摘要
岩溶地区作为一个特殊的地理环境单元，具有环境承载量低、地表崎岖破碎、植被生长困难、生态环境脆弱的特点。该文以岩溶地貌发育典型、碳酸盐岩出露面积广的贵州省为例，论述了岩溶区生态环境脆弱性类型划分的主要原则，探讨了脆弱性类型划分的指标并进行了量化。在此基础上，用灰色关联度分析确定了各影响因子（指标）的权重，经过综合评判，笔者把贵州岩溶区生态环境脆弱性类型划分为５类：剧烈脆弱区、强度脆弱区、中度脆弱区、轻度脆弱区和潜在脆弱区，并针对各脆弱性类型区的特点，提出了相应的防治对策。
Karst mountain areas are widely distributed in Guizhou province where the ecological environment is fragile.With Guizhou karst areas as an example,this paper discusses the main principles and quantifies the index for division of eco-environmental fragility types in karst region. Furthermore,factors affecting fragility division of ecoenvironmental system are weighted in accordance with grey correlativity. Finally, five types of ecoenvironmental fragility in Guizhou karst areas, i. e., extreme fragility region, intense fragility region, intermediate fragilty region,slight fragility region and potential fragility region,are identified through comprehensive judgment.The corresponding countermeasures are also suggested.
出处
《环境科学研究》
EI
CAS
CSCD
1994年第6期35-41,共7页
Research of Environmental Sciences
基金
国家自然科学基金
关键词
生态环境
类型划分
贵州岩溶区
脆弱性
Ecological environmental fragility
Division of types
Guizhou karst area
