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With the deterioration of the global ecology, the eco-environment fragility has been an important topic of the ecological environment research. The Northwest Yunnan is a typical area of abundant biological resources and vulnerable ecological environment. The ecological environment vulnerability is more initiated by the human disturbances except its special natural basic factors such as the geological structure, the terrain ,the geomorphology, the climate and hydrology conditions and so on. The paper analyses the human disturbances factors which impress the ecological environment vulnerability of the region from the negative interferences and positive interferences in order to enhance the research of the ecological environment to protect the ecological environment better in this area.


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