Soil Cd土壤Cdsoiln.土地；土壤；污物，粪便v.弄污Soil biological crusts土壤生物结皮Soil compaction stress紧实胁迫soil-bacteria system土壤-微生物系统soil moisture dynamics土壤水分动态soil-wheat ecosystem土壤-小麦系统soil nailing retaining土钉支护soil nitrate N content土壤硝态氮含量soil temperature field土壤温度场soil carrying property携污性soil salification rate土壤积盐率