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[会议论文] 作者:Hui Gao,Baolong Han,Chuanbin Zhou,Qingfei Li,Xiangchao Cui, 来源:北京师范大学 年份:2016
The essence of urban environmental problem lies in the nutrient unbalance of urban-rural interactions,the characteristics of nutrient retention in urban and depletion in rural have exerted great stres...
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