Soil Cd土壤Cdsoiln.土地；土壤；污物，粪便v.弄污soil poor in nutrients养分不足的土壤soil compaction effect挤土效应soil in tea plantation茶园土壤soil micro-organisms土壤微生物soil of tea plantation茶园土壤soil-nail supporting土钉支护soil absorption system土壤吸收系统Soil Shearing Strength土壤抗剪强度soil chemical property土壤化学性质soil formation process成土过程