短語詞組短語ecological footprint diversity 生態(tài)足跡多樣性ecological system diversity 生態(tài)系統(tǒng)多樣性ecological diversity models 生態(tài)多樣性模型scaling ecological diversity model scaling 生態(tài)多樣性模型preserve the ecological diversity 保持生態(tài)多樣性the scaling ecological diversity index scaling 生態(tài)多樣性模型 返回 ecological diversity