根据腐殖质与矿物质土壤的结合程度、分解作用中所含的有机物类型以及原有的植被，腐殖质可区分为几个类型。
Humus is classified according to how well it is incorporated into the mineral soil, the types of organisms involved in its decomposition, and the vegetation from which it is derived.
土壤剖面特性的不同和质地的差异为我们提供了区分的条件和依据。
The differences of soil section features and soil texture provide conditions and bases for us to distinguish.
向土壤溶液中加入一已知量的氟标准溶液，再用氟离子电极测定和区分溶液中无机单核铝的形态。
A small volume of fluoride solution was added into soil solution, then the fluoride electrode procedure Was used to characterize inorganic monomeric aluminum species in the solution.
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