Evaluating the agricultural water-use efficiency of the Yellow river basin basing on SBM-Undesirable model

doi:10.14088/j.cnki.issn0439-8114.2021.20.035

Abstract

Abstract: Based on the SBM-Undesirable model, the dynamic changes of agricultural water-use efficiency and the optimization path of agriculturalwater-use in the Yellow river basin from 2009 to 2017 were studied. The results showed that the agricultural water-use efficiency of the Yellow river basin was higher than the national level, but the water-use efficiency of it has dropped by a larger margin; the average efficiency of the yellow river upper and middle reaches, the middle and lower reaches and the overall basin were 0.722, 0.855, 0.781, respectively, the efficiency in the upper and middle reaches were low and the decline ismore significant; The efficiency of Qinghai, Shandong, Shaanxi and Sichuan were 1,the water-use efficiency of Shanxi was higher, but there was a potential risk of decline. Gansu, Ningxia, and Henan have lower efficiency. Inner Mongolia has the lowest agricultural water-use efficiency and the greatest water-saving potential. According to the clustering results of agricultural water-use efficiency and pollution degree, Gansu,Ningxia and Inner Mongolia belong to the low-efficiency-low-pollution type, Henan was the low-efficiency-high-pollution type, Qinghai, Shanxi, Shaanxi and Sichuan were the high-efficiency-low-pollution type of area, and Shandong belonged to the high-efficiency-high-pollution type, different types of areas should adopt different agricultural water-use optimization policies.

Key words: Yellow river basin, agriculture water-use efficiency, SBM-Undesirable model, undesirable output

CLC Number:

F323.21

LI Hong-yan, FU Jun-yi, ZHANG Xing-hua. Evaluating the agricultural water-use efficiency of the Yellow river basin basing on SBM-Undesirable model[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(20): 171-178.

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