Abstract
The ecological protection and high quality development of the Yellow River Basin has become a major national strategy in China. Studying the water use efficiency of important water source conservation areas in the upper reaches of the Yellow River is for promoting the allocation of water resources and regional green development. This paper takes 39 county units as the research object, based on the DEA (SE-SBM) model. Introducing the Human Green Development Index (HGDI) was applied to measure its water use efficiency and analyze its spatial pattern.
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