Next Article in Journal
Experimental Analysis on Pressure Fluctuation Characteristics of a Centrifugal Pump with Vaned-Diffuser
Previous Article in Journal
Monitoring of Cyanobacteria in Water Using Spectrophotometry and First Derivative of Absorbance
Article

Water-Scarcity Footprint Associated with Crop Expansion in Northeast China: A Case Study Based on AquaCrop Modeling

by 1,2, 3, 3,* and 1,*
1
College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
2
Beijing Research Center for Information Technology in Agriculture, Beijing 100097, China
3
College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
*
Authors to whom correspondence should be addressed.
Water 2020, 12(1), 125; https://doi.org/10.3390/w12010125
Received: 21 November 2019 / Revised: 16 December 2019 / Accepted: 27 December 2019 / Published: 30 December 2019
(This article belongs to the Section Water Use and Scarcity)
In recent decades, China’s crop production experienced a spatial shift, and this shift may significantly influence the national water resources due to the geographical mismatch between water resources and cropland. By applying the widely applied AquaCrop model, this study quantified the impact of grain crop (rice and maize) expansion in northeastern China on the country’s water resources. We found that the production of rice and maize increased by 60% and 43%, respectively, in the northeast, whereas the water scarcity-footprint (WSF) increased by 200% and 125%. Using sensitivity analysis, we found that the increase in the WSF was mainly caused by the increase in regional water scarcity, as reflected by a water scarcity index, and by the increase in production. To alleviate regional water scarcity, crop expansion into regions that experience high water stress should be constrained. A detailed reassessment of this situation is urgently needed. View Full-Text
Keywords: crop expansion; water scarcity; water consumption; environmental relevance crop expansion; water scarcity; water consumption; environmental relevance
Show Figures

Figure 1

MDPI and ACS Style

Huai, H.; Chen, X.; Huang, J.; Chen, F. Water-Scarcity Footprint Associated with Crop Expansion in Northeast China: A Case Study Based on AquaCrop Modeling. Water 2020, 12, 125. https://doi.org/10.3390/w12010125

AMA Style

Huai H, Chen X, Huang J, Chen F. Water-Scarcity Footprint Associated with Crop Expansion in Northeast China: A Case Study Based on AquaCrop Modeling. Water. 2020; 12(1):125. https://doi.org/10.3390/w12010125

Chicago/Turabian Style

Huai, Heju, Xin Chen, Jing Huang, and Fu Chen. 2020. "Water-Scarcity Footprint Associated with Crop Expansion in Northeast China: A Case Study Based on AquaCrop Modeling" Water 12, no. 1: 125. https://doi.org/10.3390/w12010125

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop