soil Cl土壤氯动态soiln.土地；土壤；污物，粪便v.弄污soil ersion factor parameter土壤侵蚀因子参数soil sterilising preparation土壤消毒制剂soil environmental pollution土壤环境污染soil-nail braced structure土钉支护结构Soil water content treatment土壤含水量soil layer with deep deposit深覆盖土层soil moisture's dynamic ruleSoil genetic characteristics土壤发生特性soil amelioration techniques土壤改良技术soil permanent wilting point土壤凋萎湿度