基于GIS的焦作市生态敏感性分析

GIS-based ecological sensitivity analysis in Jiaozuo

在生态环境现状调查资料和相关研究成果的基础上,选择有区域代表性的生态因子,借助先进的GIS技术,采用因子叠加法,对焦作市的生态敏感性进行深入分析,建立了焦作市生态敏感性模型.按生态敏感度的高低将研究区划分为最敏感区、次敏感区、弱敏感区和非敏感区4个等级,提出分区保护与建设的建议,为研究区空间功能区划和区域生态环境的保护与治理提供有价值的参考依据.研究结果表明,最敏感区和次敏感区面积占研究区总面积的30.7%,显示研究区生态敏感性总体适中.

Based on current data of eco - environment and former research results, ecological sensitivity in Jiaozuo was given thoroughly analysis by selecting regionally representative factors and using the factor- overlap method of GIS. The model of eco - environmental sensitivity in Jiaozuo was established. Four classes of ecological sensitivity ranging from extreme to low were generated, which are extreme sensitivity region, junior sensitivity region, weaker sensitivity region and non - sensitivity region. Some advices and countermeasures for different regions were put forward to provide valuable references for the the regional spatial planning and regional eco - environment protection. The results show that about 30.7% of surveyed area belongs to upper moderately -sensitive ecological region, which means the sensitivity is moderate.