Assessing the crop production water footprint in Shandong Province of China

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Cao, X.C.^1 ; Chen, D.^1 ; Tang, S.H.^2 ; Guo, X.P.^1

College of Agricultural Engineering, Hohai University, Nanjing

210098, China^1

Lianshui Water Conservancy Research Station, Huai'An, 223200, China^2

关键词: Agricultural water;    Arid and semi-arid regions;    Crop production;    Cultivated lands;    Irrigation rates;    Regional economic development;    Shandong province;    Water footprint;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052036/pdf
DOI  :  10.1088/1755-1315/189/5/052036

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Water scarcity is the major limiting factor to crop production in arid and semi-arid regions. The crop production water footprint (CPWF) and its influence factors of Shandong province during 1996-2015 was calculated and revealed in current paper. The results showed that the annual CPWF of the province was 173.1 G m3, blue, green and grey water footprint accounted for 12.7%, 64.6% and 22.7% respectively. The water footprint of grain and fruit crops accounted for more than 80% of the total water footprint. The two decided the changes in the water footprint of the study area. The CPWF intensity of the province was 2329.2 mm and showed a decreasing trend over time. The planting structure and the degree of regional economic development can directly affect the crop sowing water footprint of regional crops, in which the control of the proportion of high water consumption crops and the irrigation rate of cultivated land is an effective means for its near regulation. The results of this study can provide reference for regional agricultural water resources management.