[1]Key Laboratory of Nonpoint Source Pollution Control;
Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning;
Chinese Academy of Agricultural Sciences;
Beijing 100081;
P.R.China;
[2]USDA-Agricultural Research Service;
Pasture Systems and Watershed Management Research Unit;
PA 16802;
USA;
[3]Institute of Agro-Environmental Protection;
Ministry of Agriculture;
Tianjin 300191;
P.R. China;
水体富营养化; 土壤环境; 中国北方; 土壤磷; 农艺; 积累; 玉米秸秆还田; 土壤速效磷含量;