野外农田系统中聚乙烯微塑料对土壤⁃小麦系统的影响

马文倩, 许美玲, 郭红岩

Effect of polyethylene microplastic on soil⁃wheat system in field

Wenqian Ma, Meiling Xu, Hongyan Guo

图4 土壤养分指标（TP,AK,AP,TN,OM,TN,NH₃_N,NOx_N）与不同处理组中属水平上微生物的冗余分析
TP:total phosphorus,AK:available potassium,
AP:available phosphorus,TN:total nitrogen,
NH₃_N:ammonium nitrogen,NOx_N:nitrate nitrogen
low：147 mg·kg^-1 microplastic treatment,
high：782 mg·kg^-1 microplastic treatment.

Fig.4 Redundancy analysis (RDA) based on the relative abundances of bacterial genus and soil nutrient indexes