Water is the crucial factor influencing vegetation restoration and eco environmental reconstruction in Loess Plateau region.
水分是制约黄土高原地区植被恢复与生态环境重建的决定性因子。
Causes of severe soil and water loss in the loess plateau region were analyzed from not only natural but also human factors.
从自然因素和人为因素两个方面分析了黄土高原水土流失严重的原因。
In the study and practice of comprehensive harness in loess plateau region, the studying on economic problems are strengthened.
为适应今后黄土高原综合治理研究与实践的需要，必须强化经济问题研究。
The loess plateau region is a typical water scarce area and the drought is the main factor that restricts the growth of the forest and grass.
黄土高原地区是典型的水资源贫乏区，干旱是制约林草生长的主要因素。
Light loam and medium loam with less clay particles as fill earth had been extensively used in the construction of hydraulic fill dam in the Loess Plateau region.
粘粒含量较少的轻、中粉质壤土作冲填土料修建水坠坝，在黄土高原地区已被广泛应用。
The city of Yan'an, is located in the hilly loess plateau region, while the long and narrow watercourse makes lots of trouble in the process of city construction.
延安处于黄土高原梁峁地区，川道狭长的缺点，给不断扩大的城市建设带来了诸多不利。
The field trial of plastic film mulching on dryland spring wheat was conducted in the semiarid region of Loess Plateau.
在黄土高原半干旱地区，对旱地春小麦进行短期地膜覆盖试验。
The variation of water and sand is studied under the influence of the rainfall and human activity in the fore and aft er management of small watershed in gully region of the loess plateau.
摘要以西峰杨家沟小流域为研究对象，研究了在降雨和人类活动的影响下，黄土高原沟壑区小流域治理前后水沙变化。
This paper discussed the effect of some factors on characteristic value of soil and water loss, which has been completed by simulating rainfall experiment in the south region of the Loess Plateau.
在黄土高原南部地区，通过人工模拟降雨试验，探讨了各因子对水土流失特征值的作用效应。
Loess plateau is the important implement region of dry land agriculture in our country, and the water source of agriculture production mainly depends on precipitation.
黄土高原是中国旱地农业的重要实施区域，降水是其农业生产的主要水分来源。
The water-wind erosion crisscross on the Loess Plateau is a special region with severe soil erosion and brittle ecosystem and being the main sediment source of the Yellow river.
水蚀风蚀交错带是黄土高原水土流失最为严重的地区之一，该地区生态环境十分脆弱，成为黄河中下游河道泥沙输入的主要来源。
Soil erosion on the loess plateau is very serious with water erosion in the main in most parts of the region.
黄土高原土壤侵蚀异常强烈，并且大部分地区以水蚀为主。
The regularity, durativity, normality and harm of drought in semiarid region on the Loess Plateau, result in the complexity and hardness to deal with in farmland drought management.
黄土高原半干旱地区干旱发生的经常性、持续性、广泛性和危害性，决定了解决农田抗旱问题的复杂性和艰巨性。
So the grass, and arbor vegetation should be rehabilitated and developed quickly in order to decrease soil erosion in Hilly-gully region of Loess Plateau, and then decrease soil nutrients loss.
因此，该地区要注意建设和恢复草、灌植被，使之尽快起到水土保持作用，近而减少土壤养分流失。
This paper explored the difference of farm households land management behavior based on investigation in wangdonggou watershed in gully region of loess plateau.
通过对高原沟壑区长武王东沟小流域农户的实地调查，对不同收入水平农户土地经营行为的差异作了初步探索。
The variation of water and sand is studied under the influence of the rainfall and human activity in the fore and after management of small watershed in gully region of the loess plateau.
摘要以西峰杨家沟小流域为研究对象，研究了在降雨和人类活动的影响下，黄土高原沟壑区小流域治理前后水沙变化。
The experiment, demonstration and popularization provide the quick recovery of shrub-grass in semi-arid region of Loess Plateau with scientific foundation.
该体系的组装配套与试验、示范、推广为黄土高原农牧交错区灌草植被的快速恢复提供了重要的科学依据。
Loess Plateau is the main region of soil and water loss and the key region of western eco environmental construction in China.
黄土高原是我国主要的水土流失区，也是西部生态环境建设的重点地区。
There is typical loess ravine terrain, more than ten large areas of the plateau, and is mixed plateau, ravines, girder, valley, flat plain, chain of mountains, slope in Qingyang research region.
研究区庆阳既有典型的黄土丘壑地形，又有十多个面积相对较大的塬面，高原、沟壑、梁峁、河谷、平川、山峦、斜坡兼有。
The normal region is cold irrigated areas of Loess Plateau.
适宜黄土高原冷凉区水地种植。
The results indicated that the potential yield increase was greater in the soil loss region of Loess Plateau, and the present yield only reached 74.
结果指出，该区粮食增产潜力很大，目前整体产量水平仅达到试区攻关水平的74。
West limestone dry stone mountain, central as the Loess Plateau hilly region and the Taiwan area, the eastern plains area, 731-1716 m above sea level in between.
西部为石灰岩干石山区，中部为黄土丘陵区和台塬区，东部为平原区，海拔高度在731-1716米之间。
Hippophae rhamnoide is a nicer shrub species for plantation becoming savageness. This population could renew very well in Hilly-gully region of Loess plateau.
研究结论如下： 沙棘是一个良好的人工林天然化灌木物种，在黄土丘陵区该种群更新良好。
Comparison of dryland potential yield increase in gully and hilly regions of Loess Plateau shows that potential yield increase in hilly region is 117.6%, and only 56.6%in gully region.
在黄土台塬区和丘陵区中，丘陵区的粮食增产潜力较台塬区大，前者尚有117.6 %增产能力，后者仅56.6%。
The results were as the following:(1) In semi-arid region of the Loess Plateau, the soil moisture contents of forestland and wasteland were low, near to the wilting humidity.
结果表明：（1）黄土高原半干旱区不同树种林地及荒坡土壤含水量很低，接近于凋萎湿度。
Forests in the Yellow River region have already decreased a great deal in Quaternary age, and the Loess Plateau began to be formed.
在黄河流域，第四纪时森林已大量减少，黄土高原已开始形成。
Shanxi Province, at the east of the Loess Plateau, is located in the typical semi-arid region in northern China.
山西省地处黄土高原东部，属我国北方典型的半干旱区。
The variation of water and sand is studied under the influence of the rainfall and human activity, in the fore and after management of small watershed in gully region of the loess plateau.
以西峰杨家沟小流域为研究对象，研究了在降雨和人类活动的影响下，黄土高原沟壑区小流域治理前后水沙变化。
The downward long-wave radiation is strongest in the cold region and weakest in the Loess Plateau while the upward long-wave radiation is obvious in the arid region and weak in the cold region.
大气逆辐射在东北冷区最明显，在黄土高原区最弱；地表长波辐射在西北干旱区最强而在东北冷区最弱。
The downward long-wave radiation is strongest in the cold region and weakest in the Loess Plateau while the upward long-wave radiation is obvious in the arid region and weak in the cold region.
大气逆辐射在东北冷区最明显，在黄土高原区最弱；地表长波辐射在西北干旱区最强而在东北冷区最弱。
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