Located on the mountainous western edge of Beijing Municipality,Mentougou District is renowned for its breathtaking natural landscapes and rich cultural heritage.On 22 June,I had the opportunity to visit the district,...Located on the mountainous western edge of Beijing Municipality,Mentougou District is renowned for its breathtaking natural landscapes and rich cultural heritage.On 22 June,I had the opportunity to visit the district,nearly two years after it was struck by a catastrophic flood that left widespread destruction in its wake.My visit provided a unique opportunity to observe the ongoing recovery e!orts and evaluate how the district has leveraged coordinated planning,technology and the resilience of its people to rebuild.The purpose of the visit was to witness these recovery e!orts firsthand and gain insight into the strategies that have helped Mentougou overcome the lingering e!ects of this environmental disaster.展开更多
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 Beiji...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.展开更多
文摘Located on the mountainous western edge of Beijing Municipality,Mentougou District is renowned for its breathtaking natural landscapes and rich cultural heritage.On 22 June,I had the opportunity to visit the district,nearly two years after it was struck by a catastrophic flood that left widespread destruction in its wake.My visit provided a unique opportunity to observe the ongoing recovery e!orts and evaluate how the district has leveraged coordinated planning,technology and the resilience of its people to rebuild.The purpose of the visit was to witness these recovery e!orts firsthand and gain insight into the strategies that have helped Mentougou overcome the lingering e!ects of this environmental disaster.
基金supported by the National Natural Science Foundation of China under(Grant No.41877533)Beijing Social Science Foundation(Grant No.18GLB014)
文摘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.
