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 Calculation of targeted eco-environmental water requirements in a dry inland river: a case study of the Yarkand River Basin, Xinjiang, China

2021 ◽  
Vol 3 (6) ◽  
Author(s):  
Aihong Fu ◽  
Weihong Li ◽  
Yi Wang
Keyword(s):  
Water Resources ◽  
River Basin ◽  
Arid Regions ◽  
Riparian Forest ◽  
Environmental Water ◽  
Water Requirements ◽  
Inland River ◽  
Ecological Water Demand ◽  
Ecological Protection

AbstractAnalysis of eco-environmental water requirements along a dry inland river under extreme drought conditions can provide a theoretical basis for the sustained utilization and management of water resources in arid regions. This paper uses the Yarkand River Basin in Xinjiang, China, as a case study to determine and assess a method to calculate targeted eco-environmental water requirements (TEEWR) for different ranges of ecological protection of inland riparian forests. The proposed method is intended to comprehensively analyze the water resources along arid inland rivers. Specifically, the ranges of ecological protection were gradually expanded at intervals of 1 km (or multiples of the smallest distance) away from the river course while the TEEWR was determined as a function of the ecological water demand of riparian forest vegetation (Yec) and its corresponding river loss (Xloss). The developed method was shown to be feasible for analyzing TEEWR in the Yarkand River Basin and thus provides a novel and effective approach for the rational utilization and management of water resources in inland river basins in arid regions.Article Highlights Zones of ecological protection were gradually expanded at intervals of 1 km (or multiples of the smallest distance) away from the river course on both sides of the dry inland river The targeted eco-environmental water requirement, defined as the ecological water demand of riparian forest vegetation (Yec) and its corresponding river loss (Xloss), was determined for a dry inland river basin The developed methods for calculating targeted eco-environmental water requirements are useful, but have limitations.

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

scholarly journals Emergy Analysis and Ecological Spillover as Tools to Quantify Ecological Compensation in Xuchang City, Qingyi River Basin, China

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 414
Author(s):  
Huiqin Li ◽  
Cuimei Lv ◽  
Minhua Ling ◽  
Changkuan Gu ◽  
Yang Li ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
River Basin ◽  
Water Footprint ◽  
Effective Means ◽  
Cost Benefit ◽  
Emergy Analysis ◽  
Ecological Compensation ◽  
Freshwater Resources ◽  
Ecological Protection ◽  
Complex Relationships

As an effective means to coordinate cost–benefit allocation of ecological protection between upstream and downstream cities, ecological compensation is often used to improve collaborative basin-wide freshwater resources management. Yet, due to the complex relationships between upstream and downstream ecosystem services, calculating eco-compensation is not an easy task. We used ecological spillover (the amount of local ecosystem services not used in the region and thus flows to downstream areas) and emergy analysis to determine the amount of eco-compensation that the city of Xuchang should pay to the upstream city of Xinzheng (Qingyi River Basin, China) from 2010 to 2014. Eco-compensation was determined by deducting the emergy of the local, self-supplied ecosystem services of Xuchang City, calculated using an ecological-water-footprint-based analysis, from the emergy of the total ecosystem services used in Xuchang, and monetized accordingly. The results showed that the self-supplied ecosystem services decreased from 2010 to 2014 and, thus, Xuchang relied more on the ecological spillover services flowing from Xinzheng. As a result, eco-compensation increased from 990 million Chinese Yuan (¥) in 2010 to ¥509 billion in 2014, mostly due to increased demands for water purification and reduced precipitation around Xuchang. This method can be further enhanced by introducing larger datasets and can be replicated elsewhere to accurately determine ecological compensation, ensuring basin-wide collaboration towards the sustainable management of freshwater resources.

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

scholarly journals Research on the coordination degree of ecological protection and high-quality development of urban agglomerations in the Yellow River Basin

2021 ◽  
Vol 271 ◽  
pp. 02008
Author(s):  
Jinhui Zhao ◽  
Yunlong Bai ◽  
Chao Zhang ◽  
Jiawei He ◽  
Siyuan Li
Keyword(s):  
River Basin ◽  
Yellow River ◽  
Yellow River Basin ◽  
Variation Method ◽  
The Yellow River ◽  
Quality Development ◽  
High Quality ◽  
Urban Agglomerations ◽  
Ecological Protection ◽  
The Yellow River Basin

The Yellow River Basin is ecologically fragile, the relationship between water and sand is unbalanced and water resources are scarce. This paper takes the urban agglomerations in the Yellow River Basin as the research object, based on the guidelines for the coordinated promotion of ecological protection and high-quality development in the basin, and uses the entropy weight method and the coefficient of variation method as the means to establish a quantitative evaluation system for coordinated development. The degree of synergy is between ecological protection and high-quality development of the urban agglomerations from the time dimension and the space dimension, and we give the optimization directions. The results show that the degree of synergy among urban agglomerations in the river basin is steadily increasing, but there are significant spatial differences in the degree of coordination of ecological protection and high-quality development of the urban agglomerations and the development index of its subsystems. The degree of synergy generally presents a cascade distribution pattern that gradually decreases from east to west and from downstream to upstream. The ecological destruction, economic fluctuations and water waste of the river basin urban agglomeration are the main factors hindering the improvement of synergy.

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