我国北方和西北干旱地区煤田自燃地质灾害比较严重。
The northern and northwestern parts of China, arid and in water shortage, are frequently attacked by coalfield selfcombustion geological hazard.
也为西北干旱地区土遗址的维修加固提供了一些思路和借鉴。
The experience may be provide some methods to the reinforcement of earthen sites in the northwestern China.
以上研究成果为西北干旱地区膜孔沟灌的推广应用提供了理论依据和技术指导。
The above research results provided the theories for the expansion application that the Film Bore Ditch of the northwest and dry region Irrigation according to and technique guidance.
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 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.
新疆克孜勒苏克尔克孜自治州地处塔里木盆地西北干旱地区，无灌溉则无农业，属于绿洲经济。
The Kirgiz Autonomous Prefecture of Kizilsu is located in the Northwestern Margin of Tarim Basin. It is oasis agriculture economy.
田间试验研究了西北干旱半干旱地区地膜覆盖对土壤中n 2o排放通量变化的影响。
Field experiments was used to study the change of soil N2O discharge flux in the northwestern arid and semi-arid areas.
以青海省为例，探讨了我国西北干旱、半干旱地区农村的能源问题及其对自然生态环境的影响。
Taking Qinghai province as an example, this paper discusses the rural energy problem and its effect on natural eco-environment in dry and semi-dry areas of Northwest China.
新疆于田绿洲地处我国西北极端干旱地区，降水稀少，地下水贫乏。
Keriya oasis is located in the Northwest extreme arid region of China, where there is less precipitation and a deficiency of groundwater.
主要分布于西北、华北和东北干旱和半干旱地区。
They are mainly distributed in the northwest, north and northeast China arid and semi-arid areas.
本文在前人研究基础上，总结了中国西北部干旱半干旱地区的水文特性，降水及径流的时空分布规律。
This paper summarized hydrological characters, distribution of precipitation and runoff in arid and semiarid regions in the northwest of China on the basis of the previous researches.
水资源短缺已成为我国西北地区乃至世界上其他干旱半干旱地区需要面对的一个重大问题。
Lack of water resource has become a critical problem faced by China northwest regions and the other arid and semiarid regions in the world.
集流灌溉农业是“八五”末期在我国西北干旱、半干旱地区迅速兴起的农业灌溉方式，对该区增产粮食起到积极推动作用。
Runoff collecting irrigation agriculture rapidly rises in the last stage of the eighth five year plan in northwestern arid and semi arid region, and it plays an active role in promoting grain output.
我国西北地区是世界上典型的干旱半干旱地区之一，占国土面积的38%。
Northwest of China, whose area accounts for 38 percent of the total, is one of the typical arid and semi-arid zone in the world.
我国西北地区是世界上典型的干旱半干旱地区之一，占国土面积的38%。
Northwest of China, whose area accounts for 38 percent of the total, is one of the typical arid and semi-arid zone in the world.
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