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- Our results indicate interactions among earthworms, organic matter, and soil microbial activity that should alter the carbon and nutrient balance of northern hardwood forest surface soils, relative to non-invaded soils. 我们的结果显示土壤在有蚯蚓,有机物,以及微生物的相互作用下将会影响到北部阔叶林表面的营养物质和碳含量的平衡,这些只是相对于没有受到侵袭的土壤来说的。
- forest surface soil 林地表土
- 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。
- The results showed that sand grain content in surface soil of Pinus massoniana forest land was highest among 4 kinds of forest lands and that of natural evergreen broad-leaved forest was lowest. 结果表明，在4种林地中，表层土壤砂粒含量以马尾松林地为最高，天然常绿阔叶林地最低；
- The bulk density and specific gravity of surface soil in P. massoniana forest land was largest, followed by bush forest land, that of natural evergreen broad-leaved forest land was smallest. 表层土壤容重和比重马尾松林地为最大，灌木林地次之，天然常绿阔叶林地最小；
- 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。
- In this paper, a solid phase material fire experimental bed, which has more slope segments, has been used to simulate upslope forest surface fire. 应用自行研制的“多坡段固相材料火蔓延实验台”，模拟森林地表火的蔓延过程，对变坡度情况下森林地表上坡火行为规律进行了实验研究。
- 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。
- 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。
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- 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。
- It is said that there are wolves in this forest. 据说这片森林里有狼。
