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Characteristics of Groundwater Recharge on the North China Plain
Author(s) -
Tan XiuCui,
Wu JingWei,
Cai ShuYing,
Yang JinZhong
Publication year - 2013
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/gwat.12114
Subject(s) - groundwater recharge , depression focused recharge , groundwater , hydrology (agriculture) , evapotranspiration , environmental science , water table , overexploitation , groundwater model , tracer , aquifer , geology , ecology , geotechnical engineering , physics , nuclear physics , biology
Groundwater recharge is an important component of the groundwater system. On the North China Plain ( NCP ), groundwater is the main water supply. Because of large‐scale overexploitation, the water table has declined, which has produced severe adverse effects on the environment and ecosystem. In this article, tracer experiment and watershed model were used to calculate and analyze NCP groundwater recharge. In the tracer experiment, average recharge was 108 mm/year and recharge coefficient 0.16. With its improved irrigation, vegetation coverage and evapotranspiration modules, the INFIL 3.0 model was used for calculation of groundwater recharge. Regional modeling results showed an average recharge of 102 mm/year and recharge coefficient 0.14, for 2001–2009. These values are very similar to those from the field tracer experiment. Influences in the two methods were analyzed. The results can provide an important reference for NCP groundwater recharge.