摘要
由于水文气候条件的自然变化及受人类活动的影响,近年长江流域的入海径流特征发生了相应的改变,径流条件的变化势必对长江流域下游水生态环境带来一定的影响。为了解长江下游干流径流的演变特点,为长江下游生态保护和资源开发提供科学依据,本文运用趋势预测法分析了长江下游干流主要控制站大通站径流条件的年际变化过程。结果表明,在所分析的时段内,长江下游径流总体上呈微弱增加的趋势。
Along with the change of hydrological and weather conditions and the impact of human activities,the characteristics of the runoff from the Yangtze River into the sea have been respectively changed in recent years.Runoff change would lead to impact on the aquatic environment in the lower reaches of the Yangtze River.In order to find out the characteristics of the runoff change,to provide a scientific basis for ecological protection and resource development in the lower reaches of the Yangtze River,this paper analyzed the interannual variation of the runoff at Datong station in the lower reach by using the tendency prediction method.The result shows that the runoff has a small increase in the lower reaches of the Yangtze River during the study duration.
出处
《水文》
CSCD
北大核心
2010年第5期42-45,共4页
Journal of China Hydrology
关键词
径流条件
长江下游干流
趋势预测
大通站
runoff condition
lower reaches of the Yangtze River
tendency prediction
Datong station
