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Article

Spatial–Temporal Evolution Characteristics and Influencing Factors of Agricultural Water Use Efficiency in Northwest China—Based on a Super-DEA Model and a Spatial Panel Econometric Model

1
College of Economics and Management, Northwest A&F University, Taicheng Road, Yangling 712100, China
2
College of International Relations, Xi’an International Studies University, Xi’an 710061, China
*
Author to whom correspondence should be addressed.
Academic Editor: Josue Medellin-Azuara
Water 2021, 13(5), 632; https://doi.org/10.3390/w13050632
Received: 11 January 2021 / Revised: 19 February 2021 / Accepted: 22 February 2021 / Published: 27 February 2021
(This article belongs to the Special Issue Water Management for Agricultural, Environmental and Urban Uses)
Improving agricultural water use efficiency (AWUE) is an important way to solve the shortage of water resources in arid and semi-arid regions. This study used the Super-DEA (data envelopment analysis) to measure the AWUE of 52 cities in Northwest China from 2000 to 2018. Based on spatial and temporal perspectives, it applied Exploratory Spatial Data Analysis (ESDA) to explore the dynamic evolution and regional differences of AWUE. A spatial econometric model was then used to analyze the main factors that influence the AWUE in Northwest China. The results showed firstly that the overall AWUE in Northwest China from 2000 to 2018 presented a steady upward trend. However, only a few cities achieved effective agricultural water usage by 2018, and the differences among cities were obvious. Secondly, AWUE showed an obvious spatial autocorrelation in Northwest China and showed significant high–high and low–low agglomeration characteristics. Thirdly, economic growth, urbanization development, and effective irrigation have significant, positive effects on AWUE, while per capita water resource has a significant, negative influence. Finally, when improving the AWUE in arid and semi-arid regions, plans should be formulated according to local conditions. The results of this study can provide new ideas on the study of AWUE in arid and semi-arid regions and provide references for the formulation of regional agricultural water resource utilization policies as well. View Full-Text
Keywords: agricultural water use efficiency; spatial–temporal evolution; influencing factors; Northwest China; spatial econometric model agricultural water use efficiency; spatial–temporal evolution; influencing factors; Northwest China; spatial econometric model
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MDPI and ACS Style

Lu, W.; Liu, W.; Hou, M.; Deng, Y.; Deng, Y.; Zhou, B.; Zhao, K. Spatial–Temporal Evolution Characteristics and Influencing Factors of Agricultural Water Use Efficiency in Northwest China—Based on a Super-DEA Model and a Spatial Panel Econometric Model. Water 2021, 13, 632. https://doi.org/10.3390/w13050632

AMA Style

Lu W, Liu W, Hou M, Deng Y, Deng Y, Zhou B, Zhao K. Spatial–Temporal Evolution Characteristics and Influencing Factors of Agricultural Water Use Efficiency in Northwest China—Based on a Super-DEA Model and a Spatial Panel Econometric Model. Water. 2021; 13(5):632. https://doi.org/10.3390/w13050632

Chicago/Turabian Style

Lu, Weinan, Wenxin Liu, Mengyang Hou, Yuanjie Deng, Yue Deng, Boyang Zhou, and Kai Zhao. 2021. "Spatial–Temporal Evolution Characteristics and Influencing Factors of Agricultural Water Use Efficiency in Northwest China—Based on a Super-DEA Model and a Spatial Panel Econometric Model" Water 13, no. 5: 632. https://doi.org/10.3390/w13050632

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