Soil Cd土壤Cdsoiln.土地；土壤；污物，粪便v.弄污soil arthropod animals土壤节肢动物soil organic phosphate土地有机磷Soil fertility factors肥力因素soil fertility quality土壤肥力质量soil water flow system土壤水流动系统soil infiltration rate土壤渗入速率Soil moisture contents土壤水分soil nitrogen leaching土壤氮淋溶soil split preparation土壤切片制备Soil percolating water渗滤水