原始生态系统
- 网络primordial ecosystem
原始生态系统-
对于大部分亚马逊雨林地区和周围的大草原是否是原始生态系统，一直存在争论，这项新研究一定会使争论更加激烈。
The new study is bound to further fuel the debate over whether most of the Amazon rainforest and the associated savannahs are pristine ecosystems .
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还有十多个国家级和省级的自然保护区，其中不少是原始森林生态系统。
Of the ten national-level and provincial-level nature reserves , most belong to the primeval forest ecological system .
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通过对我国典型寒温带兴安落叶松林区的原始林、间伐林、原始湿地3种生态系统冻土中硫含量以及影响硫含量因素的研究。
Study was made on the content of Sulphur in permafrost and the influencing factors of the Sulphur contents in three ecosystems which were virgin forest , clear cutting forest , original wetland in typical temperate Larix gmelinii forest region in China .