| 甘肃省干旱半干旱地区降水的研究 |
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| 引用本文： | 谭启后,褚友余.甘肃省干旱半干旱地区降水的研究[J].干旱区资源与环境,1991,5(2):50-59. |
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| 作者姓名： | 谭启后 褚友余 |
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| 作者单位： | 甘肃省水文总站
(谭启后)，甘肃省水文总站(褚友余) |
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| 摘 要： | 本文通过对甘肃省降水资料的具体分析,指出了在干旱、半干旱地区降水的主要特征,如暴雨的特殊性、固体降水与海拔关系、降水量与海拔关系、降水量与作物产量关系等,并对如何提高降水利用率,发展农业生产等问题进行了探讨。
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| 关 键 词： | 干旱 半干旱区 降水特征 农业生产 |
A STUDY ON THE PRECIPITATION IN ARID AND SEMIARID AREA OF GANSU PROVINCE |
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| Tan Qihou,Chu Youyu Central Hydrometric Station of Gansu Province.A STUDY ON THE PRECIPITATION IN ARID AND SEMIARID AREA OF GANSU PROVINCE[J].Journal of Arid Land Resources and Environment,1991,5(2):50-59. |
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| Authors: | Tan Qihou Chu Youyu Central Hydrometric Station of Gansu Province |
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| Institution: | Tan Qihou;Chu Youyu Central Hydrometric Station of Gansu Province |
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| Abstract: | The annual and regional precipitations in Gansu province greatly changeunder the influences of geographical position, characteristic topography andatmospheric circulation. In the arid and semiarid area, the monthlyprecipitation is uneven and unstable,and the precipitation intensity high,theeffective precipitation small. The rain concentrates july to september, andalways is torrential or shower.So the drought frequently occurs in sping andsummer. According to the analyses of the precipitation data in arid and semiaridarea of Gansu Province, the paper points out the main characteristic ofprecipitation in the area, such as characteristic torrential downpour, therelation between snow and elevation as well as rain and elevation, therelationship between annual precipitation and crop yield. The author alsodiscusses how to effectively use the precipitation, how to develop theagricultural production etc. |
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| Keywords: | Arid and Semiarid Area Characteristic Precipitation Agricultural Production |
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