文献类型：期刊文献

中文题名：杭州湾及邻近水域营养盐的时空分布与富营养化特征

英文题名：Characteristics of nutrients and eutrophication in the Hangzhou Bay and its adjacent waters

作者：高生泉[1];陈建芳[1];金海燕[1];王奎[1];卢勇[1];李宏亮[1];陈法锦[1,2]

机构：[1]国家海洋局第二海洋研究所,国家海洋局海洋生态系统与生物地球化学重点实验室,浙江杭州310012;[2]广东海洋大学海洋与气象学院,广东湛江524088

年份：2011

卷号：29

期号：3

起止页码：36

中文期刊名：海洋学研究

外文期刊名：Journal of Marine Sciences

收录：CSTPCD

基金：国家海洋公益性行业科研专项经费资助项目(201105014);“908”专项资助项目(908-ZC-Ⅰ-03);国家自然科学基金资助项目(41006045);国家海洋局第二海洋研究所基本科研业务费专项资助项目(JG200820)

语种：中文

中文关键词：营养盐;N/P;分布特征;富营养化;杭州湾

外文关键词：nutrient; N/P; characteristics of distribution; eutrophication; Hangzhou Bay

中文摘要：利用2006年7月—2007年11月杭州湾及邻近水域春、夏、秋、冬四个季节的调查资料,对其营养盐的分布变化及富营养化特征进行了分析。结果表明:杭州湾及邻近水域营养盐的分布变化和富营养化不仅与湾内河流高DIN、磷、硅的输入直接有关,同时受长江冲淡水的影响十分显著。湾内营养盐的分布变化主要受物理混合作用所控制,浮游生物活动对营养盐分布的影响相对较小;春、冬季在中、低盐度区高悬浮颗粒物表现出对磷酸盐的吸附—解吸的"缓冲"现象,而舟山群岛部分水域春、夏季生物作用可成为影响营养盐分布变化的重要因素。杭州湾水域四季均处于严重的富营养化状态,而过量DIN的输入和高N/P值且持续升高的趋势是杭州湾及邻近水域严重富营养化的重要特征。

外文摘要：The characteristics of nutrient distributions and eutrophication in the Hangzhou Bay and its adjacent waters were described and analyzed based on the data obtained on four cruises of spring,summer,autumn and winter,from July,2006 to November,2007.The results showed that distributions and variations of nutrient were not only related to input of DIN,phosphorus and silicon directly from rivers around Hangzhou Bay,but also influenced greatly by Changjiang River diluting waters.The distributions of nutrient were mainly controlled by physical mixing of diluting water with seawater and biological and chemical removal was relatively insignificant in this area.Behavior of phosphate was indicative of a ＂buffering＂ effect by sorption and desorption of PO3-4-P on suspended matter in spring and in winter and biological activities in some areas of Zhoushan Islands was considered to be an important factor of influence on nutrient distribution in spring and in summer.The concentrations of DIN,phosphate and silicate in the Hangzhou Bay were quite high and showed rich-nutrients condition around year.DIN overload and extra high N/P ratio in Hangzhou Bay and its adjacent waters may be one of factors of the stress of coastal eutrophication.