治江缩窄条件下钱塘江河口段滩涂资源变迁及趋势分析  

Beach Resources Evolution and Trend Analysis of Qiantang River Estuary Section under the Condition of Narrowing River

作　　者：唐子文[1,2] 曹颖[1,2] 

机构地区：[1]浙江省水利河口研究院,浙江杭州310020 [2]浙江省河口海岸重点实验室,浙江杭州310020

出　　处：《浙江水利科技》2016年第2期20-22,25,共4页Zhejiang Hydrotechnics

基　　金：水利部公益性行业科研专项(201401010);浙江省科研院所专项(2015F30004);浙江省水利科技计划项目(RB1516);浙江省科技计划项目(2014F10036;2014F10007);中央引导地方科技发展专项资金资助项目(财政[2014]183号)

摘　　要：利用钱塘江河口断面资料,统计了钱塘江河口段近60 a来滩涂资源总量,结合钱塘江河口的治江缩窄进展,分析了各段江道滩涂资源的总量变化以及相对变化。结果表明:随着钱塘江河口段治江缩窄的不断推进,河口段滩涂资源不断减小,但由于缩窄后潮量减小,河口出现淤积,滩涂资源总量(已围面积加上围区外滩涂面积)不断增加;滩涂资源分布随着治江缩窄的推进不断下移,鼠尾山至澉浦河段逐渐成为滩涂资源分布的主要河段。Using the data of Qiantang River estuary section,this paper summed up the total beach resources of Qiantang River estuary in recent 60 years. Combining with the narrowing progress of Qiantang River estuary,it analyzed the total amount change and relative change of each segment＇ s river channel tidal resources. The result shows that with the segment of Qiantang River estuary narrowing steadily,estuary beach resources continued to decrease; but after narrowing,estuary was deposited due to the reduced amount of tide,and total beach resources（ already reclaimed area plus the beach area outside the reclaimed area） increased. With the progress of narrowing, distribution of tide flat resources shifted downstream,the river reach from Shuwei Hill to Ganpu gradually became the main area for tide flat resources distribution.

关 键 词：钱塘江 河口段 滩涂资源 

分 类 号：TV149[水利工程—水力学及河流动力学]