Abstract:During the last 50 years, human disturbance-induced vegetation heterogeneity an d fragmentation as a result of increasing demand for firewood, timber and food c rops in the residential area of mountains of upper reaches of Yangtse River had received extensive attention. Vegetation and land use mosaics of heterogeneous e cosystems of shrubs land, grassland, farmland and reforested land are characteri stic for residential area of the Wolong nature reserve in Sichuan province. The mosaic of vegetation repres...