Drought and water shortage is the main limiting factor on the arid-area of agricultural production in the Northwest Loess Plateau.
干旱和缺水是中国西北黄土高原农业旱作粮食生产区的主要限制因子。
The topography of this area is that of a flat arid, desert plain, surrounded by small areas of high plateau, called mesas.
这个地区由干旱的平原和沙漠组成，周围环绕着高原，即台地（mesas）。
It relies strongly on water especially in semi arid area.
尤其在半干旱地区，对水的依赖性更强。
In the arid area, the storage water in deep layers of soil can adjust water utilization of plants, but artificial alfalfa can absorb lots of water from deep layers and lead to soil desiccation.
在干旱地区，土壤深层储水可以调节植物用水，但是人工苜蓿从土壤深层吸收大量水分导致土壤干燥化的发生。
In more arid area, man probably watched wild horses, wolves, and other animals dig for water and followed their example.
在较干旱地区，人类大概是看到野马、狼和其它动物发掘地下水，从而受到启发而学习它们的作法。
Study on water resources in arid area is one of the focuses in water resource researches.
干旱区的水问题是水资源研究的热点之一。
Solid water affords a new approach to drought resistant planting in arid and semi arid area.
固体水为干旱、半干旱地区的抗旱造林提供了一种新的途径。
City of the arid area is also known as the oasis.
干旱地区的城市亦被称为绿洲。
Cele County, with the Kunlun Mountain in its south and the hinterland of the Taklamakan Desert in its north, is an extremely arid area.
策勒县南倚昆仑山，北入塔克拉玛干沙漠腹地，属极端干旱的荒漠地区。
Located at an arid area in the middle of Guansu Province, Dashuitou Coal Mine shares a poor natural condition.
大水头煤矿区地处甘肃中部的干旱山区，自然条件很差。
In the mountainous watershed of the Heihe River, the runoff coefficient is much larger than that of the whole arid area, but it is still less than the average value over the whole country.
黑河山区流域径流系数远比干旱内流区的平均值大，但要小于全国的平均径流系数。
Therefore, how to enhance arid and half arid area crops output and Water using efficiency has the important practical significance.
因此，研究如何提高干旱和半干旱地区作物产量和水分利用效率有较高的应用价值和现实意义。
The paper aims to analyze coupling effects between water resources change and urbanization process in arid area of Hexi corridor of Gansu province in Northwest China.
本文以西北干旱区的甘肃河西走廊为例，分析了水资源变化与城市化过程的交互耦合效应。
Water is the main restricting factor that influences the growth of plants in arid area.
在干旱地区水分是影响植物生长的限制因子。
Arid and half arid area often suffer the drought which has the seasonal characteristic or difficult anticipated, its result can have the serious influence to the agricultural production.
干旱和半干旱地区常伴有季节性或难以预期的干旱，其结果会对农业生产造成严重影响。
The Ebinur lake of Xinjiang is located in an arid area, being a closed inland lake with a peculiar wetland-arid ecosystem.
新疆艾比湖是典型的干旱区湖泊，作为一个封闭的内陆湖泊，具有特殊的湿地、干旱生态系统。
The wetland in Ganghuang section of Hutuo River is a typical wetland of arid area in north China. The affecting factors can be divided into natural factor and human factor.
滹沱河岗黄段湿地是北方干旱缺水地区典型的河湖湿地，其影响因子可分为自然因子与人为因子。
The semi-arid area which grows the crops have the characteristics of uneven and little rainfall.
半干旱地区具有降水不匀和多变低水的特点。
All these reflect the serious impacts of moisture stress on the ecosystems in this arid area.
反映了干旱区水分胁迫对生态系统的强烈影响。
The leading factors of soil ecosystem in arid area are discussed based an the application of the principle and method of grey relational gradation, the important part of grey system theory.
本文应用灰色系统理论—灰色关联识别原理和方法，探讨干旱区土壤生态系统的主导因子识别。
The second is wide application. The model may be used other cities in arid area of northwest China.
本文是国家自然科学基金项目“西北干旱区域城市水环境极限承载力研究”的一部分。
In the arid area of Northwest China, the whole ecological environment is very vulnerable, and water is an important factor for the sustainment of the oasis ecological environment.
在西北干旱地区，整个生态环境非常脆弱，而水又是维系绿洲区生态环境的重要保证。
In the arid and semi arid area, the precipitation is little, soil moisture insufficient and low survival rate, low preserved rate and slow growing of trees.
干旱半干旱区降水少，土壤水分亏缺，林木成活率低、保存率低、生长缓慢。
The aim of the experiment is to reduce the large amount of ineffective evaporation in inland arid area plain reservoirs by using polystyrene foam plastic slabs floating on the water surface.
本文针对内陆干旱区平原水库水面无效蒸发量大的问题，提出用苯板漂浮水面的工程措施来防止蒸发损失，从而达到平原水库节水的目的。
In the arid area, there are two obvious characteristics as follows: One is poorest in water resources; another is weakest in ecological environment.
干旱地区有两个显著特点，一是水资源极度贫乏，二是生态环境极度脆弱。
The calculation error of evaporation power in arid area for few months in relatively high when the evap...
用彭曼原式和修正式计算干旱地区的蒸发力，个别月份误差较大。
The arid areas in west China are the natural experimental fields for arid area research.
中国西部干旱区是干旱区研究的天然实验场。
This paper briefly introduced the two classification methods, distribution area and natural features of arid area in China.
本文简要介绍了我国干旱区的二种分类方法、分布面积和自然特点。
For a long time, the people who live in arid area depend on the oasis to labor and live.
长期以来，此区的居民是藉赖绿洲生境而生息劳动。
Making a field comparative test on forestation living rate of locust in arid area by using plastic film, Genbao, root-growing dust, water-keeping agent.
采用农膜、根宝、生根粉、保水剂在干旱地区对刺槐造林成活率进行了田间对比试验。
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