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土地生产力提高对地下水动态的影响：以戈壁沙漠边缘的一个绿洲为例

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

作者信息

Lei Wu, Changbin Li, Xuhong Xie, Zhibin He, Wanrui Wang, Yuan Zhang, Jianmei Wei, Jianan Lv

机构信息

Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, No. 222 South Tainshui Road, Chengguan District, Lanzhou, 730000, Gansu Province, China.

Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.

出版信息

Carbon Balance Manag. 2020 May 2;15(1):7. doi: 10.1186/s13021-020-00142-7.

DOI:10.1186/s13021-020-00142-7
PMID:32361855
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7333277/
Abstract

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.

摘要

背景

农业系统的集约化可能导致干旱地区水资源的过度开发，因为作物生产力的提高通常与实际蒸散量（AET）的增加有关。本研究的目的是通过对位于戈壁沙漠边缘附近的石羊河流域内的绿洲进行案例研究，量化区域AET增加对地下水位的影响。

结果

研究结果表明，由于绿洲面积和气温的增加，1981年至2010年期间区域AET有所增加。到这一时期结束时，AET造成的水分损失超过了流域山区径流的供水量，导致绿洲地区地下水过度开采。

结论

本案例研究表明，考虑气候变化对与农业生产增加相关的水分损失的影响对于干旱地区可持续农业发展的重要性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/148f2f1e1d6b/13021_2020_142_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/a7537e42bc84/13021_2020_142_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/257dd77ae901/13021_2020_142_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/927c7d530c83/13021_2020_142_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/277a841613c6/13021_2020_142_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/0179c45b6080/13021_2020_142_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/941e4a6a84a1/13021_2020_142_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/d831e52c8d8d/13021_2020_142_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/bd76b7ef7e0d/13021_2020_142_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/7e3ebd9c4f1e/13021_2020_142_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/148f2f1e1d6b/13021_2020_142_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/a7537e42bc84/13021_2020_142_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/257dd77ae901/13021_2020_142_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/927c7d530c83/13021_2020_142_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/277a841613c6/13021_2020_142_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/0179c45b6080/13021_2020_142_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/941e4a6a84a1/13021_2020_142_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/d831e52c8d8d/13021_2020_142_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/bd76b7ef7e0d/13021_2020_142_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/7e3ebd9c4f1e/13021_2020_142_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4586/7333277/148f2f1e1d6b/13021_2020_142_Fig10_HTML.jpg

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