庄浪河流域径流变化影响分析

应用水文站实测资料序列,分析了庄浪河流域径流的变化规律,对影响径流变化趋势的因素进行了分析。结果表明,庄浪河流域历年存在上下游水量不平衡,并且在20世纪70年代中期后,年径流量有明显衰减趋势。20世纪90年代中期后,"引大入秦"工程跨流域引水灌溉使径流有所增加,但对径流变化影响程度很小,其主要是人类活动影响造成的。

Analysis on runoff change of the Zhuanglang River Basin

Runoff change of the Zhuanglang River and its influencing factors were analyzed and discussed based on the monitored data from the regional hydrological stations.The results show that the water imbalance between upstream and downstream has been existing for years in the Zhuanglang River Basin.After the mid-70 of 20th century,the annual runoff change was in a remarkable attenuation and the water imbalance got exacerbated.After the mid-90,the cross-basin watertransfer project,Transfer Water from the Datong Ri...