Soilihi萨利赫soiln.土地；土壤；污物，粪便v.弄污soil barriers governance土壤障碍治理soil chemical properties土壤化学性质Soil spatial variability土壤空间变异soil nutrient management土壤养分管理soil contaminant release土壤浸出soil microbial diversity土壤微生物多样性soil grain size transfer土壤粒径转换Soil Retention Criterion保土性准则Soil NPK-fertilization土壤施肥soil shearing resistance土壤抗剪强度