生态系统脆弱性分析和评价是适应和减缓气候变化的关键和基础，已成为近年来气候变化领域和生态学领域的研究热点。
Vulnerability analysis and assessment are the key and basis for adapting and mitigating climate change, being the highlight in the research fields of climate change and ecology in recent years.
第四章中我们运用突变理论对矿区生态系统的脆弱性进行了研究。
In the fourth chapter, we use the catastrophe theory to make research on ecosystem vulnerability in mining area.
作为人口高度集聚的人工生态系统，城市生态系统的安全性更加具有脆弱性。
As one of populous artificial ecosystems in the ecology domain, the security of urban ecosystem is more fragile.
作为人口高度集聚的人工生态系统，城市生态系统的安全性更加具有脆弱性。
As one of populous artificial ecosystems in the ecology domain, the security of urban ecosystem is more fragile.
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