忻州市土地利用现状的环境敏感区分析

Analysis on environmental sensitive areas a for land use status in Xinzhou City

随着新一轮土地利用规划修编展开,针对忻州市土地利用存在的环境问题,利用调查资料和相关研究成果,有效管理土地利用空间向环境敏感地区伸展,减缓环境敏感地区的环境压力和生态胁迫,为市域土地利用方式和分区方案制定提供环境敏感性依据.从规划方案与面临的土地生态问题入手,划分生态环境、水源保护、污染影响、优质农田以及煤矿塌陷五类环境敏感区,并进行忻州市环境敏感地综合评价,明确其空间分布范围.研究结果表明,极高敏感、高敏感区占全市总面积的4%,较高敏感区和一般敏感区分别占10.5%和7.5%,低敏感区和非敏感区分别占40%和38%.通过分析规划土地利用功能分区方案与环境的协调性,在土地利用规划过程中,提出土地利用方式和空间布局优化对策.

As the new round of revising process of national land use plan started. A series of researches on environmental sensitive areas based on previous land surveys and investigations in Xinzhou, Shanxi were corducted, in order to manage land use in environmrntal sensitive areas, reduce environmental stress and ecological damage, and provide a sound foundation for future land use and land zoning. According to land planning and ecological consideration, the environmental sensitive areas were divided into the ecological sensitive area, water source sensitive area, contaminated sensitive area, high quality farmland sensitive area, the colliery dent sensitive area. The spatial distributions in the areas were obtained by GIS spatial analysis method. In doing so, the spatial distributions of environmental sensitivity were characterized. Areas with extremely high sensitivity accounted for 4% of the total area, and areas with high and moderate sensitivity for 10.5% and 7.5% ,and areas with low and non sensitivity for 40% and 38% respectively. The analysis on coordinating of land function and environmental sensitivity in the area were done and it provided a set of scientific evidences for land utilization and planning as well as optimization of spatial distribution in Xinzhou City.