The research of land use change touches upon different spatio-temporal scales,the researches to different spatio-temporal scales solve different problems.The study and analysis of the spatio-temporal rule of land-use change aims to select suitable scale,especially small scale.However,small scale land-use change research is limited by hard data availability,land use data are scarce,especially in loess hilly-gully region.The Participatory Rural Appraisal (PRA) is a method by which we can acquire the basic sit...
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