A holistic approach for evaluating ecological water allocation in the Yellow River Basin of China  

作　　者：YANG Zhifeng CUI Baoshan CHEN He 

机构地区：[1]State Key Laboratory of Environment Simulation and Pollution Control,School of Environment,Beijing Normal University,Beijing 100875,China

出　　处：《Frontiers of Environmental Science & Engineering》2007年第1期99-106,共8页环境科学与工程前沿（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.50239020);the National Key Basic Research and Development(973)Program of China(Grant No.2006CB403303).

摘　　要：The characteristics and sustainable management of water resources on a basin scale require that they should be managed using a holistic approach.In this study,a holistic methodology called the holistic approach in a basin scale(HABS)is proposed to determine the ecological water requirements of a whole basin.There are three principles in HABS.First,ecological water requirements in a basin scale indicate not only the coupling of hydrological and ecological systems,but also the exchange of matter and energy between each ecological type through all kinds of physical geography processes.Second,ecological water requirements can be divided into different types according to their functions,and water requirements of different types are compatible.Third,ecological water requirements are related to a multiple system including water quality,water quantity,and time and space,which interact with each other.The holistic approach in a basin scale was then used in the Yellow River Basin and it suggested that 265.0x108 m3 of water,45%of the total surface water resources,should be allocated to ecological systems,such as rivers,lakes,wetlands and cities,to sustain its function and health.The ecological water requirements of inside river systems and outside river systems were respectively 261.0×10^(8) and 3.65×10^(8)m^(3).

关 键 词：holistic approach ecological flow Yellow River Basin 

分 类 号：P61[天文地球—矿床学]