Study On The Relationship Between Human Disturbance Effect And The Ecological Service Value Around The Ebinur Lake

The Ebinur Lake Wetland edge have natural environment features and unique ecological functions, since 1950 s, the lake area is shrinking and dry lakebed exposed to the surface in a large area, being one of the domestic four biggest sources of dust under the wind force from the mouth of Ala Mt., which has affected largely the local and the Northern Slope Economic Zone of Tianshan Mountain and the eastern region environment.Taking the wetland around the Ebinur Lake as the research object in the dissertation, a set of comprehensive evaluation index system of the disturbance established through field investigation and data analysis; the intensity of human disturbance is obtained by the entropy weight method and linear weighted method at the study area in the years of 1990, 2000 and 2010; At the same time, taking the TM/ETM+ remote sensing images and land use, economic statistical data as the data source and research results of Constanza, Xie Gaodi etc. in reference, the ecological service value of the three times was calculated; finally, the dissertation explored the relationship between the two factors, based on the quantitative analysis result of intensity of human disturbance and ecosystem service value. Conclusions detailed as follows:(1) Analysis on the intensity of human disturbance in the study area: during the period of 1990-2010, the intensity of human disturbance is gradually increasing overall. From 1990 to 2000, its growth is a little slower than the year of 2000 and later. Reflects the intensity of human disturbance in the study area of the society,economy, land, landscape of the four factors are on the rise. The land level influence is the most during the year of 1990 and 2000 and the economic level influence in2010 reaches its height.(2)The changed structure of ecological service value in the study area:comprehensive value of ecosystem services in three periods is reducing gradually.Based on the analysis on each single ecosystem function, the service value of ecosystem is far greater than the production value of ecosystem at the margin of wetland; but each the whole eco-service function is in declines, which are provided by ecological system.(3)The relationship between human interference and ecological service value: in experiment period, human interference intensity in the study area keeps sameincreasing as in the watershed. During the period of 1990-2000, the human disturbance has a small effect on the landscape value of ecosystem services; but human disturbance effect increased largely during 2000-2010. As a reflection of the eco influence on the whole watershed, human disturbance effect takes a certain rule in each ecosystem service value at the experiment wetland area, especially influence more on the food production and raw material production of the ecosystem service.The wetland and grassland ecological system provide service in an important position in the ecological system of the study area. so, local area should pay more attention to the protection of wetland and grassland ecosystem in development,to mitigate the ecological service functions of decreasing trend, and to slow down the environmental degradation.