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- Abstract North China is situated in arid and semiarid regions. 摘 要 华北地区位于干旱和半干旱地区。
- Growing seasons in temperate regions will expand, while droughts are likely to ravage further the semiarid regions of Africa and southern Asia. 温带地区的植物生长季节将增长;而在非洲和南亚缺水区域;乾旱将更为严重.
- An annual plant(Cyamopsis tetragonolobus) probably native to India, adapted to semiarid regions and grown as a forage crop and for its seeds, from which guar gum is obtained. 瓜尔豆一种一年生植物(瓜尔豆瓜尔豆属),可能为印度特产,适于在半干旱地区生长,作为饲料栽培,其种子可提炼出瓜尔豆胶
- Dry farming; dryland farming: A system of producing crops in arid and semiarid regions without the use of irrigation. 旱地耕作法:指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。
- A very black topsoil, rich in humus, typical of cool to temperate semiarid regions, such as the grasslands of European Russia. 黑钙土含丰富腐殖质的一种很黑的地表土,产于俄罗斯欧洲部分的草原地区等干旱温凉地带
- About 200 species: arid and semiarid regions of the W hemisphere; two species (introduced) in China. 大约200种:西半球的干旱和半旱的地区;中国有2种(引入栽培)。
- This paper deals with the development and trend of the rainwater harvesting research in the semiarid regions. 论述了国内外半干旱区雨水集流研究的发展和存在问题。
- Soil microbiotic crust is developed broadly and has an ecological significance in arid and semiarid regions. 土壤微生物结皮广泛存在于干旱半干旱地区,且具有重要的生态学意义。
- Study on Water and Density Growth Effect of Locust Forest at Semiarid Region on Loess Plateau. 黄土高原半干旱区人工刺槐林水分密度生长效应研究。
- A very black topsoil,rich in humus,typical of cool to temperate semiarid regions,such as the grasslands of European Russia. 黑钙土含丰富腐殖质的一种很黑的地表土,产于俄罗斯欧洲部分的草原地区等干旱温凉地带
- The role and function of microbiotic crust in ecological restoration of arid and semiarid regions of China were discussed. 探讨了土壤微生物结皮在中国干旱沙漠地区生态恢复中的地位及作用。
- The micro-meteorological conditions are advantageous for forming soil condensate in arid and semiarid regions in north China. 中国北方干旱半干旱地区的气象条件有利于土壤凝结水的形成。
- An annual plant(Cyamopsis tetragonolobus) probably native to India,adapted to semiarid regions and grown as a forage crop and for its seeds,from which guar gum is obtained. 瓜尔豆一种一年生植物(瓜尔豆瓜尔豆属),可能为印度特产,适于在半干旱地区生长,作为饲料栽培,其种子可提炼出瓜尔豆胶。
- Among all of the factors that affect trees growth and wood formation,temperature is the most important,especially in arid,semiarid regions or high latitude regions. 影响树木生长及木材形成的诸多气候因子中,温度最重要,尤其是在干旱、半干旱地区或高纬度地区。
- Cyamopsis tetragonolobus) probably native to India, adapted to semiarid regions and grown as a forage crop and for its seeds, from which guar gum is obtained. 瓜尔豆一种一年生植物(瓜尔豆瓜尔豆属),可能为印度特产,适于在半干旱地区生长,作为饲料栽培,其种子可提炼出瓜尔豆胶
- In arid and semiarid regions, on the other hand, the small number of lakes and the great distances between them reduce the possibilities for correlation. 另一方面,在干旱和半干旱地区,湖泊数量很少且彼此距离遥远减少了相关的可能性。
- The arid and/or semiarid region in the middle and west parts of the Tibetan Plateau may be a potential dust source for the aeolian deposit of the northeastern Tibetan Plateau. 位于高原季风与东亚季风交汇区的湟水流域风尘堆积物可能有一部分来源于青藏高原中-西部干旱地区的风化细粒物质。
- Dry farming; dryland farming A system of producing crops in arid and semiarid regions without the use of irrigation. Frequently alternate years of fallow and cropping are practiced. 旱地耕作法指一种在干旱或半干旱土地上不使用灌溉方法生产作物的耕作制度。常常采用一年休耕、一年种植的方法。
- High-cold and semiarid region of northwest Hebei 冀西北高寒半干旱区
- semiarid region of Loess Plateau 黄土高原半干旱地区