贵州独山国家重点生态功能区生态敏感性评价

以国家重点功能区内的贵州省独山县为研究对象，选取土壤侵蚀、石漠化和生境3个生态环境要素建立敏感性评价指标体系，运用GIS技术，采取单因子评价和多因子综合评价的方法，对研究区进行生态敏感性评价。结果表明：独山县全部属于生态敏感区，全县以中度敏感区为主，面积为1 345.8 km²，占县域面积的55.1%;极敏感区域和高度敏感区集中分布于县域东北部和中部，占县域面积的29.4%;轻度敏感区零星分布于县域西北部和南部，占县域面积的15.5%。结合当地实际情况，建议将合理利用土地作为脱贫攻坚的突破口，并根据评价结果，对独山县进行生态功能空间控制分区，提出了相应的保护和开发对策。

Evaluation of Eco-environmental Sensitivity of National Ecological Function Area of Dushan County in Guizhou Province

Taking the national ecological function area of Dushan County in Guizhou Province as a case, the study has adopted soil erosion, desertification and habitat as ecosystem factors in setting criteria for ecological sensitivity evaluation. And based on GIS spatial analysis, it has evaluated ecological sensitivity of the research area by using both single factor and multi-factor comprehensive evaluation methods. The results showed that Dushan County is in the ecological sensitive region and the moderately sensitive part is dominant with an area of 1 345.8 km2, accounting for 55.1% of the total area. The highly sensitive part and the extremely sensitive part concentrated in northeast and central, which accounts for 29.4%.The slightly sensitive part distributed sporadically in the south and northwest, accounting for 15.5%. In combination with the local situation, rational utilization of land resources is suggested as a crucial breakthrough of the poverty relief policy. According to the result of evaluation, ecological function space control partition should be designated, and countermeasures of development and protection are put forward.