黄河流域农业面源污染的演化特征与区域差异
李光勤, 牛雯琦, 王江姣

Characteristics evolution and regional differences of agricultural non-point source pollution in the Yellow River Basin
Guangqin Li, Wenqi Niu, Jiangjiao Wang
图3 2006—2022年黄河流域农业面源COD污染源排放量
Fig.3 Agricultural non-point source COD pollution source emissions in the Yellow River Basin from 2006 to 2022