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Advances in Earth Science  2000, Vol. 15 Issue (5): 516-521    DOI: 10.11867/j.issn.1001-8166.2000.05.0516
Articles     
ANALYSIS OF TIME-SPACE DISTRIBUTION REGULATION AND EVOLUTION TENDENCY OF RUNOFF OF MAIN RIVERS IN GANSU PROVINCE
HU Xing-lin
Survey Bureau of Hydrology and Water Resources of Gansu Province,Lanzhou 730000,China
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Abstract  

We got the main reason of aridity from studying on the time-space distribution regulation of runoff of main rivers in Gansu province. That is, for all of the main rivers, annual runoff quantity,plentiful (rich)water period was very short ,generally ,only last 2~3 years; But low water period was very long may last 7~26 years. The average runoff remained steady basically for many years to many rivers in Qilian mountain regions; And we forecasted that the water quantity of all main rivers in whole province will change from low water years to more than normal water years from 1998~2009. The author suggested that everyone should establish a thought of anti-drought for long times.The utilization of water resources must be reasonable and optimal arrangements based on systematic analysis.

Key words:  Main rivers in Gansu province      Distribution regulation of runoff      Analysis to development tendency.     
Received:  19 November 1999      Published:  01 October 2000
P942.2  
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Cite this article: 

HU Xing-lin. ANALYSIS OF TIME-SPACE DISTRIBUTION REGULATION AND EVOLUTION TENDENCY OF RUNOFF OF MAIN RIVERS IN GANSU PROVINCE. Advances in Earth Science, 2000, 15(5): 516-521.

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http://www.adearth.ac.cn/EN/10.11867/j.issn.1001-8166.2000.05.0516     OR     http://www.adearth.ac.cn/EN/Y2000/V15/I5/516

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