李林,周可新,郭泺

• 1:中央民族大学生命与环境科学学院
• 2:环境保护部南京环境科学研究所

摘要(Abstract)：

理解生物多样性的风险是减缓其衰退速率和可持续发展的前提。生态系统受威胁等级评价能较客观地反映生物多样性丧失的程度。2013年,国际自然保护联盟(IUCN)发布了新的生态系统受威胁等级评价方法。它类似于物种灭绝风险的定量评估方法,可以对传统以重要物种为评价对象的生态系统风险评估方法进行补充。在IUCN的基础上,结合我国国情,制定了一套适用于中国陆地自然生态系统受威胁等级评价的标准,提出了5个相对容易量化的指标:1)生态系统分布范围减小;2)地理分布限制;3)环境退化;4)生物过程和相互作用被破坏的程度;5)生态系统碎片化增加程度。

关键词(KeyWords)： 生态学;陆地生态系统;威胁等级;评价

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划项目(2012BAC01B08);; 环保公益性行业科研专项(201209027)

作者(Author): 李林,周可新,郭泺

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