广东海洋大学学报Issue(4)：76-82,7.
广西4大海湾红树林区硅含量的变化特征及其影响因素
Variation Change and Influence Factors of Silicon Content in 4 Mangrove Area Bays of Guangxi
摘要
Abstract
Based on the data from system surveys along the 4 mangrove area Bays in Guangxi from December 2007 to November 2008, it was the first time that the relationship had been analyzed totally between variation of silicon content in different mangrove areas and the environmental factors. The results are as follows:The annual average of Si content was high, 52.26 µmol·dm-3, in mangrove area of Guangxi bays, which was significantly higher than the estuary which was 30.83 µmol·dm-3 in 1980s. Seasonal change of Si content was low in summer but high in winter, while moderate in spring and autumn, which was rely on the change of runoff. The regional distribution of Si content in mangrove areas would decrease when S increased and the diatom was rich in phytoplankton. The order was Lianzhou Bay>Qinzhou Bay>Perl Bay>Tieshangang Bay. Correlation analysis showed that the elements affacted the Si content in descending order were physical mixing processes of terrestrial runoff and sea water, biological action, chemical process of organic decomposition. The content of Si had close relationship to the content of N and P nutrient, and there was highly significant positive correlation between Si and N content in the 4 seasons(p<0.01), but the relationship between Si and P content was different in 4 bays, which highlighted the feature of bays.关键词
广西4大海湾/红树林区/硅/含量变化/影响因素Key words
4 bays of Guangxi/Mangrove area/silicon/content change/influence factors分类
海洋科学引用本文复制引用
韦蔓新,何本茂,范航清,潘良浩,曹庆先..广西4大海湾红树林区硅含量的变化特征及其影响因素[J].广东海洋大学学报,2013,(4):76-82,7.基金项目
国家海洋公益性行业科研专项（201005012）；广西北部湾基础研究重大专项（2010GXNSFE013002）；广西红树林保护重点实验室项目 （）
