路域农田大型土壤动物对公路运营过程重金属累积的响应
李晓强, 董炜华, 宋扬

Effect of heavy metals from highway operation on soil macro-fauna in roadside farmland area
LI Xiaoqiang, DONG Weihua, SONG Yang
图3 不同样带土壤动物群落主成分分析
Fig. 3 Principal component analysis (PCA) of soil faunal communities for different transects