赣江水沙关系变化模拟

Simulation of the relationship variation between water and sediment of Ganjiang River

利用赣江上游坝上、峡山、翰林桥、居龙滩水文站、中游峡江水文站和下游外洲水文站1957~2010年径流量与悬移质泥沙输沙量监测资料,分析赣江水沙关系特征和水沙关系的多年变化情况;通过经验模拟,探讨水沙关系变化的原因与发展趋势.结果表明,无论是上游（赣州）、中游峡江站,还是下游外洲站,年输沙量与年径流量相关点群均呈双层分布,分层时间（年份）节点有所不同.

The characteristics of the relationship between water and sediment and the secular variation of the relationship between water and sediment are analyzed by making use of the monitoring data of the runoff and the suspended sediment discharge from1957 to 2010 in Bashang,Xiashan,Hanlinqiao and Julongtan hydrologic station of the upstream of Ganjiang River,Xiajiang hydrological station of the middle reaches of Ganjiang River and Waizhou hydrological station of the downstream of Ganjiang River.The causes and development trend of water sediment relationship is explored based on the experience of simulation.The results show that both the upstream（Ganzhou station）,the middle reaches（Xiajiang station）and the downstream（Waizhou station）,the annual sediment yield is the layered distribution. The layered time（year） node is different.