• Groundwater is the significant source of arid and semi-arid area, sometimes it's the single source of water.

    地下水干旱、半干旱地区用水重要来源有时甚至唯一水源

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  • Propylaea japonica is one of important predatory natural enemies in arid and semi-arid area China, especially those preying on younger larvae and eggs of insect pest in orchards and cotton fields.

    龟纹瓢虫propylaeajaponica我国干旱、半干旱地区农林果蔬生产重要捕食性天敌之一尤其夏季高温、干旱的情况下,对果园、棉田的幼龄害虫的捕食作用非常明显。

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  • Some stress resistant physiological indexes of the leaves of three Ligustrum species were compared to provide theoretical basis for cultivation management in arid and semi-arid area in north China.

    为给女贞、金叶女贞金边女贞北方干旱、半干旱地区栽培管理提供理论依据,对三种女贞部分抗性生理指标进行比较试验。

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  • Solid water affords a new approach to drought resistant planting in arid and semi arid area.

    固体干旱干旱地区抗旱造林提供了一种新的途径

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  • 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.

    我国西北地区世界上典型干旱干旱地区之一国土面积的38%。

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  • 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.

    干旱干旱区降水土壤水分亏缺,林木成活率、保存率低、生长缓慢

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  • The area of arid and semi-arid region of China accounts for 52.5 percent of the the whole area of territory, it is important bases of agriculture, forestry, animal husbandry of our country.

    中国干旱干旱地区面积约占国土总面积52.5%,成为农业林业、畜牧业的重要基地

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  • The western area of 1oss plateau of China, including the area of GansuProvince, Ninxia Hui Autonomous region and Haidon district of QinghaiProvince, lies in the arid and semi-arid climatic zone.

    我国黄土高原西部地区包括甘肃、宁夏青海海东地区位于干旱和半干旱气候类型地带

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  • China's arid and semi-arid land area accounting for about 1/2, while, with the enhancement of Greenhouse effect, the of drought-resistant varieties breeding will be an important aspect in the future.

    我国干旱干旱地区面积全国土地面积1/2,同时随着全球温室效应增强抗旱品种选育未来品种的选育一个重要方面

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  • China's arid and semi-arid land area accounting for about 1/2, while, with the enhancement of Greenhouse effect, the of drought-resistant varieties breeding will be an important aspect in the future.

    我国干旱干旱地区面积全国土地面积1/2,同时随着全球温室效应增强抗旱品种选育未来品种的选育一个重要方面

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