9U.K.Banerjee,Smriti Kumari,S.K.Paul,S.Sudhakar.Remoe Sensing and GIS based ecotourism planning:A case study forwestern Midnapore,West Bengal,India,2002,(4):324-331. 被引量:1
10Desmet P J J,Gocersg.A.GIS procedure forauto-matically calculating the useless factor on topographically complex landscape units[J].Journal of Soil and Water Conversation,1996,(5):427-433. 被引量:1