Effects of gravel–sand mulch, plastic mulch and ridge and furrow rainfall harvesting system combinations on water use efficiency, soil temperature and watermelon yield in a semi-arid Loess Plateau of northwestern China

2011 ◽  
Vol 101 (1) ◽  
pp. 88-92 ◽  
Author(s):  
Yajun Wang ◽  
Zhongkui Xie ◽  
Sukhdev S. Malhi ◽  
Cecil L. Vera ◽  
Yubao Zhang ◽  
...  
2009 ◽  
Vol 96 (3) ◽  
pp. 374-382 ◽  
Author(s):  
Yajun Wang ◽  
Zhongkui Xie ◽  
Sukhdev S. Malhi ◽  
Cecil L. Vera ◽  
Yubao Zhang ◽  
...  

PLoS ONE ◽  
2017 ◽  
Vol 12 (9) ◽  
pp. e0185705 ◽  
Author(s):  
Wei Zheng ◽  
Meijuan Wen ◽  
Zhiyuan Zhao ◽  
Jie Liu ◽  
Zhaohui Wang ◽  
...  

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 632
Author(s):  
Weinan Lu ◽  
Wenxin Liu ◽  
Mengyang Hou ◽  
Yuanjie Deng ◽  
Yue Deng ◽  
...  

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.


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