Agriculture intensifies soil moisture decline in Northern China
Abstract
Northern China is one of the most densely populated regions in the world. Agricultural activities have intensified since the 1980s to provide food security to the country. However, this intensification has likely contributed to an increasing scarcity in water resources, which may in turn be endangering food security. Based on in-situ measurements of soil moisture collected in agricultural plots during 1983–2012, we find that topsoil (0–50 cm) volumetric water content during the growing season has declined significantly (p<0.01), with a trend of -0.011 to -0.015 m3 m-3 per decade. Observed discharge declines for the three large river basins are consistent with the effects of agricultural intensification, although other factors (e.g. dam constructions) likely have contributed to these trends. Practices like fertilizer application have favoured biomass growth and increased transpiration rates, thus reducing available soil water. In addition, the rapid proliferation of water-expensive crops (e.g., maize) and the expansion of the area dedicated to food production have also contributed to soil drying. Adoption of alternative agricultural practices that can meet the immediate food demand without compromising future water resources seem critical for the sustainability of the food production system.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1197089
- Report Number(s):
- PNNL-SA-110582
Journal ID: ISSN 2045-2322; KP1703030
- Grant/Contract Number:
- AC05-76RL01830
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scientific Reports
- Additional Journal Information:
- Journal Volume: 5; Journal ID: ISSN 2045-2322
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES
Citation Formats
Liu, Yaling, Pan, Zhihua, Zhuang, Qianlai, Miralles, Diego, Teuling, Adriann, Zhang, Tonglin, An, Pingli, Dong, Zhiqiang, Zhang, Jingting, He, Di, Wang, Liwei, Pan, Xuebiao, Bai, Wei, and Niyogi, Dev. Agriculture intensifies soil moisture decline in Northern China. United States: N. p., 2015.
Web. doi:10.1038/srep11261.
Liu, Yaling, Pan, Zhihua, Zhuang, Qianlai, Miralles, Diego, Teuling, Adriann, Zhang, Tonglin, An, Pingli, Dong, Zhiqiang, Zhang, Jingting, He, Di, Wang, Liwei, Pan, Xuebiao, Bai, Wei, & Niyogi, Dev. Agriculture intensifies soil moisture decline in Northern China. United States. doi:10.1038/srep11261.
Liu, Yaling, Pan, Zhihua, Zhuang, Qianlai, Miralles, Diego, Teuling, Adriann, Zhang, Tonglin, An, Pingli, Dong, Zhiqiang, Zhang, Jingting, He, Di, Wang, Liwei, Pan, Xuebiao, Bai, Wei, and Niyogi, Dev. Thu .
"Agriculture intensifies soil moisture decline in Northern China". United States. doi:10.1038/srep11261. https://www.osti.gov/servlets/purl/1197089.
@article{osti_1197089,
title = {Agriculture intensifies soil moisture decline in Northern China},
author = {Liu, Yaling and Pan, Zhihua and Zhuang, Qianlai and Miralles, Diego and Teuling, Adriann and Zhang, Tonglin and An, Pingli and Dong, Zhiqiang and Zhang, Jingting and He, Di and Wang, Liwei and Pan, Xuebiao and Bai, Wei and Niyogi, Dev},
abstractNote = {Northern China is one of the most densely populated regions in the world. Agricultural activities have intensified since the 1980s to provide food security to the country. However, this intensification has likely contributed to an increasing scarcity in water resources, which may in turn be endangering food security. Based on in-situ measurements of soil moisture collected in agricultural plots during 1983–2012, we find that topsoil (0–50 cm) volumetric water content during the growing season has declined significantly (p<0.01), with a trend of -0.011 to -0.015 m3 m-3 per decade. Observed discharge declines for the three large river basins are consistent with the effects of agricultural intensification, although other factors (e.g. dam constructions) likely have contributed to these trends. Practices like fertilizer application have favoured biomass growth and increased transpiration rates, thus reducing available soil water. In addition, the rapid proliferation of water-expensive crops (e.g., maize) and the expansion of the area dedicated to food production have also contributed to soil drying. Adoption of alternative agricultural practices that can meet the immediate food demand without compromising future water resources seem critical for the sustainability of the food production system.},
doi = {10.1038/srep11261},
journal = {Scientific Reports},
number = ,
volume = 5,
place = {United States},
year = {2015},
month = {7}
}
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