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Comprehensive evaluation method for sediment allocation effects in the Yellow River
International Journal of Sediment Research ( IF 3.5 ) Pub Date : 2020-05-05 , DOI: 10.1016/j.ijsrc.2020.04.002
Xujian Chen , Chunhong Hu , Yuqi An , Zhihao Zhang

Scientific evaluation of the sediment allocation effects in the Yellow River plays an important role in the comprehensive harnessing of the Yellow River. A new evaluation index system for sediment allocation has been established using the Analytic Hierarchy Process, and six main evaluation indexes have been selected for this study. The calculation methods and evaluation criteria of each evaluation index are proposed. The evaluation criterion of bankfull discharge in the upper reach is 2,000 m3/s, that of Tongguan elevation in the middle reach is 325.7 m, and that of bankfull discharge in the lower reach is 4,000 m3/s. The evaluation criteria of water volume and sediment volume into the Yellow River are 25 billion m3/a and 300 million t/a, respectively, and that of sediment volume into the sea to maintain stability of the estuary is 130–260 million t/a. The comprehensive evaluation method and grade index are proposed, and the effect of sediment allocation in the Yellow River from 1960 to 2015 is evaluated. The comprehensive evaluation grades in different periods are determined. The evaluation results objectively reflect the situation of sediment allocation in the Yellow River, and the new comprehensive evaluation method can be applied to evaluate the sediment allocation scheme of the Yellow River in the future.



中文翻译:

黄河输沙效果综合评价方法。

科学评估黄河输沙作用在黄河综合治理中发挥着重要作用。利用层次分析法建立了一种新的泥沙分配评价指标体系,并选择了六种主要评价指标进行研究。提出了每种评价指标的计算方法和评价标准。上游河岸满溢流量的评价标准为2,000 m 3 / s,中游guan关高程评价标准为325.7 m,下游河段溢流的评价标准为4,000 m 3/ s。进入黄河的水量和泥沙量的评价标准分别为250亿立方米/年和3亿吨/年,为保持河口稳定而入海的泥沙量的评价标准为130-2.6亿吨/年。 。提出了综合评价方法和等级指标,评价了黄河1960 — 2015年泥沙分配的影响。确定不同时期的综合评价等级。评价结果客观地反映了黄河调沙情况,今后可采用新的综合评价方法对黄河调沙方案进行评价。

更新日期:2020-05-05
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