黄土

The steady strength of saturated loess is examined using stresscontrolled undrained consolidation triaxial test.

通过对饱和黄土的固结不排水三轴试验研究了饱和黄土的稳态强度理论。

The steady strength of saturated loess is discussed under stress-controlled undrained consolidation triaxial test.

通过对重塑黄土的固结不排水三轴试验，研究了饱和黄土的稳态强度特性。

Planted forests can deplete deep soil water, forming an obstacle to sustainable land use in the semi-arid area of Loess Plateau. The purpose of this study was to examine effects of grazing and cropping on replenishment of deep soil water where forest plantations had depleted soil moisture at depths of 2～9.9 m. We compared soil moisture on plantation plots with that on plots where plantations were replaced by crops, grazed grassland, and ungrazed grassland seperately.

为了研究黄土丘陵半干旱区人工林迹地土壤水分恢复情况，该文以正在生长的人工林土壤水分含量为人工林迹地土壤水分恢复的起点，并分别以持续农地和持续放牧荒坡的土壤含水量为林后农地和草地土壤水分恢复的上限，对位于黄土丘陵半干旱区绥德县境内的人工林迹地土壤水分恢复情况进行了研究。

On the basis of long-term experiment, changes in soil organic C, N and dynamics of soil NO〓-N of cropping systems were investigated in gully area of the Loess Plateau by means of analysis of the 15-year soil samples, crop yield in following crop systems: 1 continuous winter wheat with unmanured , nitrogen, organic manure , phosphorus and organic manure , nitrogen and phosphorus , nitrogen, phosphorus and organic manure , 2 continuous alfalfa, 3 pea-winter wheat rotation, winter wheat-sainfoin rotation, and 4 bare fallow. A model was developed according to the organic C dynamics, and was tested by the long-term experiment.

本文以中国科学院长武试验站的长期试验（始于1985年）为依托，通过对典型处理8-15年的土壤养分、作物产量以及同期降水量等的系统分析，揭示了黄土旱塬区不同种植体系中土壤有机碳、氮的演变规律；阐明了长期施肥条件下土壤硝态氮的迁移积累机理；提出了目前水肥条件下黄土旱塬区冬小麦生产潜力及其提高途径。

At the same time, on the base of the analysis and study of the characteristic of sliding stability failure of loess slope in Sanmenxia area, a method, which is suitable for many hori

同时，在对三门峡地区黄土边坡滑动失稳特征进行分析研究的基础上，采用了一种适合多种土层、不同坡型的边坡稳定性分析方法，对三门峡地区四处深路堑黄土边坡实体工程稳定性进行分析及评价。

Therefore, doing research of the nutrient balance in the loessplateau has its practical signification. Using the long-term rotation and fertilization experiment that disposed in dry land on theloess plateau, the paper has studied nutrients in rainfall import to farmland ecosystem andAmmonia volatilization losses and nutrients disbursal of crop, also estimated the balance ofnutrients in farmland soil.

本文利用设在黄土高原旱地上的长期轮作与施肥试验，主要研究了黄土高原农田生态系统养分的降水带入、作物地上部分的氨挥发损失和作物的养分支出，并进行了 N、P、K 养分平衡评价。

According to the geomorphological structure and the origin of the Loess Plateau with reference to the average uplifting velocity of the gorge district between Shanxi and Shaanxi, it is demonstrated that the Loess Plateau is a unique type of accumulated plateau differing from the familiar plateau types, such as, denudated plateau, tectonic plateau and lava plateau etc..

根据黄土高原的地貌结构与成因，结合晋陕峡谷区新生代晚期地壳平均抬升速度的讨论，论证了黄土高原在成因类型上完全不同於剥蚀高原、构造高原、熔岩高原等各种高原类型，它是一种独特类型的叠加高原。

Hilly gullied loess region, the main body of Loess Plateau, is also an eco-economic sensitive area with special landscape pattern.

黄土丘陵沟壑区是黄土高原的主体部分，也是具有特殊景观格局的生态-经济敏感区。

To construct large rainwater collecting and storing projects in line with local conditions in gullied rolling loess area of the Loess Plateau can effectively utilize the rainwater resources and provide services for soil and water conservation measures and production and life of the local people.

在黄土高原的黄土丘陵沟壑区因地制宜建设大型雨水集蓄工程，可有效利用雨水资源，为水保措施和当地群众的生产生活服务。

Density of gully in this area is so high that it can reach 20km/km2; the erosive intensity varies with the different gully developmental stage; at the most active and densely gullied area, it has the most erosive intensity.

研究表明，包括切沟在内的黄土丘陵区的沟谷密度值可高达20 km/km~2以上；黄土冲沟的发育阶段不同，其侵蚀强度也相应变化；切沟发育最活跃和最密集的地段，其侵蚀强度也最大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。