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丝绸之路经济带横跨我国东部到西部,水土资源的空间分异特征明显,对该区域水土资源的空间分布格局和分异规律进行监测和评价,能有效地引导经济带开发的空间布局。基于GIS空间分析与统计数据定量分析,通过计算研究区各地级市的后备可利用土地资源和水资源进行分析:(1)后备可利用水土资源总量的空间分布特征及其地域分异规律;(2)人均后备可利用水土资源的空间分布格局和资源丰度分异规律;(3)人均后备可利用土地资源与水资源的分布匹配程度,以及区域人均后备可利用水土资源的空间分异规律分析。结果表明:研究区共有后备可利用土地资源309 849.6 km~2,后备可利用水资源1 512.21亿m~3;后备可利用水土资源人均占有量呈现由南往北、由西向东递减的趋势,水土资源空间分布不均,且土地资源与水资源的空间分布不相匹配。
The economic belt of the Silk Road crosses the eastern part of China to the western part of China. The spatial and spatial characteristics of land and water resources are obvious. Monitoring and evaluating the spatial distribution pattern and differentiation of water and land resources in this area can effectively guide the spatial layout of economic belt development. Based on GIS spatial analysis and quantitative analysis of statistical data, the paper analyzes the reserve available land resources and water resources of all prefecture-level cities in the study area: (1) the spatial distribution characteristics of reserve available water and land resources and their regional differentiation; (2) the spatial distribution pattern of land and water resources per capita and the pattern of resource abundance differentiation; (3) the degree of matching of available land resources and water resources per capita, and the spatial differentiation of available water and land resources per capita in the region Regular analysis. The results showed that there were 309 849.6 km ~ 2 reserves of available reclaimed land and 125.121 billion m ~ 3 reserve water resources available for reclamation in the study area. The per capita available water and land resources in the study area showed a decreasing trend from south to north and from west to east, Spatial distribution of land and water resources is uneven, and the spatial distribution of land resources and water resources do not match.