Construction of Land Ecological Sustainable Evaluation System Based on Dynamic Simulation and TOPSIS Model

Abstract

Land has always been the resource on which human beings depend for survival and development, which not only provides space for survival but also is the fundamental source of productivity. With the development of commercialization and urbanization, land resources have been destroyed. As a basic living resource, sustainable land use is particularly important. According to the actual situation of regional resource conditions, with the help of TOPSIS model and dynamic simulation, the land ecological evaluation system is established, and the ecological sustainable development is carried out in the whole country, and the research on land greening is deepened. The results show that (1) the economic level of sustainable utilization of land resources has been continuously improved, from 0.15 to 0.38 in the main urban area, from 0.12 to 0.36 in the commercial area, from 0.1 to 0.37 in the suburbs, from 0.11 to 0.38 in the towns, and from 0.25 to 0.5 in the countryside, to provide economic support for ecological protection. (2) According to the use area of relevant land types, forest land and cultivated land occupy the largest with 32830 hm and 13953 hm, respectively, which are the largest usable areas and the most important resources for ecological protection. (3) In the calculation of future ecological construction area by relevant models, the overall coordination control is obtained from the initial high prediction judgment of 0.552 to 0.888. (4) From different development evaluation angles, the economic angle has always provided the greatest support for ecological protection, and its high-level dependence level value is as high as 0.72, compared with 0.55 and 0.6 from the social angle and environmental angle, so the sustainable ecological protection construction needs a lot of economic support.