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- Summarization on Study of Soil Surface Crust or Sealing and Its Effects on Erosion 表土结皮发育过程及其侵蚀响应研究进展
- soil surface crust 表土结皮
- This creates mulch on the soil surface. 这可以在土地表面形成覆盖物。
- Organic rubbers develop a resinous surface crust through weathering. 有机橡胶经过风蚀后，逐呈现出树脂状的外表。
- Incorporating soil surface crusting processes in an expert-based runoff model: Sealing and Transfer by Runoff and Erosion related to Agricultural Management 在基于专家的径流模型中对土壤表面板结过程具体化:与农业管理有关的由径流和侵蚀引起的填塞和转移
- Increasing numbers of four-wheel vehicles speeding over the sand break the desert's surface crust. 越来越多的四轮汽车在沙漠表面行驶破坏了沙漠表面的地壳。
- The distance of the water table below the soil surface must be adjusted. 必须调整土壤表面以下水位的距离。
- When the shaft or shaft bushing hole with severe wear, work top with the pump gear c**ity surface crust should h**e some contacts. 当轴与衬套或轴孔磨损严重时，工作中齿顶与泵壳内腔表面会产生不应有的接触。
- When the shaft or shaft bushing hole with severe wear work top with the pump gear cavity surface crust should have some contacts. 当轴与衬套或轴孔磨损严重时，工作中齿顶与泵壳内腔表面会产生不应有的接触。
- In our experiment desirable results were obtained by covering the soil surface with plant ash and fine sands. 经试验,用草木灰和细砂覆盖地面的方法,造成干燥的生态条件,对控制发生效果显著;
- Herbs, perennial, acaulescent or shortly caulescent, ascending, rosette but rarely closely appressed to soil surface. 多年生草本，无茎或短茎，上升，莲座丛但很少紧密地贴伏于土表。
- By model testing,the horizontal stress in the mucky layer under overlying arath surface crust is studied in this paper, when the overlying crust is under strip evenly distributed loads. 结果表明，在硬壳层的封闭下，淤泥层内水平应力随条形均布荷载的增加成幂函数的形式增长，且淤泥层内水平应力具有较高的数值，地表荷载在淤泥层内具有较大的影响范围。
- Mulches prevent crusting of the soil surface, thus improving the absorption and movement of water into the soil. 覆盖物可以防治土壤表层板结，使水份容易被土壤吸收。
- Fig. 4. Pycnidiospore survival of Didymella bryoniae placed at soil surface, 5, 15, and 30cm below ground at field. 四、在土壤表面、地表下5、15及30公分土壤深度的瓜类蔓枯病菌柄孢子存活情形。
- The study of herbicide deposition on soil surface and wheat stubble in different wheat mulch conditions is conducted. 研究了不同兑水量情况下，除草剂在免耕麦茬土壤表面和麦茬上的沉积规律。
- Indeed the ecology is destructed continuously and the soil surface nutrition is also washed out. 于自然生态环境中，生态演替和气候转变不断在进行，但速度是相对缓慢的。
- Area of existing vegetation con't. seed to the soil surface where they may compete with the new native grass plantings. 现有植被种子不可落在土壤的表面，因为他们将会与新的天然牧草争夺养分。
- Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface. 直根长圆筒状的，根深具一纤细和拉长的茎达土壤表面。
- Twenty 1.25” long spikes do the rest and penetrate the soil surface, aerating it all the while. 20支1.;25寸长的钉子会做剩下的事情，穿透土壤表层，始终在为它通气。
- Perithecia are abundant on those dead twigs falling over on soil surface at any time around the year. 调查北部地区柑橘树冠内枯枝产生孢子角的情形，在5月以前未见形成，5月以后持续至年底皆有孢子角之溢出；
