Distribution and pollution risk assessment of nitrogen, phosphorus and organic matter in Puzhehei karst wetland sediments
ZHANG Zixia,LIU Peng,WANG Yan,ZHANG Chao,LIU Yungen,YANG Bo,ZHANG Yefei
Ecology and Environmental Sciences . 2019, (9): 1835 -1842 .  DOI: 10.16258/j.cnki.1674-5906.2019.09.015

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