERS IN BINH TRI THIEN REGION (CENTRAL VIETNAM) BASED ON WATER QUALITY INDEX." ASEAN Journal on Science and Technology for Development 25, no. 2 (November 22, 2017): 435–44. http://dx.doi.org/10.29037/ajstd.274.

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Huong, Thach Han and Kien Giang rivers are the important surface water sources in Thua ThienHue, Quang Tri and Quang Binh provinces, respectively (in Central Vietnam). The river water samples were taken monthly (from June 2001 to May 2002 for Kien Giang river and from January to December of 2004 for Thach Han and Huong rivers) at selected sites. The temperature, pH, conductivity (EC), salinity, turbidity (TUR), DO, COD, BOD5, nitrate, ammonia, phosphate, total solids (TS), hardness, total dissolved iron, total coliform (TC), fecal coliform (FC) and sodium adsorption ratio (SAR) of water sample

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9

Bui, Long Ta, Truong Duy Cao, and Huong Thi My Hoang. "BUILDING THE MODEL OF MANAGEMENT AND INFORMATION SHARING OF ENVIRONMENTAL WATER QUALITY – DONG NAI BASIN AS A CASE STUDY." Science and Technology Development Journal 14, no. 1 (March 30, 2011): 16–28. http://dx.doi.org/10.32508/stdj.v14i1.1864.

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Recently, due to the impact of natural factors and human activities, the water quality in several basins in Vietnam has been seriously degraded. Pressing issues happening in the entire river basin-scale is polluted by waste from urban and industrial areas, oil spills and waste management. So far the system of policies and legal documents relating to protection of water quality basin is still missing and not synchronized, ensure funding for activities to protect water quality basin not meeting actual requirements. In particularly, there is no information data system to cater for the management

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10

Pham, Minh Tuyen, Nguyen Khanh Bui, and Roman Puzirevsky. "Legal framework for environmental impact assessment in Vietnam: the challenges between the regulations and practice." E3S Web of Conferences 164 (2020): 11008. http://dx.doi.org/10.1051/e3sconf/202016411008.

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After 30 years of economic reforms since the launch of Đổi Mới in 1986, Vietnam has recorded significant and historic achievements. From a poor, war-ravaged, centrally planned economy, which was closed off from much of the outside world, Vietnam has become a middle-income country with a dynamic market economy that is deeply integrated into the global economy. But growth has to a large extent come at the cost of the environment. Vietnam’s greenhouse gas emissions have grown the fastest in the region, while the environmental quality of its air, land, and water has deteriorated considerably. Wate

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11

Hoang, Thi Thu Hang, Trung Kien Nguyen, Thi Phuong Quynh Le, Dinh Kim Dang, and Thi Thuy Duong. "Assessment of the water quality downstream of Red River in 2015 (Vietnam)." Journal of Vietnamese Environment 8, no. 3 (January 17, 2017): 167–72. http://dx.doi.org/10.13141/jve.vol8.no3.pp167-172.

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The Red River is strongly affected by climate and human activities, especially in the downstream area concentrating industrial zones, large urbans and powerful agricultural activities. The surface water is progressively susceptible to anthropogenic pollution. The physicochemical variables of surface water were determined at 5 sampling sites (Quyet Chien, Truc Phuong, Ba Lat, Nam Dinh and Gian Khau). At each site, water samples were taken monthly during the period from January to December 2015 to assess the effect of human activities on the surface water quality. The actual survey results showe

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12

Dao, Anh Dzung, Duc Canh Nguyen, and Moo Young Han. "Design and operation of a rainwater for drinking (RFD) project in a rural area: case study at Cukhe Elementary School, Vietnam." Journal of Water, Sanitation and Hygiene for Development 7, no. 4 (October 13, 2017): 651–58. http://dx.doi.org/10.2166/washdev.2017.055.

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Abstract Since 2014, a well-designed rainwater for drinking (RFD) project has been successfully operating at Cukhe Elementary School, near Hanoi, Vietnam. During that time, daily rainfall data, water consumption, water quality and questionnaires to the community were prepared. Several concerns over the design and operation of RFD projects, such as lack of sufficient rainfall data, water quality concerns, and public acceptance, are identified and overcome. Modeled results from using observed daily rainfall data, and using a simplified method from insufficient monthly data, are compared. The sim

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13

Trinh, Le Hung, V. R. Zablotskii, Thi Giang Le, Thi Thu Hien Dinh, Thi Trinh Le, Thi Tham Trinh, and Thi Thu Nga Nguyen. "ESTIMATION Of SUSPENDED SEDIMENT CONCENTRATION USING VNREDSAT – 1A MULTISPECTRAL DATA, A CASE STUDY IN RED RIVER, HANOI, VIETNAM." GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY 11, no. 3 (September 29, 2018): 49–60. http://dx.doi.org/10.24057/2071-9388-2018-11-3-49-60.

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The traditional methods for measuring water quality variables are timeconsuming and do not give a synoptic view of a water body or, more significantly, a synoptic view of different water bodies across the landscape. However, remote sensing technology with advantages such as wide area coverage and short revisit interval have been effectively used for environmental pollution applications, such as for monitoring water quality parameters. Many studies around the world show that optical satellite imagery can be used effectively in evaluating suspended sediment concentration. This article presents r

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14

Grady, Caitlin A., Emmanuel C. Kipkorir, Kien Nguyen, and E. R. Blatchley. "Microbial quality of improved drinking water sources: evidence from western Kenya and southern Vietnam." Journal of Water and Health 13, no. 2 (December 8, 2014): 607–12. http://dx.doi.org/10.2166/wh.2014.206.

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In recent decades, more than 2 billion people have gained access to improved drinking water sources thanks to extensive effort from governments, and public and private sector entities. Despite this progress, many water sector development interventions do not provide access to safe water or fail to be sustained for long-term use. The authors examined drinking water quality of previously implemented water improvement projects in three communities in western Kenya and three communities in southern Vietnam. The cross-sectional study of 219 households included measurements of viable Escherichia col

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15

Hoanh, C. T., N. D. Phong, J. W. Gowing, T. P. Tuong, N. V. Ngoc, and N. X. Hien. "Hydraulic and water quality modeling: a tool for managing land use conflicts in inland coastal zones." Water Policy 11, S1 (March 1, 2009): 106–20. http://dx.doi.org/10.2166/wp.2009.107.

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Tidal effect and salinity intrusion are two defining characteristics of inland coastal zones, causing, respectively, complex variations in water levels and flows in river and canal networks, and serious problems for agriculture and freshwater fishery, but bringing significant benefits for brackish water aquaculture. To evaluate these conflicts and synergies in the development of agriculture, fishery and aquaculture, this paper adopts a hydraulic and salinity modeling approach that simulates the tidal propagation and salinity intrusion, and evaluates the effects of water and land use management

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16

Kim, Yonghwan, Anh Dzung Dao, Mikyeong Kim, Viet-Anh Nguyen, and Mooyoung Han. "Design and management of rainwater harvesting systems to control water quality for potable purposes in Cu Khe, Vietnam." Water Science and Technology: Water Supply 17, no. 2 (September 20, 2016): 452–60. http://dx.doi.org/10.2166/ws.2016.154.

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17

Quynh Anh, Tran Nguyen. "SEWER DISCHARGE CHARACTERISTICS AND WATER BALANCE IN DRY SEASON IN HUE, VIETNAM." Vietnam Journal of Science and Technology 54, no. 2A (March 19, 2018): 265. http://dx.doi.org/10.15625/2525-2518/54/2a/11940.

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Vietnam has been developing sewerage recently. Although sewer discharge quantity and quality data is vital for proper sewage management, their fluctuation has not been well characterized in most of cities in developing countries. This study aimed to characterize a combined sewer discharge in a residential drainage area (11.2 ha) in Hue city, Vietnam on dry days in dry season (DdDs). A 24-hour survey on sewage quantity and quality was conducted at the sewer outlet on two weekdays and two weekends in July 2015. Household water consumption was hourly recorded from water meters for 23 households.

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18

Richter, Dominik, Nadine Goeppert, Björn Zindler, and Nico Goldscheider. "Spatial and temporal dynamics of suspended particles and E. coli in a complex surface-water and karst groundwater system as a basis for an adapted water protection scheme, northern Vietnam." Hydrogeology Journal 29, no. 5 (May 28, 2021): 1965–78. http://dx.doi.org/10.1007/s10040-021-02356-6.

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AbstractKarst aquifers in subtropical regions are characterized by high variability of water availability and quality due to changes associated with rainy and dry seasons. An additional challenge for water management is the combination of surface-water and karst groundwater systems since high spatiotemporal dynamics cause high variability of water quality. In these cases, adapted protection strategies are required. In this study, a protection approach for the catchment of a river-water diversion point in a rural area in northern Vietnam is developed. The variability of water quality was evalua

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19

Nguyen, Quyen Thi Kim, Long Thanh Nguyen, and Hien Van Huynh. "CURRENT SITUATION AND ROLES OF VietGAP CERTIFICATION TO SHRIMP FARMING: A CASE STUDY OF WHITE LEG SHRIMP FARMING IN SOC TRANG PROVINCE, VIET NAM." Scientific Journal of Tra Vinh University 1, no. 37 (March 25, 2020): 98–107. http://dx.doi.org/10.35382/18594816.1.37.2020.381.

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This study was conducted from February to May 2019 through interviewing 105 white leg shrimp intensive farming households according to VietGAP certification in Soc Trang Province in Vietnam, and aimed to evaluate current situation and the efficiency of VietGAP practices regarding disease and quality management. VietGAPhas been operated since 2013 and has grown dramatically. Due to good practices and positive influence of VietGAP guidance, such as reservoir construction (94%); post-larvae testing (100%); reasonable stocking density(40 PL/ m2); and monitoring water using toolkits (100%); disease

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20

Ender, Anna, Nadine Goeppert, Felix Grimmeisen та Nico Goldscheider. "Evaluation of β-d-glucuronidase and particle-size distribution for microbiological water quality monitoring in Northern Vietnam". Science of The Total Environment 580 (лютий 2017): 996–1006. http://dx.doi.org/10.1016/j.scitotenv.2016.12.054.

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21

Giao, Nguyen Thanh, Nguyen Van Cong, and Huynh Thi Hong Nhien. "Using Remote Sensing and Multivariate Statistics in Analyzing the Relationship between Land Use Pattern and Water Quality in Tien Giang Province, Vietnam." Water 13, no. 8 (April 15, 2021): 1093. http://dx.doi.org/10.3390/w13081093.

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This study was carried out to understand how land use patterns influence surface water quality in Tien Giang Province using remote sensing and statistical approaches. Surface water quality data were collected at 34 locations with the frequency of four times (March, June, September, and November) in 2019. Water quality parameters were used in the analysis, including pH, temperature, electrical conductivity (EC), total suspended solids (TSS), dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), ammonium (N-NH4+), nitrite (N-NO2−), nitrate (N-NO3−), sulfate (SO42−)

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22

Dang, Thien Ngon. "Autonomous water-cleaning machine using solar energy in shrimp ponds." Journal of Vietnamese Environment 3, no. 1 (November 6, 2012): 30–33. http://dx.doi.org/10.13141/jve.vol3.no1.pp30-33.

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Limited water exchange shrimp culture technology is commonly used today in many shrimp farms in Vietnam to reduce water usage, input of diseases and discharge of nutrient-rich effluents into environment as well as to increase the production per unit area. However, a remaining problem in this technology is that the water quality in shrimp ponds will be reduced due to limitation of water exchange for a long period. The accumulation of inorganic components such as waste feed, bacterial deposits or other biological debris at the pond bottom will lead to low dissolved oxygen, high ammonia-nitrogen

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23

Nguyen, Giao Thanh. "EVALUATING SURFACE WATER QUALITY AND TESTING FREQUENCY IN TIEN AND HAU RIVERS, AN GIANG PROVINCE, USING 10-YEAR MONITORING DATA." Scientific Journal of Tra Vinh University 1, no. 37 (March 25, 2020): 78–88. http://dx.doi.org/10.35382/18594816.1.37.2020.379.

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The study aimed to assess the variation of surface water quality and evaluate the monitoring frequency at threecontinuous monitoring stations on the Tien river (MT1 station) and Hau river (MH1 and MH2 station) over a 10-year period (2009-2018), with a monitoring frequency of 12 times per year (monthly). The water quality variables comprised of temperature (oC), pH, dissolved oxygen (DO, mg/L), total suspended solids (TSS, mg/L), nitrate (N-NO- 3 , mg/L), orthophosphate (P-PO3 4- mg/L), chemical oxygen demand (COD, mg/L), and coliforms (MPN/100 mL). The individual water quality parameters were

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24

Khoi, Dao Nguyen, Van Nguyen, Truong Thao Sam, and Pham Nhi. "Evaluation on Effects of Climate and Land-Use Changes on Streamflow and Water Quality in the La Buong River Basin, Southern Vietnam." Sustainability 11, no. 24 (December 16, 2019): 7221. http://dx.doi.org/10.3390/su11247221.

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The effects of climate and land-use changes have put intense pressures on water resources with regard to water quantity and quality in the La Buong River Basin, located in Southern Vietnam. Therefore, an estimate of such effects and their consequences on water resources in this area is needed. The aim of this study is to evaluate the segregated and aggregated effects of climate change and land-use change on streamflow and water quality components (sediment and nutrient loads) using the well-known Soils and Water Assessment Tool (SWAT). The SWAT model was carefully calibrated and validated agai

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25

Nguyen, Hong, Gunter Meon, and Van Nguyen. "Development of an Event-Based Water Quality Model for Sparsely Gauged Catchments." Sustainability 11, no. 6 (March 24, 2019): 1773. http://dx.doi.org/10.3390/su11061773.

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This paper describes an event-based water quality model for sparsely gauged catchments. The model was cultivated in a robust way to cope with practical issues, such as limited available data and error propagation. A simplified model structure and fewer input parameters are the most appealing features of this model. All model components are coupled and controlled within an Excel Spreadsheet Macro as an operational tool. Herein, the geomorphological instantaneous unit hydrograph (GIUH), the simplified process erosion and sedimentation component, the loading function, and the river routing from d

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26

Le, Van Du, Thanh Giao Nguyen, and Hoang Dan Truong. "The Variation of Water Quality in Three Land Use Types in U Minh Ha National Park, Ca Mau Province, Vietnam Using Multivariate Statistical Approaches." Water 13, no. 11 (May 27, 2021): 1501. http://dx.doi.org/10.3390/w13111501.

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This study was conducted to assess the water quality affected by different land use patterns in U Minh Ha National Park, Ca Mau, Vietnam. This study determined the water quality characteristics in three land use types (Acacia hybrid, planted melaleuca cajuputi, and natural melaleuca cajuputi) at different plant ages on two acid sulfate soil layers in the rainy season (8/2018) and dry season (4/2019) using nine water quality parameters. Multivariate statistical analyses were applied to evaluate the correlation and spatial and temporal variations in the water quality. The study results showed th

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27

Ha, Tuan Minh. "Agronomic Requirements of Tomatoes and Production Methods in the Red River Delta of Vietnam." Journal of Tropical Crop Science 2, no. 1 (February 1, 2015): 33–38. http://dx.doi.org/10.29244/jtcs.2.1.33-38.

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Tomato (Lycopersicon esculentum Mill.) (Solanaceae) is one of the most economically important vegetable crops in the Red River Delta (RRD) of Northern Vietnam. The recent market demands for tomatoes in both domestic and overseas markets have led to an increasing cultivated area for the crop in the RRD. To support growers in producing healthy and quality produce, this paper presents in detail the agronomic requirements of tomatoes regarding temperatures, light, water, suitable soil types and nutrients. Cultivation techniques are discussed to provide a general guide for developing appropriate ma

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28

Vo-Van, T., A. Nguyen-Hai, M. V. Tat-Hong, and T. Nguyen-Trang. "A New Clustering Algorithm and Its Application in Assessing the Quality of Underground Water." Scientific Programming 2020 (March 7, 2020): 1–12. http://dx.doi.org/10.1155/2020/6458576.

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Cluster analysis, which is to partition a dataset into groups so that similar elements are assigned to the same group and dissimilar elements are assigned to different ones, has been widely studied and applied in various fields. The two challenging tasks in clustering are determining the suitable number of clusters and generating clusters of arbitrary shapes. This paper proposes a new concept of “epsilon radius neighbors” which plays an essential role in the cluster-forming process, thereby determining both the number of clusters and the shape of clusters, automatically. Based on “epsilon radi

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29

Nitzsche, Katja Sonja, Vi Mai Lan, Pham Thi Kim Trang, Pham Hung Viet, Michael Berg, Andreas Voegelin, Britta Planer-Friedrich, et al. "Arsenic removal from drinking water by a household sand filter in Vietnam — Effect of filter usage practices on arsenic removal efficiency and microbiological water quality." Science of The Total Environment 502 (January 2015): 526–36. http://dx.doi.org/10.1016/j.scitotenv.2014.09.055.

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Vu, Danh Tuyen, Anh Huy Hoang, and Tien Thanh Nguyen. "Surface water quality assessment based on GIS and hierarchical clustering technique: a case study of Cam Pha Region, Northeast Vietnam." International Journal of Global Environmental Issues 18, no. 2 (2019): 158. http://dx.doi.org/10.1504/ijgenvi.2019.10023931.

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Vu, Danh Tuyen, Tien Thanh Nguyen, and Anh Huy Hoang. "Surface water quality assessment based on GIS and hierarchical clustering technique: a case study of Cam Pha Region, Northeast Vietnam." International Journal of Global Environmental Issues 18, no. 2 (2019): 158. http://dx.doi.org/10.1504/ijgenvi.2019.102303.

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32

Do, Thi Ngoc Bich, Cao Don Nguyen, and Bao Hoang Nguyen. "Assessment of achieving sustainable development of clean water and sanitation (SDG6) goals for the Srepok river basin." Ministry of Science and Technology, Vietnam 63, no. 4 (April 30, 2021): 44–49. http://dx.doi.org/10.31276/vjst.63(4).44-49.

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This paper presents the results of the assessment of achieving sustainable development of clean water and sanitation (SDG6) goals for the Srepok river basin by the research team at the Water Resources Institute (WRI). The assessment results of some key indicators including “Proportion of the population using safely managed drinking water services 6.1.1”, “Proportion of the population using safe managed sanitation services 6.2.1a”, “Proportion of bodies of water with good ambient water quality 6.3.2”, and “Proportion of transboundary basin area with an operational arrangement for water cooperat

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33

Wrigley, Tim. "Microbial counts and pesticide concentrations in drinking water after alum flocculation of channel feed water at the household level, in Vinh Long Province, Vietnam." Journal of Water and Health 5, no. 1 (September 1, 2006): 171–78. http://dx.doi.org/10.2166/wh.2006.003.

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Low technology water supply, treatment and sanitation techniques were reviewed in a Vietnamese village in the Mekong River Delta as part of an AusAID Project to reduce poverty and to improve the overall living standards and health in the Cuu Long (Mekong) delta for 500,000 rural poor. It was found that dosing of canal water in 200-l ceramic jars with alum, PAC or PAC followed by hypochlorite provides a high level of treatment for drinking water at the household level in a rural village setting in the Mekong River delta. Seventy per cent (7 in total) of the 24 samples collected showed that Esch

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Bearden, Bennett L. "The legal regime of the Mekong River: a look back and some proposals for the way ahead." Water Policy 12, no. 6 (December 3, 2009): 798–821. http://dx.doi.org/10.2166/wp.2009.060.

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In 1957, the four lower Mekong River states jointly organized the development of the basin and established a legal regime that has spanned five decades of cooperation. In 1995, Cambodia, Lao PDR, Thailand and Vietnam concluded the Agreement on the Cooperation for the Sustainable Development of the Mekong River Basin and formed the Mekong River Commission, which has been lauded as the most progressive of river institutions and a model for the world. At the core of the 1995 Mekong Agreement is the concept of sustainable development. Guided by this sustainable development paradigm, the Lower Meko

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Minh Hai, Dang. "Optimal Planning of Low-Impact Development for TSS Control in the Upper Area of the Cau Bay River Basin, Vietnam." Water 12, no. 2 (February 14, 2020): 533. http://dx.doi.org/10.3390/w12020533.

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Recently, an increase in impervious area induced by the process of urbanization has significantly affected the quantity and quality of urban surface runoff. Among the pollutants of the storm flow, total suspended solids (TSS) are an extremely important cause of water quality deterioration. This paper aims to use the integrated nondominated sorting genetic algorithm (NSGA II)–Storm Water Management Model (SWMM) method to find optimal Low-Impact Development (LID) plans which ensure maximum TSS load reduction and minimum total relative cost. Green roofs, permeable pavements, and tree boxes with f

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Thi Phong Lan, Nguyen, Anders Dalsgaard, Phung Dac Cam, and Duncan Mara. "Microbiological quality of fish grown in wastewater-fed and non-wastewater-fed fishponds in Hanoi, Vietnam: influence of hygiene practices in local retail markets." Journal of Water and Health 5, no. 2 (June 1, 2007): 209–18. http://dx.doi.org/10.2166/wh.2007.014b.

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Mean water quality in two wastewater-fed ponds and one non-wastewater-fed pond in Hanoi, Vietnam was ∼106 and ∼104 presumptive thermotolerant coliforms (pThC) per 100 ml, respectively. Fish (common carp, silver carp and Nile tilapia) grown in these ponds were sampled at harvest and in local retail markets. Bacteriological examination of the fish sampled at harvest from both types of pond showed that they were of very good quality (2−3 pThC g−1 fresh muscle weight), despite the skin and gut contents being very contaminated (102−103 pThC g−1 fresh weight and 104−106 pThC g−1 fresh weight, respec

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Harkison, Tracy, and Sandra Goh. "Good morning Vietnam." Hospitality Insights 4, no. 1 (May 13, 2020): 1–2. http://dx.doi.org/10.24135/hi.v4i1.78.

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The following is a reflection from two Auckland University of Technology (AUT) academics seconded as visiting professors to teach events and human resource management at a Vietnamese university. As this may be an ongoing project for AUT, they have provided these insights to guide other academics venturing to teach in Vietnam. It was a humbling experience and we recommend all academics make teaching overseas and entering into global classrooms part of their journey. Although others with experience of overseas teaching have recommended co-teaching with a translator/interpreter [1], interpr

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Ozaki, Hirokazu, Thi Kinh Co, Anh Kha Le, Viet Nu Pham, Van Be Nguyen, Mitsunori Tarao, Huu Chiem Nguyen, et al. "Human factors and tidal influences on water quality of an urban river in Can Tho, a major city of the Mekong Delta, Vietnam." Environmental Monitoring and Assessment 186, no. 2 (October 10, 2013): 845–58. http://dx.doi.org/10.1007/s10661-013-3421-y.

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Sithirith, Mak, Jaap Evers, and Joyeeta Gupta. "Damming the Mekong tributaries: water security and the MRC 1995 Agreement." Water Policy 18, no. 6 (May 12, 2016): 1420–35. http://dx.doi.org/10.2166/wp.2016.003.

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Water security is a key governance challenge especially in relation to transboundary rivers. While the literature elaborates on the water security concept, there is very little on how to operationalize it in the transboundary context. Hence, this paper addresses the question: How can the governance of transboundary rivers be operationalized to deal with national water security concerns? It uses a literature review and a case study focusing on dams in the Mekong tributaries, namely the Sesan, part of the 3S Basin, in Vietnam and Cambodia. The paper describes the damming process in the 3S Basin

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Dao, Thanh-Son, Jorge Nimptsch, and Claudia Wiegand. "Dynamics of cyanobacteria and cyanobacterial toxins and their correlation with environmental parameters in Tri An Reservoir, Vietnam." Journal of Water and Health 14, no. 4 (March 11, 2016): 699–712. http://dx.doi.org/10.2166/wh.2016.257.

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This study evaluates the water quality from Tri An Reservoir, a drinking water supply for several million people in southern Vietnam, in terms of cyanobacterial biomass and their potent toxins, microcystins (MCs). Cyanobacteria, their toxins and environmental parameters were monitored monthly for 1 year (April 2008–March 2009) at six stations covering a transect through the reservoir. Dynamics of cyanobacterial abundance in relation to cyanobacterial biomass, toxins and environmental factors were investigated. Environmental variables from Tri An Reservoir favored algal and cyanobacterial devel

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Vinh, Pham Quang, Nguyen Thi Thu Ha, Nguyen Thanh Binh, Nguyen Ngoc Thang, La Thi Oanh, and Nguyen Thien Phuong Thao. "Developing algorithm for estimating chlorophyll-a concentration in the Thac Ba Reservoir surface water using Landsat 8 Imagery." VIETNAM JOURNAL OF EARTH SCIENCES 41, no. 1 (January 8, 2019): 10–20. http://dx.doi.org/10.15625/0866-7187/41/1/13542.

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This study aims at developing a regional algorithm to quantify chlorophyll-a concentration (Chla) in the Thac Ba Reservoir surface-water using Landsat 8 imagery basing on in-situ data of Chla and above-water reflectance taken in both dry and rainy seasons 2018. In situ datasets obtained from 30 water sampling sites show a strong correlation (R2=0.73) with the reflectance ratio of two Landsat 8 (L8) bands, the green band (band 3: B3) versus the red band (band 4: B4), B3 / B4, by an exponential equation. The algorithm for estimating Chla using this ratio was well-matched up the validation using

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Ha, Pham Thi Thu, Nomessi Kokutse, Sophie Duchesne, Jean-Pierre Villeneuve, Alain Bélanger, Ha Ngoc Hien, Babacar Toumbou, and Duong Ngoc Bach. "Assessing and selecting interventions for river water quality improvement within the context of population growth and urbanization: a case study of the Cau River basin in Vietnam." Environment, Development and Sustainability 19, no. 5 (June 14, 2016): 1701–29. http://dx.doi.org/10.1007/s10668-016-9822-7.

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PHAM, THU THUY, BRUCE M. CAMPBELL, STEPHEN GARNETT, HEATHER ASLIN, and MINH HA HOANG. "Importance and impacts of intermediary boundary organizations in facilitating payment for environmental services in Vietnam." Environmental Conservation 37, no. 1 (March 2010): 64–72. http://dx.doi.org/10.1017/s037689291000024x.

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SUMMARYIntermediaries are seen as important actors in facilitating payments for environmental services (PES). However, few data exist on the adequacy of the services provided by intermediaries and the impacts of their interventions. Using four PES case studies in Vietnam, this paper analyses the roles of government agencies, non-government organizations, international agencies, local organizations and professional consulting firms as PES intermediaries. The findings indicate that these intermediaries are essential in supporting PES establishment. Their roles are as service and information prov

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Kim, Dong Eon, Jiandong Liu, Shie-Yui Liong, Philippe Gourbesville, and Günter Strunz. "Satellite DEM Improvement Using Multispectral Imagery and an Artificial Neural Network." Water 13, no. 11 (May 31, 2021): 1551. http://dx.doi.org/10.3390/w13111551.

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The digital elevation model (DEM) is crucial for various applications, such as land management and flood planning, as it reflects the actual topographic characteristic on the Earth’s surface. However, it is quite a challenge to acquire the high-quality DEM, as it is very time-consuming, costly, and often confidential. This paper explores a DEM improvement scheme using an artificial neural network (ANN) that could improve the German Aerospace’s TanDEM-X (12 m resolution). The ANN was first trained in Nice, France, with a high spatial resolution surveyed DEM (1 m) and then applied on a faraway c

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Doan, Thuy Thu, Phimmasone Sisouvanh, Thanyakan Sengkhrua, Supranee Sritumboon, Cornelia Rumpel, Pascal Jouquet, and Nicolas Bottinelli. "Site-Specific Effects of Organic Amendments on Parameters of Tropical Agricultural Soil and Yield: A Field Experiment in Three Countries in Southeast Asia." Agronomy 11, no. 2 (February 15, 2021): 348. http://dx.doi.org/10.3390/agronomy11020348.

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Organic amendments may improve the quality of acidic tropical agricultural soils with low organic carbon contents under conventional management (mineral fertilization and irrigation) in Southeast Asia. We investigated the effect of biochar, compost and their combination on maize growth and yield, soil physical, biological and chemical properties at harvesting time at four sites in three countries: Thailand, Vietnam and Laos. Treatments consisted of 10 t·ha−1 cow manure compost and 7 t·ha−1 of Bamboo biochar and their combination. Maize biomass production and cop yields were recorded for two se

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Hung, Tran Trong, Tran Anh Tu, Dang Thuong Huyen, and Marc Desmet. "Presence of trace elements in sediment of Can Gio mangrove forest, Ho Chi Minh city, Vietnam." VIETNAM JOURNAL OF EARTH SCIENCES 41, no. 1 (January 8, 2019): 21–35. http://dx.doi.org/10.15625/0866-7187/41/1/13543.

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Can Gio mangrove forest (CGM) is located downstream of Ho Chi Minh City (HCMC), situated between an estuarine system of Dong Nai - Sai Gon river and a part of Vam Co river. The CGM is the largest restored mangrove forest in Vietnam and the UNESCO’s Mangrove Biosphere Reserve. The CGM has been gradually facing to numeric challenges of global climate change, environmental degradation and socio-economic development for the last decades. To evaluate sediment quality in the CGM, we collected 13 cores to analyze for sediment grain size, organic matter content, and trace element concentration of Cd,

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Trinh, T., C. Ho, N. Do, A. Ercan, and M. L. Kavvas. "Development of high-resolution 72 h precipitation and hillslope flood maps over a tropical transboundary region by physically based numerical atmospheric–hydrologic modeling." Journal of Water and Climate Change 11, S1 (July 22, 2020): 387–406. http://dx.doi.org/10.2166/wcc.2020.062.

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Abstract Long-term, high spatial and temporal resolution atmospheric and hydrologic data are crucial for water resource management. However, reliable high-quality precipitation and hydrologic data are not available in various regions around the world. This is, in particular, the case in transboundary regions, which have no formal data sharing agreement among countries. This study introduces an approach to construct long-term high-resolution extreme 72 h precipitation and hillslope flood maps over a tropical transboundary region by the coupled physical hydroclimate WEHY-WRF model. For the case

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Ngo, Quang Xuan, Xuan Dung Nguyen, and Thuy Nga To. "Applied meiobenthos and nematode communities as tool for environmental monitoring and assessment in the Mekong estuarine system." Journal of Vietnamese Environment 4, no. 2 (December 2, 2013): 50–54. http://dx.doi.org/10.13141/jve.vol4.no2.pp50-54.

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The Mekong estuarine system is a sensitive region which is strongly effected from economic activities in the south Vietnam. This ecosystem is not only impacted by anthropogenic factors but also known as one of severely affected areas by climate change. The issue of environmental management in this estuarine system is very important and necessary. Many coastal provinces in the Mekong delta have awareness of environmental estuarine management to set up bio-monitoring programs for water and ecological quality. However, there is no province including meiobenthos or nematode communities in environm

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Le, Nhu Da, Thi Xuan Binh Phung, and Thi Phuong Quynh Le. "Microbial contamination in the surface water in the Ba Vi National Park, Ha Noi." Journal of Vietnamese Environment 9, no. 4 (August 8, 2018): 217–22. http://dx.doi.org/10.13141/jve.vol9.no4.pp217-222.

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Ba Vi National Park, one of 28 Vietnamese National Parks, is currently preserved and exploited for a variety of purposes, including the preservation of intact natural forest ecosystems and genetic resources of rare plants and animals. This paper presents the monitoring results of microbial contamination in surface water environment of the Ba Vi National Park (Ha Noi) in the period 2013-2014 and 2018. The results showed that total coliform (TC) density varied from 23 to 11,000 MPN/100ml in bimonthly observation in 2013-2014 which was lower than that one of sampling campaign in 2018, from 900 MP

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Thủy, Phan Thị Thanh, Nguyễn Văn Việt, Nguyễn Kiều Lan Phương, and Lee Chun-Hung. "WATER QUALITY ASSESSMENT USING WATER QUALITY INDEX: A CASE OF THE RAY RIVER, VIETNAM." TNU Journal of Science and Technology 226, no. 06 (May 25, 2021): 38–47. http://dx.doi.org/10.34238/tnu-jst.4385.

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Sông Ray là một trong những hệ thống sông chảy qua tỉnh Đồng Nai và Bà Rịa - Vũng Tàu. Nước sông có tầm quan trọng trong việc phục vụ sinh hoạt, công nghiệp và nông nghiệp. Tuy nhiên, hiện nay chất lượng nước ngày càng ảnh hưởng nghiêm trọng bởi các hoạt động vui chơi giải trí, du lịch, chăn nuôi, phân bón và thuốc trừ sâu. Do đó, nghiên cứu nàyđược thực hiện với mục đích xác định và đánh giá các thông số hóa lý quan trọng. Mẫu được thu định kỳ 4 tháng trong năm 2019 (tháng 3, 6, 10, 12) giữa hai mùa khô và mùa mưa bao gồm 13 thông số hóa lý như nhiệt độ, pH, độ đục, oxy hòa tan (DO), amoni (N

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