人口的增长与生态环境的脆弱度之间存在着一定的负相关关系。
And there is a negative correlativity between the growth of population and the environmental frangibility.
岩溶生态系统是一种脆弱的生态系统，植被类型与盖度成为岩溶环境中最重要、最敏感的自然要素。
The vegetation types and coverage rates were the most important and sensitive natural factors because of the vulnerability in karst areas.
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