climatic ecologic area 气候生态区
This paper analyses the structural pattern and community succession of three Changhsingian paleocommunities in Xingwen area by the mathematical statistics method and modern ecologic theory.
本文运用数理统计方法，并结合现代生态学领域中较新的理论，对四川兴文地区长兴阶的三个古群落进行了结构模式和群落的更替分析。
In sensitive region, it has great influence on engineering and ecologic balance in pastoral area.
在退化敏感的地带，工程建设，牧区生态平衡都有不可忽视的影响。
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