Analysis on the Process and of Woodland Alteration in the Mountain Areas

In this paper,based on woodland change investigation data of Beijing mountain areas during recent ten years,we analyzed characters of the converting trend of woodland alteration(reduce direction),and the main process and tendency of woodland change.With driving factors analysis method of land use / land cover(LUCC),an index system representing woodland change and main driving forces is proposed,and the driving forces of woodland alteration are analyzed quantitatively.