Groundwater level declines in Tianjin, North China: climatic variations and human activities

Renjie Qin (), Qiuyang Song (), Yonghong Hao () and Guanghong Wu ()
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Renjie Qin: Tianjin Normal University
Qiuyang Song: Tianjin Normal University
Yonghong Hao: Tianjin Normal University
Guanghong Wu: Tianjin Normal University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2023, vol. 25, issue 2, No 38, 1899-1913

Abstract: Abstract The North China Plain faces increasing pressure on fresh water resources due to economic development and climate variations. The effects of climate variations and human activities on the groundwater system in Tianjin, Northern China, were analyzed using an autoregressive integrated moving average model. Our result showed that the groundwater dynamics were influenced by climatic factors and that human activities gradually played a dominant role in the increasing groundwater withdrawal. During the period of 1950–2010, there were no significant trends in annual and wet season precipitation based on Mann–Kendall tests at the 5% significance level. Surface air temperature significantly increased, but potential evapotranspiration and phreatic water evaporation were not significantly changed. The effect of precipitation on groundwater-level fluctuation was decreasing, and the groundwater level declines mainly resulted from the groundwater withdrawal in Tianjin. Sustainable management of groundwater resources in the North China Plain will largely hinge on sustainable management of groundwater withdrawal, especially the efficient use of water for agriculture production.

Keywords: Groundwater level, Precipitation; groundwater extraction, Autoregressive integrated moving average (ARIMA), Trend analysis, Land use land cover (LULC) (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s10668-022-02116-w

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