| Semi-arid regions'fragile eco-environment, changeing in land-use types for the maintenance of ecosystem services will play a decisive role, researching the type of land use changing under the change of ecosystem services is important With the development of the western region of the land use structure of the required significant land-use value of ecosystem services, improving people's awareness of ecological protection, and further optimizing the structure and layout of land use. County land-use practice of the strong results of the implementation of the policy reflected in the most direct, the value of its ecosystem services, contribute to the recent observation of land use structure and layout is reasonable. Huhhot Hollinger as the suburban counties as well as building national ecological demonstration counties, one of the last decade the larger land-use change, resulting changes in the regional ecological environment is also very remarkable. Therefore, the land value of ecosystem services Change Hollinger County for the maintenance of ecological balance of land, improve land use efficiency, promote economic and environmental development of great significance.This study estimated the 1997-2007 Hollinger County land use in the value of ecosystem services. Combination in the study and the actual situation of Hollinger County, set up a set of suitable land Hollinger County the value of ecosystem services assessment system, Separately on the farmland, woodland, grassland, water and land for settlements and industrial land use types of five kinds of food production and function of the value of raw materials, eco-tourism function of the value of the value of water conservation features, and maintain soil function value, functional value to clean up the air, waste disposal function maintenance of biodiversity values and conduct an assessment of the value function. In the assessment methods used on the market value of the principal Act, the shadow price method, the shadow project method, the opportunity cost method, cost method reforestation, carbon tax, industrial oxygen method, the cost to restore law and so on, have also taken into account, such as people Heights Research results.The results show that: (1) Overall, 1997-2007 Hollinger County Land value of ecosystem services has a direct trend on a yearly basis, the value of indirect services displayed "after minus before by" trends. Between 1997-2003 indirect ecological value of land on a yearly basis, by 2003 the value of indirect services $668249.19×104 Maximum of 2003-2007 years, the land of ecological value indirectly gradually decline, falling to four years for land use value of ecosystem services reduced indirect $7044.36×104.(2) 1997-2007 years Hollinger county land-use value of ecosystem services in the purification of air and water conservation value of the services the most, followed by the value of waste disposal services and the maintenance of biological diversity, food production and the value of raw materials is growing quickly.(3) Analysis of changes in land-use types and land-use value of ecosystem services to changes in the indirect relationship between, we can see that the changes in land-use types are affected indirectly, a major factor in the value of Service, 1997-2007 Hollinger County Land Use Department adjustment period, the ecosystem service value of indirect land use change and have a good degree of agreement.(4) and Hollinger County land in 1997 the value of ecosystem services for the GDP of 16.42 times the multiple of year-on-year decrease to 0.72 times in 2007. Overall, the study period and Hollinger County's economic development and ecosystem services has a negative correlation between. Hollinger the same period in contrast to the ecological value of the county and economic development can be seen that the growth rate of the value of ecosystem services lagged far behind economic growth, even at the expense of some time the cost of the ecological environment to seek economic development. The article recommends that we should pay attention to the ecological environment construction for harmony economic, social and ecological in the pursuit of economic growth... |
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