| 1. | Experimental soil used in this study was from inner mongolia , typical loess sampled from top layer of cultivated soils 试验土样取自于内蒙古清水河地区耕作表层土,是典型的黄绵土,为淡黄色。 |
| 2. | He ordered tons of fertile topsoil to cover the grounds to a depth of five feet and full - grown specimens of the plants were trucked up the mountain for planting 他定购了成吨肥沃的表层土,覆盖地面达5英尺深,把这些植物长好的样品用卡车运到山上种植。 |
| 3. | Formulation of arizona test dust by collecting wind blown topsoil , which required screening and blending , became impractical as larger quantities of test dust were needed 由于试验粉尘的需求量很大,使通过收集由风吹起的表层土来获得亚利桑那试验粉尘的公式变得不切实际。 |
| 4. | This paper first reports the difference of soil algae community makeup , microorganism amount , and soil phosphate activity between leanness soils and richness soils 本篇论文首先进行了贫瘠土壤与肥沃土壤表层土中土壤藻类种群结构、微生物数量以及土壤中三种磷酸酶活性的对比研究。 |
| 5. | In most cases , extracting oil involves chopping down the forest that blankets the region , draining the boggy ground , stripping off the topsoil and literally digging up the oily sand below 在大多数情况下,要从油沙中提炼出石油需要先把覆盖该地区的森林砍掉,排干地面的水分,去掉表层土然后当然就是把地下的油沙挖出来。 |
| 6. | A large amount of data were acquired from the measurement in situ surfacial soil strength on the tidal flat by using portable cone penetration , shallow drilling , laboratory analysis of delta , and other means 利用轻型静力触探对滩面表层土体强度进行密集型的测试,同时结合浅层钻探,室内试验等手段,获得了大量数据,进行了资料整理、分析。 |
| 7. | The contents of available p are increasing along with depth increasing . the contents of soil available k have the similar trend under different site types , that is , the contents surface layer about 0 - 40cm is higher than sub layer 刺槐林土壤全氮、有效氮含量表现出和有机质相似的变化规律,表层土的全氮、有效氮含量最高,随着土层深度的增加,土壤全氮、有效氮含量随着减小。 |
| 8. | The result shows soil masses in surface layer reach saturation more easily under great rainfall intensity and long - lasting rainfall , at the same time , there are big infiltration depth and influence of wetting deformation 结果显示,降雨强度越大、降雨持续时间越长,非饱和区土体含水率变化也大,坝坡表层土体较容易达到饱和,并且降雨影响深度也大,对坝坡表面湿化裂隙的产生及坝坡稳定性影响大。 |
| 9. | The expressions can take into account some important aspects such as stress - free ground surface , incompression of soil , prebored hole and tubular pile . through the analysis of displacement field , the variation rules of horizontal and vertical displacements are obtained 由位移场的解析解分析可知,桩身整个深度内的水平向位移场是向外挤出,竖向位移场在表层土体表现为隆起,而深层土体表现为下沉。 |
| 10. | The main result is as follows : 1 . after erosion , the content of organic matter , total nitrogen and the available nitrogen in the sediment is more than that of soil sample . namely the enrichment phenomenon of organic matter , total nitrogen and the available nitrogen in slope cultivated land erosion soil is obvious 黄?土受侵蚀后,泥沙样中有机质、全氮和碱解氮的含量都高于雨前采集的坡地表层土样,即黄?土坡耕地水土流失中有机质、全氮和碱解氮流失的“富集”现象明显,而全磷和速效磷却无明显的“富集”现象。 |