摘要
中国西南部岩溶山区属于典型的生态环境脆弱区,其地壳表层石漠化现象日趋严重。通过分析人类活动和生态环境之间的关系,确定了适合该区的生态环境脆弱性判断的主要关键指标。在此基础上,利用层次分析法确定这些关键因子对该地区生态环境脆弱性影响程度的大小,并利用建立的模型对岩溶山区的生态环境脆弱性进行了综合的半定量评价。评价结果将其生态环境分为5类:极端脆弱区、严重脆弱区、中等脆弱区、轻度脆弱区、潜在脆弱区,并针对各脆弱区的特点提出相应的生态防治对策。
The karst mountains in Southwest China are a typical ecoenvironment fragile area.As a main result of interactions between irrational human activities and the vulnerable ecogeoenvironmental settings,rock desertification has become one of the most serious environmental,social and economic problems.The paper establishes the index system of evaluation for the region by analyzing the relationship between human activities and environmental changes. Based on the analysis,the weight of each factor influencing ecoenvironmental vulnerability is determined with analytic hierarchy process method, and the extent of fragility is calculated by establishing the model.The result can be classified into extreme fragility,serious fragility,moderate fragility,gentle fragility and potential fragility.According to the characters of each class,the paper has put forward the countermeasures to rehabilitate the ecoenvironmental conditions.
出处
《地质科技情报》
CAS
CSCD
北大核心
2003年第3期95-99,共5页
Geological Science and Technology Information
基金
湖北省自然科学基金资助项目(2002AB086)
中国地质调查局国土资源大调查项目(20013000005)
关键词
岩溶山区
西南地区
生态环境
环境脆弱性
层次分析法
Southwest China
karst mountain
eco-environment
fragility
analytic hierarchy process