内蒙古林西县生态脆弱性评价研究

内蒙古林西县是典型的我国北方农牧交错地区,生态环境问题严重,直接威胁着区域社会经济可持续发展。该文以古林西县为研究区域,探讨我国北方农牧交错带生态脆弱性及其成因。在分析林西县生态环境问题的基础上,提出了生态脆弱性评价模型,建立了生态脆弱性评价指标体系。结果表明,林西县区域生态系统运行状况良好,生态脆弱度较低,微度和低度脆弱区共占55%以上,极度脆弱区仅占5%左右。然后,进一步分析了林西县区域生态环境脆弱性的驱动力、发生机制和主要影响因子,提出了生态建设治理的重点方向,为区域生态可持续发展提供参考。

ECOLOGICAL VULNERABILITY ASSESSMENT ON LINXI COUNTY OF INNER MONGOLIA

Linxi County of Inner Mongolia is a typical pastoral area of northern China,in which serious ecological environment problem existed,directly threatening the regional socio-economic sustainable development.The article took Gulinxi County as the study area to discuss the ecological vulnerability and its causes in ecotone region of northern China.Based on the analysis of the ecological problems in Linxi County,this paper proposed ecological vulnerability assessment model,established evaluation index system of ecological vulnerability.The results showed that the regional ecosystem in Linxi County was in good condition,ecological vulnerability was low,micro and low degree of vulnerability areas together accounted more than 55%,while extreme vulnerable area accounted only about 5%.Then,it further analyzed driving force,mechanism,and the main factors resulted in the vulnerability of regional ecological environment in Linxi County,pointed out ecological construction management direction,and provided a reference for the sustainable development of regional ecology.