Research On Optimization Of Land Use Structure Based On Ecosystem Service Value

Ecosystem provides important guarantee for the survival and development of mankind, and the land is the basic carrier of terrestrial ecosystem. The change of land use structure affects the ecosystem service function. Studying the relationship between the change of land use types and ecosystem services value is of great significance for policymakers to make the optimization of land use structure.This paper analyzes ecological system service value of Chongren county during 2005-2013 based on the theory of the optimization of land use structure and the ecosystem services. Comparing the degree of influence of each land types in Chongren County on the ecosystem services value using grey relational degree analysis. Then, using the GM(1,1), moving average and exponential smoothing prediction to predict the value of ecosystem services, calculating the Chongren County ecological system service value of 2014-2020. Finally, using the linear programming model put forward the optimization scheme of land use in Chongren county by setting the variables in the model, the objective function and the restrict condition.Research shows that: the total value of ecosystem services decreased during 2005-2013 in Chongren county. The value reduce the 7262900 yuan during the 8 years. The effects of land use types of ecosystem service value is different and the effect of the forest land is very important. Using the grey system GM(1,1) model, moving average and exponential smoothing predict the total value of ecosystem services of Chongren County in 2020. The value of 5298.2099 million yuan in 2020 year comparation with 5302.3176 million yuan in 2005 year is decreased. So it is necessary to carry out the optimization of land use structure. Proposing the land use optimization scheme of Chongren county through the linear programming model. Increasing the value of ecosystem services through the optimization of land use.