College of Economics and Management Nanjing Agricultural University Nanjing 210095 P.R.China;
College of Economics and Management Nanjing Agricultural University Nanjing 210095 P.R.China;
China Center for Agricultural Policy School of Advanced Agricultural Sciences Peking University Beijing 100871 P.R.ChinaJiangxi Agricultural University Nanchang 330045 P.R.China;
river chief system; agricultural non-point-source pollution; surface water quality; fertilizer use; livestock and poultry breeding;