[1] Nanjing Normal Univ, Sch Geog, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Forestry Univ, Coll Forestry, Nanjing 210037, Jiangsu, Peoples R China
[3] Nanjing Normal Univ, Minist Educ, Key Lab Virtual Geog Environm, Nanjing 210023, Jiangsu, Peoples R China
[4] Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Jiangsu, Peoples R China
[5] State Key Lab Cultivat Base Geog Environm Evolut, Nanjing 210023, Jiangsu, Peoples R China
[6] Suzhou Stn Farmland Qual Protect, Suzhou 215000, Peoples R China