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Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (31): 105-112.doi: 10.11924/j.issn.1000-6850.casb2021-1071

Special Issue: 现代农业发展与乡村振兴

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Evaluation of Agricultural Water Use Efficiency in the Yellow River Basin Based on Undesirable Output of Grey Water Footprint

WANG Chujue1(), LI Ang2, LI Luji1   

  1. 1School of Business, Hohai University, Changzhou, Jiangsu 213022
    2China Institute of Water Resources and Hydropower Research, Beijing 100038
  • Received:2021-11-09 Revised:2022-01-06 Online:2022-11-05 Published:2022-10-27

Abstract:

Under the background of tighter water resource constraints, this paper selects various panel data of agriculture in the Yellow River Basin from 2013 to 2017 from the perspective of grey water footprint, calculates the agricultural water use efficiency of the Yellow River Basin by using the dynamic super efficiency SBM model, and takes the employment of the primary industry, agricultural water consumption, effective cultivated land irrigation area and total power of agricultural machinery as input indicators. Taking the total agricultural output value adjusted according to the price index in 2013 as the desirable output and the grey water footprint as the undesirable output as the output indexes, through the analysis of SBM model, it is found that the total amount of agricultural grey water footprint in all provinces of the Yellow River Basin is decreasing, and the decline rate is increasing after 2015. The agricultural water use efficiency of each province in the Yellow River basin can be divided into three echelons according to whether it is greater than 1 and whether it is greater than 0.5. Except Sichuan, the agricultural water use efficiency of other provinces is rising. Therefore, the Yellow River Basin should pay attention to the management of grey water footprint and reduce the agricultural grey water footprint from the source, and the government should continuously strengthen investment in agricultural irrigation facilities, upgrade water-saving irrigation technology, adjust the industrial structure and improve the utilization rate of farmland irrigation water.

Key words: the Yellow River Basin, agricultural grey water footprint, agricultural water use efficiency, super efficiency SBM model

CLC Number: