沙漠边缘的半干旱土地处于非常脆弱的生态平衡之中，而这些半干旱区域对于持续增加的环境压力的适应能力极其有限。
The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures.
干旱区内陆河流域景观生态建设。
The landscape ecological construction in continental river basin in arid zone.
绿洲是干旱区最重要的景观单元之一。
Oasis is one of the most important landscape units in arid region.
干旱区的水问题是水资源研究的热点之一。
Study on water resources in arid area is one of the focuses in water resource researches.
中国西部干旱区是干旱区研究的天然实验场。
The arid areas in west China are the natural experimental fields for arid area research.
去年，干旱区的谷物产量比预计产量少了11 000吨。
The arid region was 11, 000 tons short of its expected cereal productionlast year.
反映了干旱区水分胁迫对生态系统的强烈影响。
All these reflect the serious impacts of moisture stress on the ecosystems in this arid area.
干旱区地貌：旱地过程，形式和变化，第三版。
Arid Zone Geomorphology: Process, Form and Change in Drylands, Third Edition.
干旱区和半干旱区的造林主要受水分条件的限制。
The afforestation in arid and semiarid is restricted by water condition.
目前我国干旱区经济的主体是农业，而绿洲是其载体。
Agriculture is the body of the economy in arid areas in China, and oasis is its carrier.
风沙土是形成于干旱区、半干旱区的一种特殊性质的土。
Aeolian sandy soil is a kind of specific soil formed in arid or semiarid area. It has specific engineering property.
风沙土是形成于干旱区、半干旱区的一种特殊性质的土。
Aeolian sandy soil is a kind of specific soil formed in arid or semiarid area.
因此，在草原干旱区开垦农田，应以秋耕为主要耕作方式。
Therefore, autumn ploughing should be applied as a major pattern of cultivation in the farmlands in dry pasture regions.
机械化坐水种已成为中国半干旱区作物抗旱播种的有效措施。
Irrigating-sowing mechanization has become an effective measure on crop drought defying sowing in the semiarid region of China.
因此，对干旱区土壤肥力质量要素的变异规律研究具有战略意义。
As a result, the research on the rules governing the variation of the soil fertility enjoys a strategic significance.
在这个干旱区域，这些没有用在刀刃上的水正是那些农民极度渴望的。
Tapping the drought-prone region's aquifer for nonessential uses diverts water from farmers who need it desperately.
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。
This paper briefly introduced the two classification methods, distribution area and natural features of arid area in China.
西北干旱区内陆绿洲的主要生态环境特点，导致其特殊的农业特点；
The oasis agriculture appears the special characters due to the eco - environment characters of arid area of northwest region.
介绍了干旱区土壤遥感分类识别推理决策器的设计原理与实现方法。
This paper presents design principle and realizable approach of Classification and Recognition Inference Decider for Soil Remote Sensing in arid land.
介绍了干旱区土壤遥感分类识别推理决策器的设计原理与实现方法。
This paper presents design principle and realizable approach of Classification and Recognition Inference Decider for Soil Remote Sensing (CRID) in arid land.
介绍了干旱区土壤类型遥感识别推理决策器的设计原理与实现方法。
This paper presents design principle and realizable approach for Inference Decider for Recognition of Soil Classification Remote Sensing(IDRS) in arid land.
干旱区绿洲内主要廊道景观类型包括河流、水渠、田间防护林和公路等。
In arid region oasis, the main corridor landscape types include river, ditch, shelterbelt and road.
荒漠绿洲是干旱区人类生存的主要场所，地域内蕴藏着大量的自然资源。
Desert oasis region is mainly the life place for people in arid regions, and there contains abundant natural resources.
在干旱区，定量计算灌溉蒸发量，对合理配置水资源有十分重要的意义。
In arid land, proper calculation of irrigation evaporation plays an important role in water resources optimum distribution.
浑善达克沙地是我国北方干旱半干旱区的主要沙地和严重荒漠化地区之一。
Otindag Sandland is one of the main sandlands and among the most seriously desertificated region in semiarid area of China.
绿洲是干旱区集自然与人文为一体的特殊景观类型，是干旱区的精华所在。
The oasis is the special view type of integration of nature and humanity in arid region, while it is also the quintessence of the arid region.
绿洲是干旱区山地、荒漠和绿洲这三大系统之一，是干旱区特有的地理景观。
Oasis is one of the three systems, mountains, desert and oasis in arid region. It is a special geographic landscape.
根据这一理论提出的各种尺度上的动态研究和模拟方法在干旱区得到了应用。
The dynamic study and simulation methods on various scales based on the theory have been applied in arid zone.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which no irrigation water resources.
东北半干旱区是我国北方旱农地区的重要组成部分，多数地区没有灌溉水源。
Northeast semi-arid region is one of the main parts of the north dry farming area, most of which no irrigation water resources.
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