嘉陵江三江汇合区段的沙量平衡及控制三峡水库泥沙措施探讨  

SEDIMENT BALANCE OF THREE-RIVER CONFLUENT REGION IN THE JIALING RIVER AND MEASURES TO CONTROL SEDIMENT ENTERING THE THREE-GORGE PROJECT RESERVOIR

作　　者：李英伦[1] 

机构地区：[1]西南农业大学资源与环境学院

出　　处：《西南农业大学学报（自然科学版）》1994年第3期288-293,共6页Journal of Southwest Agricultural University

摘　　要：根据嘉陵江、涪江和渠江３个水文站的沙量平衡计算表明，该区间河段的输沙模数明显增大。利用邻近地区输移比值，估算了该区段流域的侵蚀模数，参照重庆市采用的土壤侵蚀模数综合值分析，认为川东平行岭谷区的重庆布用中等侵蚀程度评估水土流失程度过于保守。著者根据区间流域产沙量分析，并参照国家标准，认为重庆市用强度侵蚀来评价土壤侵蚀是适宜的。文章还提出了控制泥沙进入三峡水库的６条综合措施。Hechuan county of Chongqing city is the confluent region where the Fujiang River and the Qujiang River join the Jialing River,By calculating,By calculating calculation sediment balance on the sediment data accumulated in many ycars at four stations near the three rivers,it is found that the delivery sediment modulus has been increasing markedly in the interregional rivers. Applying the delivey ratio of the neighbouring areas,the erosion modulus in the interregional river basin is estimated. Based on the comprehe nsive soil erosion modulus applied in Chongqing city,it seems overconservative to use medium erosion degree in evaluating soil and water losses in Chongqing city,which is located in the parallel ridge and gorge area of eastern Sichuan. Based on an analysis of the sediment yield in the interregional river basin and referrin g to the national standards,the author re com me nds applying in tense erosion in evaluating erosion of soil.The paper also offers six comprehensive measures for controlling sediment entering the Three-Gorge Project Reservoir.

关 键 词：沙量平衡 三峡水库 嘉陵江 控制 

分 类 号：P641.6[天文地球—地质矿产勘探]