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受人类活动的影响,水文站实测资料已不能反映天然下垫面条件下的产汇流状况,各水文代表站的实测径流均需进行还原计算。文章以颍河黄桥站以上流域为例,对天然年径流量系列还原与修正方法进行研究与探讨,分析流域天然年径流量和水资源演变趋势,为流域水资源开发利用与管理活动提供基本数据。
Under the influence of human activities, the measured data of hydrological stations can not reflect the production and sinking conditions under natural underlying surface conditions. The measured runoffs of hydrological representative stations need to be reduced and calculated. Taking the watershed above Huangqiao Station as an example, this paper studies and discusses the methods of restoration and correction of natural annual runoff series, analyzes the natural annual runoff and trend of water resources evolution, and provides basic information for the development, utilization and management of water resources in the basin data.