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中国南方R河洪水特征研究
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Abstract:
利用我国南方一多沙河流控制性水文站1957~2009年的实测资料研究了洪水变化规律。结果表明：1) 该流域年最大洪量有增加趋势，流域大洪水发生的频率越来越高，周期越来越短；2) 洪水与年降水量、年径流量呈高度正相关关系；洪水与年径流量的相关性比洪水与年降水量的相关性更密切；3) 受各种因素影响，洪水过程呈现尖瘦化的趋势。
In this study, we analyzed the measured data
from 1957 to2009at a station and found flood characteristics
of variation of R River in southChina. The results show that: 1) THE
annual maximum peak discharge in the drainage basin has an increasing trend. The floods occur with
increasing frequency and cycles of floods are getting shorter and shorter; 2) There
are highly positive correlation of annual precipitation, annualrunoff
and flood; the correlation is more closely between flood andrunoff
than flood and annual precipitation; 3) The process of flood is becoming
sharper and thinner because of different factors.
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