Suitable eco-environmental water requirement in Sanmenxia Reservoir wetland based on 3S technology

2021 ◽  
Vol 228 ◽  
pp. 1-13
Author(s):  
Fuqiang Wang ◽  
Xinli Hou ◽  
Heng Zhao ◽  
Pingping Kang ◽  
Subing Lv
Keyword(s):  
Environmental Water ◽  
Water Requirement ◽  
3S Technology ◽  
Sanmenxia Reservoir

Ecological and environmental water requirement in the middle Yellow River

2009 ◽  
Vol 17 (2) ◽  
pp. 369-374 ◽  
Author(s):  
Hui-Xiao WANG ◽  
Ming-Jiao XUE ◽  
Long-Hua QIN
Keyword(s):  
Yellow River ◽  
Environmental Water ◽  
Water Requirement

Method Development for Including Environmental Water Requirement in the Water Stress Index

2018 ◽  
Vol 32 (5) ◽  
pp. 1585-1598 ◽  
Author(s):  
Pariyapat Nilsalab ◽  
Shabbir H. Gheewala ◽  
Stephan Pfister
Keyword(s):  
Water Stress ◽  
Method Development ◽  
Environmental Water ◽  
Water Requirement ◽  
Stress Index ◽  
Water Stress Index

Study on eco-environmental water requirement in the middle-reach oasis of Shulehe River Basin based on ecological protection target

2017 ◽  
Vol 37 (3) ◽  
Author(s):  
孙栋元 SUN Dongyuan ◽  
杨俊 YANG Jun ◽  
胡想全 HU Xiangquan ◽  
金彦兆 JIN Yanzhao ◽  
张云亮 ZHANG Yunliang
Keyword(s):  
River Basin ◽  
Environmental Water ◽  
Water Requirement ◽  
Middle Reach ◽  
Ecological Protection

scholarly journals Eco-environmental water requirements in Shuangtaizi Estuary Wetland based on multi-source remote sensing data

2018 ◽  
Vol 9 (2) ◽  
pp. 338-346
Author(s):  
Qian Cheng ◽  
Lin fei Zhou ◽  
Tie liang Wang
Keyword(s):  
Remote Sensing ◽  
Remote Sensing Data ◽  
Environmental Water ◽  
Water Requirement ◽  
Water Requirements ◽  
Sensing Data ◽  
Ecological Water Requirement ◽  
Development And Utilization ◽  
Environmental Requirements ◽  
Wetland Resources

Abstract With rapid economic development and expansion of urban boundaries, increasingly damaged wetland resources have seriously threatened the ecosystem. The study of eco-environmental requirements of wetlands is not only the basis of water resources allocation in development and utilization, but also for creating a sustainable system to maintain and improve the overall ecosystem. In this study, we used the Shuangtaizi Estuary Wetland as our study area. The breakdown of wetland cover types was extracted based on multi-source remote sensing data, providing the graphic database for ecological water requirement calculation. According to the characteristics of the Shuangtaizi Estuary Wetland ecosystem, the methods of quantifying the components of ecological water requirements were determined. The results showed that the optimum ecological water requirement of the total wetland was 239 million m3. The minimum, 75th percentile frequency, and 95th percentile frequency water requirements were 670 million m3, 921 million m3, and 1,078 million m3, respectively.

Calculation of Eco-Environmental Water Demand for River Dalinghe

2014 ◽  
Vol 535 ◽  
pp. 276-280
Author(s):  
Lin Fei Zhou ◽  
Qian Zhong ◽  
Zhi Cheng Xi ◽  
Qian Cheng
Keyword(s):  
Environmental Water ◽  
Sediment Concentration ◽  
Water Requirement ◽  
Annual Average ◽  
Evaporative Water ◽  
Monthly Average ◽  
Environmental Function ◽  
Concentration Method ◽  
Consumptive Water ◽  
Environmental Water Demand

According to the characteristics of north river, this paper used the minimum monthly average runoff method, the environmental function setter method and the annual average sediment concentration method to calculate the eco-environmental water requirement of mainstream of River Dalinghe. The results showed that: the non-consumptive water requirement was 4.46×108m3 for Shangwobao Station, 8.87×108m3 for Chaoyang Station, 13.96×108m3 for Yixian Station and 7.26×108m3 for Linghai Station per year; the evaporative water requirement was 0.019×108m3, and the leakage water requirement was not taken into account in the consumptive water requirement. The eco-environmental water requirement of mainstream of River Dalinghe can not be satisfied basically, the management department should control the disposal of sewage strictly for it.

scholarly journals Assessing the Effect of Incorporating Environmental Water Requirement in the Water Stress Index for Thailand

2018 ◽  
Vol 11 (1) ◽  
pp. 152
Author(s):  
Pariyapat Nilsalab ◽  
Shabbir Gheewala
Keyword(s):  
Water Stress ◽  
Water Scarcity ◽  
Water Allocation ◽  
Environmental Water ◽  
Water Requirement ◽  
Stress Index ◽  
Critical Threshold ◽  
Lower Priority ◽  
Water Stress Index ◽  
Result Interpretation

Human and environmental demands for water are both important; therefore, two approaches are proposed for assessing water scarcity using the water stress index. In one of them, the human demand for water explicitly includes environmental water as one of the components (WSIe1), whereas in the other, environmental water is explicitly reserved by subtracting it from the water availability (WSIe2). The results obtained from using the two approaches in the case of Bang Pakong watershed correspondingly contribute to the explanation of the existing stress situation, especially in the dry season. The stressful results were noticed during December to February for both approaches as a result of less available water and higher environmental water requirement. The assessment of environmental water requirement (EWR) in this study was quantified according to low and high flow periods. The two approaches perform well for assessing water scarcity in the Bang Pakong watershed; however, the result interpretation using the WSIe1 approach is more serious than the WSIe2 approach in terms of water scarcity potential beyond the critical threshold. In conclusion, priority of water allocation is the key consideration for selecting the approach. Higher priority for the environment favors the use of WSIe2 for policy making whereas for a lower priority, the use of WSIe1. In case of Thailand, the WSIe2 approach would be recommended in order to put the EWR as the first priority. Then, water allocation priorities can be rearranged only for human demands for water while the EWR is already safeguarded by setting it aside.

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