humus layer的例句大全

Studies on the Forest Humus Layer and Its Impact on the Quantity of Undersoil Moisture

凋落物层对渗入底土水分数量影响的研究

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remarkably, hill closing for forestation can improve the physical properties of soil, increase its content of organic materials such as n and k and enhance the thickness of humus layer, thus improving the fertility of forest soil.

封山育林能明显改善林地土壤的物理性质，提高土壤中有机质、全N和速效K的含量，增加腐殖质层厚度，使土壤肥力得到提高。

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beneath the humus layer lies a leached horizon (a horizon) composed mainly of quartz sand.

腐殖质层之下是淋溶层（淋溶层A），主要是由石英砂组成。

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humus layer in different forest types and soil surface type and quantity of soil fungal communities have a significant difference.

不同林型腐殖质层和土壤表层的土壤真菌群落种类和数量都具存在显著差异。

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CHANGBAI Mountain volcanic ash soils humus layer with higher levels of organic matter, all rich in nitrogen, total phosphorus is missing.

长白山火山灰土的表层有机质腐殖质含量较高、全氮量丰富、全磷量缺少。

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linden tree where korean pine humus layer and soil surface in a number of diversity index showed the greatest advantage.

其中椴树红松林在腐殖质层和土壤表层的多个多样性指数中表现出最大的优势。

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The top layer of a soil profile; usually contains humus.

土壤层中的顶层；通常含有腐殖土。

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The results showed that the top height and mean height of the plantation increased as the increasing of slope location ( from mountaintop to the valley) and the thickness of humus-layer with linear function.

结果表明：林分上层高和平均高与立地腐殖质层厚度、坡位（由山顶到山脚）呈正相关，与土壤紧实度和石砾含量呈负相关。

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The earth surface of the region across it is mostly thicker humus soil or leaf falling covering layer, and has good heat reserving property, it is mostly weathering shingle, soil-aggregate mixture, and clay-gravel 0.5m-4.0m under it, and weathering rock.

所经地区的地表多为较厚的腐殖土或落叶覆盖层，其保温性良好，下层0.5&4.0米多为风化沙砾、碎石土和砾石土，，4.0米以下为风化岩石。

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the a horizon is the upper layer, containing humus and is leached and, or eluviated of many minerals.

层是位于最上面的一层，含有腐殖质，许多矿物质在该层中沥滤和淋溶。

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