Department of Geography;
Capital Normal University;
Beijing 100037;
China;
Water/ Soil Protecting Station of Miyun County;
Beijing 100037;
China;
Department of Chemistry;
Capital Normal University;
Beijing 100037;
China;
密云水库; 蓄水; 中国; 北京; 非点源污染; 富营养化; 氮; 磷;