Effects of HumanInduced Disturbance on the Ecological Restoration in Karst Small Watershed of Southwest China

Ecological restoration is an important ecological security for Karst ecological fragile region to develop social economy. Agricultural production activities, rocky desertification control and land utilization way were the main humaninduced disturbance factors, which affected ecosystem degradation and restoration in Karst small watershed. Based on the previous research on the ecological development and ecological management, made the components of ecosystem and the process of the restoration as the starting point, this paper analyzed the effects of humaninduced disturbance on the vegetation, soil, litter, soil biological structure, function and diversity. Ecological management should pay more attention to constantly maintain and rich ecosystem elements, and strengthen the study of the ecological process and the “integrity” recovery of degraded ecosystem, and then restart and promote ecological restoration in Karst small watershed.