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- The nutrient of C, N, P, K in rice straw buried by rotocultivator in deep soil layer released at a high rate and less remain than on surface soil. 运用机械将稻秸秆深施于水田土层内,秸秆中的碳、氮、磷、钾养分释放比秸秆面施速率高,残留量少。
- Abstract: The nutrient of C, N, P, K in rice straw buried by rotocultivator in deep soil layer released at a high rate and less remain than on surface soil. 文摘:运用机械将稻秸秆深施于水田土层内,秸秆中的碳、氮、磷、钾养分释放比秸秆面施速率高,残留量少。
- Closure cover system is one of important parts of landfill site construction, it includes landfill gas discharge guid ing layer, geotechnical film, drainage layer and plant cover surface soil layer. 封场覆盖系统是垃圾卫生填埋场建设的重要组成部分,覆盖系统包括气体导排层、土工膜、排水层、植被表土层。
- Preliminary Study on Microflora of Surface Soil Layer at Sabina Vulgaris Forest 臭柏林表土层微生物区系组成研究
- surface soil layer 表土层
- According to the engineering characteristics of the large surface soft soil layer in a certain work cite, the draining concretion scheme was adopted. 根据某工程场区内存在大面积软弱土层的工程特征,经方案比选,采用排水固结法处理方案。
- 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。
- The surface soil and the unconsolidated mantle rock beneath it form only a thin venner. 地表土壤和它下面的未固结的风化层只是形成一个很薄的盖层。
- The runoff sediment has higher clay content than the surface soil, andthe splash soil has higher fine sand content. 通过对侵蚀上壤的颗粒组成分析表明,侵蚀对土壤颗粒具有选择性,径流侵蚀泥沙中粘粒含量比侵蚀表土含量高,溅蚀泥沙中细沙粒含量变高。
- Bare soil is protected from the impact of rainfall which can cause surface soil crusting, compaction, and erosion. 塑料薄膜覆盖使裸土免受降雨引起的表土结壳、压实和侵蚀。
- 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。
- In addition, surface soil in the front of anchorage uplifts and moves forward with an increase of additional stress. 锚碇前面表层土体出现隆起和向前水平位移,水平向附加应力增大;
- 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
- There is plenty of salt in surface soil of Yellow River delta, which makes soil hardened and salinized. 摘要黄河三角洲表层土壤中的大量盐类物质可以造成土壤的板结化、盐渍化、砂僵化。
- 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。
- In loessal regions and alluvial valley fills of the western United States, both surface soil and subsoil are commonly friable. 在美国西部黄土区和冲积河谷里,表土和底土一般是容易破碎的。
- 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。
- There are other reasons why the underground irrigation system is better for tomatoes. Underground system leaves the surface soil dry. 之所以地下灌溉系统更适合番茄栽培,还有几条理由。地下灌溉使土表保持干燥。
- Remanent magnetism of soil layer is taken as a reference frame for locating hy-drocarbon seepage zone. 本文利用土壤剩余磁性作为确定烃类渗漏带的参考系。
