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Temporal and spatial distribution of groundwater nitrogen pollution and influence factors in Dahe river catchment in Dianchi watershed
WANG Jia-Yin, ZHANG Shi-Tao, WANG Ming-Yu, QI Chang-Wei
中国科学院大学学报 . 2013, (3): 339 -346 .  DOI: 10.7523/j.issn.1002-1175.2013.03.010