CAJ | 학술논문

利用2007年12月至2008年11月对广西沿海4个海湾红树林区进行系统调查的数据资料，分析不同海湾红树林区Si含量的变化特征及其与环境因素的关系。结果表明，广西海湾红树林区Si含量较高，年平均值高达52.26μmol·dm-3，明显高于20世纪80年代河口区的30.83μmol·dm-3；在季节上主要依赖于径流的变化而呈夏高、冬低，春、秋季适中的特征，区域分布亦具有随S下降而增加，随硅藻占浮游植物比例上升而下降的良好规律，依次排列为廉州湾＞钦州湾＞珍珠湾＞铁山港红树林区。相关分析显示，影响研究海区Si含量变化的主要因素是陆源径流与海水的物理混合过程，其次是生物作用，有机体分解的化学过程影响相对较小。Si与N、P营养盐的关系极为密切，其中Si与N的同源性极好，4个季节均达到了非常显著（p值<0.01）的正相关水平；而Si与P含量之间却出现明显分区现象，海湾特征尤为突出。
이용2007년12월지2008년11월대엄서연해4개해만홍수림구진행계통조사적수거자료，분석불동해만홍수림구Si함량적변화특정급기여배경인소적관계。결과표명，엄서해만홍수림구Si함량교고，년평균치고체52.26μmol·dm-3，명현고우20세기80년대하구구적30.83μmol·dm-3；재계절상주요의뢰우경류적변화이정하고、동저，춘、추계괄중적특정，구역분포역구유수S하강이증가，수규조점부유식물비례상승이하강적량호규률，의차배렬위렴주만＞흠주만＞진주만＞철산항홍수림구。상관분석현시，영향연구해구Si함량변화적주요인소시륙원경류여해수적물리혼합과정，기차시생물작용，유궤체분해적화학과정영향상대교소。Si여N、P영양염적관계겁위밀절，기중Si여N적동원성겁호，4개계절균체도료비상현저（p치<0.01）적정상관수평；이Si여P함량지간각출현명현분구현상，해만특정우위돌출。
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.