upper horizon soil
upper horizon soil 双语例句
Carbon storages of the upper horizon in lessive dark brown forest soil, brown coniferous forest soil and mountain tundra soil were 10959 gC m-2 (0-20 cm), 4199 gC irf2 (0-10 cm) and 6171 gC m~2 (0-32 cm) respectively, occupy 60%, 50% and 77% of total carbon storage. This showed that the upper horizon was accumulating soil organic carbon.
显然，低海拔地带土壤发育程度比高海拔带土壤发育程度要好，这是由于高海拔带土壤受火山喷发、气候、温度等自然因素的影响较大，从而致使土壤有机质的发育过程缓慢。
The upper horizon of the soil is very thick and black with humus; it merges into a brown lime-rich borizon belos.
它的上层土层较厚，黑色富含腐殖质，在下层与棕色的富含石灰的土层相融合。
The heavy metals concentrate on the upper horizons, especially the 0~20 cm horizon in the soil profile, and decrease abruptly below the depth of 20 cm. The contents of soil heavy metals in the spring are higher than those in the autumn.
土壤重金属集中于土壤表层，Cd、Cu、Pb、Zn主要富集在0￣20cm土层中，20cm以下深度的含量大大减小，土壤重金属元素含量春季高于秋季。
Countermeasure to Overcome Sinking when Construction of Open Caisson in Upper-soft and Lower-hard Soil Horizon To lower place machine and superordination machine, serial news report hardware and software realize the main body of a book having carried out design.
上软下硬土层中沉井施工时克服阻沉的对策本文对下位机与上位机串行通讯的硬件和软件实现进行了设计。
Break the hard layers of the earth and dirt? Countermeasure to Overcome Sinking when Construction of Open Caisson in Upper-soft and Lower-hard Soil Horizon
是怎么在坚硬的岩石上破土而出，生根存活呢？上软下硬土层中沉井施工时克服阻沉的对策
Conventionally the layers have been divided into A, B and C horizons. The A horizon is the upper layer, containing humus and is leached and, or eluviated of many minerals. The B horizon forms a zone of deposition and is enriched with clay minerals and iron, aluminium oxides from the A layer. The C layer is the parent material for the present soil and may be partially weathered rock, transported glacial or alluvial material or an earlier soil.
传统上可将土壤分成A、B、C三层。A层是位於最上面的一层，含有腐殖质，许多矿物质在该层中沥滤和淋溶。B层是个沉积区，富集了大量的来自A层的粘土矿物质和铁，铝氧化物。C层是现在土壤的母质层，也可能是风化的岩石、来自冰河或冲积层的物质、或早期土壤遗留下来的。
upper horizon soil
相关单词辨析
这组词都有“土地，土，泥”的意思，其区别是：
clay: 特指潮湿时发粘，而火烤后变坚硬的泥土。
mud: 指湿土，尤指雨后稀泥、污泥。
dust: 特指土壤干燥后，飞扬于空中的细微泥土。
ground: 通常指大地的表面，也可指土壤、泥土或场地。
land: 含义笼统。指与河流、海洋相对的陆地，也指可耕种的土地。
earth: 多指地表带有水分的泥土，较具体。
dirt: 指地表的干松泥土。
soil: 特指适宜栽种农作物或生长各种植物的泥土。