Land use scenario simulation of mountainous districts based on Dinamica EGO model |
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| Institution: | College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100000,China;College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100000,China;College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100000,China |
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| Abstract: | Mountainous area makes up 22% of global land, and rational land use in this area is important for sustainable development. Mentougou district has been positioned as an ecological conservation development zone of Beijing and significant land use changes have taken place since 2004. With the combination of GIS and Dinamica EGO(Environment for Geoprocessing Objects) model, the quantitative structure and spatial distribution of land use in Mentougou from 2006 to 2014 are analyzed in this paper. Considering topography has influence on the action mode of driving factors, the research area is divided into two parts based on elevation, mountainous area above 300 m, plain and shallow mountainous area below 300 m. Based on cellular automata theory, the probability of land use change is calculated by Weights of Evidence method and the spatial distribution of land use is simulated by means of two complementary spatial transition functions: Expander and Patcher. Land use pattern of Menougou in 2030 for three kinds of scenarios: trend development, rapid development and ecological protection are simulated. The comparison shows that the trend development scenario is more reasonable based on social, economic and environmental considerations and other scenarios provide a reference for improving irrational land use. |
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