那些遭遇不只一种压力的生态系统，例如一片先是被砍伐再被用作农耕的林地，需要最长的时间来复原。
Ecosystems exposed to more than one pressure, such as a forest that is first felled and then used for agriculture, took the longest to recover.
国家森林局的相关人员说这场大火燃烧的主要是草地和灌木林地，生态系统并不会因为这种大火而受影响。
The fires are burning mostly grass and shrub land, ecosystems that are adapted to fire, says the Comisión Nacional Forestal (CONAFOR, Mexico’s National Forest Service).
世界森林生态系统包括热带、亚热带、温带森林，北方针叶林以及其他有林地。
World forest Ecosystem includes tropical, subtropical, temperate, and boreal forests as well as other woodland.
森林是陆地生态系统的主体，林地是森林资源的重要组成部分，是森林资源管理的核心。
The forest is the land ecosystem main body, The forest land is the forest resources important constituent, Is the forest resources management core.
森林是陆地生态系统的主体，林地是森林资源的重要组成部分，是森林资源管理的核心。
The forest is the land ecosystem main body, The forest land is the forest resources important constituent, Is the forest resources management core.
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