喀斯特生态环境脆弱性特征及其生态防治——以贵州省为例  

Fragility characters and ecological control strategy of Karst ecological environment in Guizhou—Taking Guizhou as case

作　　者：陈清惠[1] 

机构地区：[1]贵州大学生命科学学院,贵州贵阳550025

出　　处：《山地农业生物学报》2007年第3期244-247,260,共5页Journal of Mountain Agriculture and Biology

摘　　要：从岩性和地貌因子入手,将喀斯特生态环境脆弱程度分为5个等级,从小地形部位的尺度,对不同脆弱程度等级的环境特征和空间分布规律进行了分析,结果表明,喀斯特生态环境的脆弱性主要受到岩性和地形影响,从坡下部至山顶,脆弱程度随着坡度和基岩裸露率的增加而增加,在局部空间上表现出较大的生境特征差异。在脆弱性特征分析的基础上,针对不同的脆弱程度等级提出了相应的生态治理目标和治理途径。From the beginning of lithological and topographical factors,5 grades of fragility for Karst ecological environment were divided, and the environment characters and the space distribution patterns of the different fragility grade were analyzed. The results showed that the fragility of Karst ecological environment was mainly affected by the lithology and landform,the fragility degrees increased with the increasing of slope and outcrop rocks rates from the bottom to the top of the hill,this presented a great difference of habitat character in the local space. Based on the study of fragility characters, the relative objects and approaches of the ecological control and treatment for the different fragility grades were presented.

关 键 词：喀斯特 生态环境 脆弱性 生态防治 贵州 

分 类 号：S688.4[农业科学—观赏园艺]