School of Economics and Management Northeast Agricultural University Harbin 150030 P.R.ChinaNortheast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun 130102 P.R.China;
School of Pubilc Adminstration and Law Northeast Agricultural University Harbin 150030 P.R.ChinaNortheast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun 130102 P.R.China;
Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun 130102 P.R.China;
School of Pubilc Adminstration and Law Northeast Agricultural University Harbin 150030 P.R.China;
School of Pubilc Adminstration and Law Northeast Agricultural University Harbin 150030 P.R.China;
School of Pubilc Adminstration and Law Northeast Agricultural University Harbin 150030 P.R.China;
School of Pubilc Adminstration and Law Northeast Agricultural University Harbin 150030 P.R.China;
fllowed paddy fields; Landsat 8; Sanjiang Plain; Google Earth Engine; water security;