Journal article

Intensive rice agriculture deteriorates the quality of shallow groundwater in a typical agricultural catchment in subtropical central China

Yi Wang, Yuyuan Li, Yong Li, Feng Liu, Xinliang Liu, Dianlin Gong, Qiumei Ma, Wei Li, Jinshui Wu

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | SPRINGER HEIDELBERG | Published : 2015

Abstract

High nitrogen (N) concentrations in rural domestic water supplies have been attributed to excessive agricultural N leaching into shallow groundwater systems; therefore, it is important to determine the impact of agriculture (e.g., rice production) on groundwater quality. To understand the impact of agricultural land use on the N concentrations in the shallow groundwater in subtropical central China, a large observation program was established to observe ammonium-N (NH4-N), nitrate-N (NO3-N), and total N (TN) concentrations in 161 groundwater observation wells from April 2010 to November 2012. The results indicated that the median values of NH4-N, NO3-N, and TN concentrations in the groundwat..

View full abstract

Grants

Awarded by National Basic Research Program of China


Awarded by National Natural Science Foundation of China


Awarded by Key Program of the Chinese Academy of Sciences


Funding Acknowledgements

The authors appreciate the financial support for this study provided by the National Basic Research Program of China (2012CB417105), National Natural Science Foundation of China (41201220), and the Key Program of the Chinese Academy of Sciences (KZZD-EW-11). The authors would also like to thank Mr. Weidong Zhang for his contribution to the field work. We are indebted to the anonymous reviewers and the associated editor, Dr. Philippe Garrigues, for their valuable criticisms and comments that led to substantial improvements of this paper.