摘要
利用七堡、闸口站多年实测潮汐资料,分析了钱塘江河口段潮汐特征的变化。结果表明,近40年来,由于受大面积围涂和上游来水条件等的综合影响,河口潮汐呈明显增强态势,表现为潮汐次数增加、低潮位降低、高潮位抬高、涨潮历时缩短、江水含氯度增大。建议重视围涂治江所带来的负面影响。
Based on years of observed tidal data from Qibao and Zhakou stations, the changes of tide in the Qiantang Estuary were analyzed. The results showed that in the last 40 years, because of the synthetical influence d extensive reclamation and upstream runoff conditions, changes of the fide in the estuary were enhanced including more frequent tides, decreased low tidal stage, increased high tidal stage, shortened flood tidal duration, and higher chlorinity of river water. It can be concluded that more attention should be paid to the negative impacts of reclamation and regulation of the estuary on tidal change.
出处
《水利水电科技进展》
CSCD
北大核心
2008年第6期32-35,共4页
Advances in Science and Technology of Water Resources
关键词
钱塘江
河口治理
潮汐变化
围涂治江
Qiantang River
regulation of estuary
tidal changes
reclamation
