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- superficial soil layers 浅层土
- The particle size scope is in 0 ~ 50mm that It can test in the soil layer. 可以测试的土体的颗粒粒径范围为0~50mm。
- Root biomass of winter wheat in 0~30 cm and 0~100 cm soil layers was studied using root core and dig sampling method. 用挖坑冲洗法和改良根钻法研究了耕层(0~30cm)和1m土体内冬小麦根系生物量及其空间分布。
- The root activity below 20 cm soil layers increased a little at the rpie stage , and the reason was not clear. 成熟期20cm以下土层根系活性具有反弹上升现象。
- In desert area of Jing-Yu Gas Pipeline of Second Shan-Jing Pipeline Project, soil layers belong tofine silty sand and have very low bearing capacity. 陕京二线靖榆输气管道工程沙漠地段,由于土壤层为细粉砂,承载力极低,给挖沟及管道下沟施工带来困难,采用双侧沉管施工方法,解决了这一难题。
- Deep rooting of rice plant made easy to absorb more nutrients from deep soil layers, and protected the plant from lodging at reproductive stage. 深根水稻植株从深层土壤中吸收更多养分、保护植株在生殖生长阶段不倒伏。
- The soft soil is featured by big viscosity, bad water permeability, big water content, low bearing capacity, big settlement and complex soil layers. 软土地基的土质具有粘性大，透水性差，含水量大，承载力低，沉降量大，土层结构复杂等特点。
- There was a weak or medium differentiation of moisture content in different soil layers at the boundary of forestland-grassland. 雨季林地土壤水分的变异系数都大于草地,林地内各个层次土壤含水量差别较大,而草地内各个层次土壤含水量差异不显著；
- The below -ground biomass at different soil layers decreased with root-systems displaying increased shallowness with increasing degradation levels. 随着退化程度加剧，分布在各层的植物根量越来越少，地下根系具有浅层化特点。
- Owing to the well-distributed and uniform and unvaried soil layers in Shenzhen area, the method, thus, recommended herein would be general to a certain extent. 由于深圳地区浅部土层分布较为均匀，层位稳定，故文中介绍的方法具有一定的普遍性。
- The order of water-holding capacities in different plantation layers was as follows: soil layer > forest canopy > vegetation and litter layer. 林分不同层次的持水量大小排序为：土壤层＞林冠层＞林下植被和凋落物层。
- Owing to the shallow soil layers in Shenzhen area are uniformly distributed and stratigraphically steady, thus, the method recommended herein would be general to a certain extent. 由于深圳地区浅部土层分布较均匀，层位稳定，故该文介绍的方法具有一定的普遍性。
- The 19 soil samples in all soil layers in different land use types can be classified in to 3 sorts with different anti-erodibility on the basis of fuzzy-clustering analysis. 通过模糊聚类分析可将重庆缙云山不同土地利用类型不同层次的19个土壤样本划分为抗蚀性强度不同的3类。
- Slope aspect has significant influence on the layer-averaged soil moisture of some soil layers in wet and medium moisture status for wasteland, shrubland, woodland and fallowland. 对于相同的土地利用类型来说,坡向只在湿润或中等湿润时段对部分层次的土壤水分有明显的影响;
- Soil adhesion may be reduced even if water cannot readily permeate the soil layer. 即使水不易进入污垢内层，也能降低污垢的吸附作用。
- Superficial scratches can be easily removed. 表面的划痕很容易擦掉。
- On the nitrate-N accumulated characteristics in deep soil layer of winter wheat field in Taihang Piedmont. 太行山山前平原冬小麦田深层土体硝态氮累积特征研究
- The deposition in an underlying soil layer of colloids, soluble salts, and mineral particles leached out of an overlying soil layer. 淀积作用胶状物，可溶性盐和矿物微粒从上层土壤向下层过滤的沉淀过程
- Species number ranked in the following order: brush and herb layer > tree layer > litter layer > soil layer. 每样地的物种数量都是以灌木草本层最多，依次为乔木层、枯枝落叶层和土壤层。
- The soil layer of Rouli is 700 to 800 meters deep. Experts have verified it is the thickest soil layer on earth. 若笠的黄土层厚达七、八百米，经过专家证实，是整个地球黄土层最厚的地方。
