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土壤密度:單位體積土壤(不含孔隙)的烘乾重量.單位為Mg/m3.一般土壤的密度多在2.6~2.8Mg/m3範圍內,有機質含量高的土壤密度較低.計算時通常採用平均密度值2.65Mg/m3. 1Mg=1000kg..
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