Land Use Ecosystem Services And Ecological Safety Evaluation In Liaoning

With the rapid development of China’s economy and acceleration of the urbanization process, urban land area was bound to increase, land use structure and the layout change of the land should affect the structure of the entire ecosystem and changed the value of land ecosystems.Changes in land ecosystem function will inevitably affect the ecological security of land. Taking Liaoning Province as the research area, select Liaoning Province 2001-2013 land use data and relevant economic data to study the land use change and the impact on ecosystem services in Liaoning, combined with PSR model, land ecological pressure, state, response to build evaluation index system for evaluating land ecological security. Ecological security of land in Liaoning province were evaluated and the following results:(1) 2001-2013, farmland, woodland, grassland and construction land in Liaoning increased the overall performance trends; garden, waters and unused land showed a decreasing trend, a greater reduction in amplitude unused land.(2) 2001-2013, the total volume of the performance of ecosystem services was continuing to increase. Among them, the entire forest ecosystem services dominated the total value,followed by was water and arable land. The total value of ecosystem services in Liaoning Province showed an upward trend.(3) 2001-2013, the overall trend of ecological security of land in Liaoning Province was upward. In 2001, the comprehensive ecological security was 0.807; in 2004, comprehensive ecological security value was 0.809; in 2008, comprehensive ecological security value was 0.842 in Liaoning Province; in 2013, comprehensive ecological safety was 0.846; 2001,2004,2008and2013 annual ecological were IV grade level and in good ecological security level.2001-2013, the overall trend of ecosystem services and ecological security were upward.This was mainly due to the farmland and woodland increased, rapid economic development and the acceleration of urbanization process, and the natural population growth rate decreased year by year. The per capita arable land was increasing year by year, farmers’ per capita net income also increased, while the government has increased the investment in ecological environment land resources and people’s strengthening awareness of protecting the environment.