黄土高原

This study was therefore conducted in a small watershed of the loessial gully region to reveal the profile distribution of soil properties as affected by landforms.

论文研究了黄土高原沟壑区小流域地形条件对土壤性质剖面分布的影响，结果表明土壤硝态氮、速效磷、碱性磷酸酶和蔗糖酶为高度变异的土壤性质；pH值和过氧化氢酶为小变异土壤性质。

Control of soil and water loss on the Loess plateau emphasizes on oversand and coarse sandy area, Silt-arrester dam is the key to the object.

黄土高原水土流失治理的重点在多沙粗沙区，淤地坝是实现治理目标的关键措施。

The influence of different plantations on the soil fertility on Loess Platea.

黄土高原不同类型人工林对土壤肥力的影响。

Based on a whole survey and detailed analysis in artificial Robinnia pseudoscacia forestland,distribution and characters of dry layer in soil were studied in north Shaanxi Loess Platea.

以人工刺槐林为研究对象，经大量野外调查和数据分析，研究了陕北黄土高原土壤干层的分布状况和分异特征。

Myspalax cansus (Rodentia, Myospalacinae, Myspalax)which lives on the loess plateau of our country. This unique underground rats life-long living under the cave, it developed many hypoxic tolerance protect mechanism to adapt its special circumstances at in organsall levels. In this study,we used Gansu zokor and SD rats (Sprague-Dawley)for the object, do serious hypoxia tolerance experiment, to explore the hypoxia tolerance extreme of Gansu zokor, analysis the difference hypoxia tolerance between Gansu zokor and SD rats at same oxygen concentration; The changes on their cardiac muscle organization structures in hypoxia tolerance process ; The expression of HSP70 between normoxic and hypoxic control in cardiac muscle organization of two animals , to find the relativity in all the results.

甘肃鼢鼠隶属啮齿目，鼢鼠亚科，鼢鼠属，是我国黄土高原特有地下鼠，由于终生营地下洞穴生活，使得甘肃鼢鼠发展出良好的低氧耐受保护机制，本研究以甘肃鼢鼠和SD大白鼠(Sprague-Dawley)为对象，进行低氧耐受实验，探寻甘肃鼢鼠的低氧耐受极限，比较二者低氧耐受的差异；以及低氧耐受不同时程，二者心肌组织显微和超微结构的变化差异；比较分析左心室组织中HSP70的表达变化和心肌耐受过程中组织结构变化的相关性。

Natural restoration of vegetation is an important approach to ecological restoration. The detailed investigation showed that the succession trend was quiet different under different site conditions. Stipa bungeana Trin dominated on south facing slopes and mountain tops while Artemisia Vestita Wall and A.

以黄土高原典型沟壑区―吴旗县为例，通过对退耕或封禁后植被自然恢复过程及其物种多样性的调查分析，结果表明，在不同的空间立地条件下，植被的演替变化规律不同：阳坡与峁顶的植被演替趋向形成以长芒草为主的群落类型，而阴坡则形成以铁杆蒿和茭篙为主的群落类型。

Gansu zokor is a unique subterranean rodent which lives on the loessplateau of our country. Living in the hypoxia underground environment for long term,it developed many special adaptive characters on configuration and function to adaptits special circumstances.

甘肃鼢鼠是我国黄土高原上生活的一种特有的地下鼠，为适应地下低氧环境，其结构和功能都出现了很多特化特征。

Taihang Range and the eastern part of Loess Plateau are possibly important corridors for connecting the floras of northeast and southwest China.

太行山区和黄土高原东部地区是联系我国东北和西南植物区系的重要通道，植物在经过这个地区时可能有三条不同的具体迁移路线。

Mulched non-textile can preserve soil heat, save water and benefit the plant growth, and it has a better spread prospect in foresting the sloping field and greening the wild region in the Loess Plateau.

无纺布覆盖进行水平沟造林能达到保温和节水作用，促进植被生长，对黄土高原地区坡地造林和荒山绿化具有较好的推广应用价值和实际意义。

The ravines and gullies of the loess plateau have brought much inconvenience to the agricultural production, transportation and people's daily life.

黄土高原的沟壑化，给农业生产、交通运输以及人民的日常生活带来了诸多不便。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。