摘要
为了更好的了解防城港东西湾浮游植物群落情况，于2012年夏季在防城港东西湾108.30°-108.40°E、21.52°-21.71°N范围海域进行浮游植物生态调查和水质调查，分析了该海域浮游植物的种类组成、优势种、群落结构的多样性特征及水质评价。调查共发现浮游植物44种，其中硅藻种类最多，达42种，各测站的H ＇、J ＇、D值范围分别为0.99-2.95、0.22-0.94和1.26～2.67之间；水质调查结果为COD含量均达到第一类海水水质标准，DIP、DIN的含量在海湾的入海河口区域出现有超第四类海水水质标准海水，营养盐指数在0.17～11.09之间，平均值2.98，Redfield比值在10.0～20.0之间，平均值14.8，小于16的Redfield比值。防城港东西湾海域的浮游植物种类较少，结构比较单一，水质呈富营养化状态，氮是影响该海域的浮游植物细胞数量的主要限制因子。
In order to better understand the Fangchenggang East Bay phytoplankton community, in the summer of 2012 to investigate phytoplankton ecology investigation and water quality in the Fangchenggang East Bay 108.30 °-108.40 ° E, 21.52 °-21.71 ° N range area, analyzed the evaluation of water quality characteristics of diversity and species composition, dominant species, the phytoplankton community structure. The survey found a total of 44 kinds of phytoplankton, the diatom species, up to 42, the station of H ＇, J＇, D value were 0.99-2.95, 0.22-0.94 and 1.26-2.67; water quality survey results for the COD content reached the first class of sea water quality standard, the content of DIP, DIN in the estuary Bay region there are over fourth kinds of sea water quality standard sea water, nutrient index is between 0.17-11.09, with an average value of 2.98, the ratio of Redfield between 10.0-20.0, with an average value of 14.8, less than Redfield ratio of 16. Small phytoplankton species Fangchenggang East Bay, structure is simple, the water is the state of eutrophication, nitrogen is the main factor affecting the marine phytoplankton cell number.
出处
《大众科技》
2014年第8期62-65,共4页
Popular Science & Technology
