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- surface soil section 表土段
- 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 sampling method is to dig the soil section plane in each sampling spots, 10 cm is the space between two collect the section sample. 采样方式是根据布设好的采样点，在各个采样点先挖土壤刨面，以10cm为间距采集剖面样品。
- 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。
- The cyanide transport in the soil section is similar to freely soluble salts.In arid and semiarid areas, cyanide can be highly enriched in the salt crust. 氰化物在干旱半干旱气候条件下的行为同于易溶盐，可在地表盐渍中高度富集。
- 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；
- 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。
- 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。
- 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。
- Because it has increased the evaporation surface of the soil after surface soil collapsing, and reducing the soil content further. 这主要是因为塌陷后产生的裂缝增大了土壤蒸发面积，进一步降低了土壤水分。
- 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。
- Heathman G,Starks P,Ahuja L,et al.Assimilation of surface soil moisture to estimate profile soil water content[J].Journal of Hydrology,2003,279:1-17. 赵文智.;科尔沁沙地人工植被对土壤水分异质性的影响[J]
- Cuttings should be after regular watering, keep the soil moist seedbed to the surface soil seedbed no significant white suitable. 扦插后还应经常浇水，保持苗床土壤湿润，以苗床表面土壤不显白为宜。
- Based on detailed investigation and monitoring,the Hg-element content in the surface soil in Taiyuan,Shanxi Province is analyzed and assessed. 文中在调查监测的基础上，对太原市地表土中汞元素的含量进行了初步分析评价。
- Knoepp, J. D. and W. T. Swank (1997) Forest management effects on surface soil carbon and nitrogen. Soil Science Society of America Journal 61: 928-935. 颜江河(2005)森林土壤的碳吸存量。森林与环境变迁研讨会论文集。国立中兴大学森林学系主办。国立中兴大学农业暨自然资源学院十楼国际会议厅。226页。
- Studies were carried out by using the water extract from Casuarina equisetifolia root, fresh branch, litter branch and surface soil to treat its seedlings. 采用木麻黄根、新鲜小枝、枯落枝和表层土壤的水浸液处理其幼苗，研究木麻黄他感作用。
- Based on the study of the mechanism of biotechnical slope protection,mechanical model were developed in the condition of surface soil reinforced with herb-root in geo-grid. 在对土质路基边坡植被护坡机理分析的基础上,给出了土工格室内草本和木本植物根系加筋土体的力学模型。
- 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。
- The influence of simulated acid rain on transferring of exchangeable cations in the profile of red soil is investigated in the lab when surface soil is mixed with KCl. 利用室内模拟酸雨的土柱实验,研究了在红壤表土施用钾肥后酸雨对不同土层交换性阳离子迁移的影响。
