About Yang Shiqi
About 中国農業科学院農業環境与可持続発展研究所,北京,100081
About Xing Lei
About 中国農業科学院農業環境与可持続発展研究所,北京,100081
About Liu Hongyuan
About 中国農業科学院農業環境与可持続発展研究所,北京,100081
About Yang Zhengli
About 中国農業科学院農業環境与可持続発展研究所,北京,100081
About Nongye Gongcheng Xuebao
About sloping land
About prevention of pollution
About nitrogen
About phosphorus
About crop(agriculture)
About watershed
About runoff rate
About run off
About swell
About farm land
About cultivation
About area source of pollution
About 増産
About 土砂
About 慣行栽培
About Agriculture in general
About 傾斜地
About 土壌
About 窒素
About リン
About 損失
About 研究