Based On The Models Of InVEST To Research The Relationship Of LUCC And Ecosystem Services Of Xilin Gol Grassland

In this paper, depending on remote sensing data sources of Xilin Gol Grassland in 2000 and 2013 years, interpreting two map of land use/land cover, and established the land use transfer matrix, to explore the relationship between the change of land use/land cover with ecosystem services, application InVEST model to assess regulating services and support services in habitat quality and carbon storage, the results showed that:(1) Through the analysis of land use transition matrix shows that the land area of grassland, woodland and urban construction have increased, respectively increase of 151.16×104hm2,36.15×104hm2 and 3.63×104hm2, the percentage increase of 10.01%,54.09% and 2.87%; the area of water, arable land and unused land decreased, decreased by 177.49×104hm2,1.21×104hm2 and 10.81×104hm2, the percentage reducing was 89.21%,4.66% and 15.83%.(2) According to the criteria of classification of MA, ecosystem services was devided into supply services, regulate services, support services and cultural services. Grass yield was selected as index in the study of supply services, by analysing the NPP of 2000-2010, grass yield was increasing with dynamic trend; To study the regulate service through by selecting the indicator of biodiversity, applicated the diversity module of InVEST to assess the level of habitat quality, comparative analysis shows that habitat quality is gradually improving, it is good for developing biodiversity, and improving the ability of regulate services; Carbon stored as index of support services, application carbon storage module of InVEST to research soil carbon storage at different levels of 2000 and 2013, the results show that all levels of carbon stocks in 2013 has increased compared to 2000, indicating that there has a consolidation of ecosystems support services; cultural services, the fastest-growing was tourism industry, the number of tourism increased year by year, to promote the development of regional cultural services. (3)land use/land cover changes affect ecosystem service. Grassland area was increase and unused land and agricultural land was reducted, making the prairie land use structure is becoming more rational, so as to enhance the level of supply services, regulating services, support services and cultural service, also promote the economic development of region. (4) spatial and temporal changes of land use in the ecological impact of the level of service system, so rational land use planning and scientific layout in favor of grassland ecosystems toward sustainable direction.