The impact of increasing land productivity on groundwater dynamics: a case study of an oasis located at the edge of the Gobi Desert

被引：7
|
作者：
Wu Lei [1 ]
Li Changbin [1 ]
Xie Xuhong [1 ]
He Zhibin [2 ]
Wang Wanrui [3 ]
Zhang Yuan [1 ]
Wei Jianmei [1 ]
Lv Jianan [1 ]
机构：
[1] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, 222 South Tainshui Rd, Lanzhou 730000, Gansu, Peoples R China
[2] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Natl Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
来源：
CARBON BALANCE AND MANAGEMENT | 2020年 / 15卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Oasis water utilization; Regional AET; Groundwater responses; Shiyang River Basin; NET PRIMARY PRODUCTION; INLAND RIVER-BASINS; WATER-RESOURCES; CLIMATE-CHANGE; SURFACE-WATER; HEXI CORRIDOR; MANAGEMENT; EVAPOTRANSPIRATION; CHINA; EVAPORATION;
D O I：
10.1186/s13021-020-00142-7
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Background Intensification of agricultural systems may result in overexploitation of water resources in arid regions because enhanced productivity of crops is often associated with increased actual evapotranspiration (AET). The aim of this study was to quantify the effect of increased regional AET on the groundwater level in a case study of the oasis located within the Shiyang River Basin near the edge of the Gobi Desert. Result The results of the study show that regional AET increased during the period from 1981 to 2010 due to increasing oasis area and air temperature. The water losses due to AET exceeded the water supply from the mountainous discharges of the basin by the end of this period, leading to groundwater overexploitation in the oasis area. Conclusions This case study shows the importance of considering the effect of climate change on water losses associated with increasing agricultural production for the sustainable agricultural development of arid regions.
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收藏
页数：13
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