category of soil classification
... 土壤分类 soil classification 土壤分类级别 category of soil classification 土壤分类学 soil systematics ...
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反映土壤理化性质并影响土壤利用管理的颗粒大小级别、矿物学类型和土壤温度级别是理想的土族分类标准；
Three soil characteristics are selected as family classification criteria. They are particle-size class, soil mineralogical type and soil temperature regime.
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