岩溶地区土地敏感性的评价方法——以贵州省为例

岩溶区开发建设项目的不断开展,是对岩溶区土地产生破坏和影响的重要因素。本文以贵州省典型岩溶地貌类型为代表,从岩溶地区土地的生态脆弱性和对环境影响的敏感性两个方面进行综合评价。发现在人类活动干扰下峰丛峰林类土地比较容易产生退化,溶丘溶原类土地脆弱可能性比峰丛峰林类小;岩溶地区各土地类型均比较敏感。从而揭示对这类土地进行开发利用时容易产生的问题和敏感程度,提醒土地使用者加以注意并进行防范处理。

Assessment Method for the Land Sensibility in the Karst Area - Taking Guizhou Province as Example

The expanding construction projects are the important factors in destroy and impact of the land in the karst area. Taking the typical karst landform type in the Guizhou Province as the example, the essay made the comprehen- sive assessment on the land in the karst area from the aspects of ecological frangibility and sensibility to the environ- ment impact. The results show that found that under the interference by human activities, the frangibility for the land in the peak cluster and hilly area is easy to be degraded, while the possibility of land frangibility at karst - hill and plain is less than that of in the peak cluster and hilly area. Various types of land in the karst area are sensitive, show- ing the common problems and sensitive degree during the development of such types of lands, so as to remind the land users to take care of such issues and conduct the prevention treatment.