森林凋落物在地表累积起不同分解程度的有机残余物质，形成土壤有机层(Soil organic layer) [2, 4, 5]，它与森林表层土壤(表土，Topsoil)是植被与土壤进行养分与能量交流最集中的地方，对于森林生态系统的养分循环与水土保...
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It's an 8 - to 12-inch layer of dirt impregnated with hydrogels, along with organic agents that nourish the natural bacteria in the soil.
它是一个由8 - 12英寸的一个充满水凝胶的泥土层，还有可以培养土壤中自然菌的有机处理剂。
Thatch can be described as the layer of organic residue located immediately between the sward and the soil surface.
土壤腐殖质层可被定义为在草皮与土壤表面之间的一层有机残留物。
Soil magnetism of the plough layer is in relatively good correlation with organic carbon and P but shows a rather poor correlation with N and K.
耕作层的土壤磁化率与有机碳、磷含量具有较好的相关性，而与氮、钾含量相关性较差。
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