ecological classification system 生态分类系统
ecological region classification 生态区域划分
ecological environment classification 生态环境分类
Ecological Environmental classification 生态环境分类
Chen's ecological group classification 陈氏生态群分类
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The classification of HCVFs is highly dependent on the particular socio-cultural and ecological context.
FORBES: IKEA Under Fire for Clearing Ancient Russian Forest
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