文献类型：期刊文献

中文题名：深圳湾海域营养盐的时空分布及潜在性富营养化程度评价

英文题名：Evaluation on temporal and spatial distribution of nutrients and potential eutrophication in Shenzhen Bay

作者：张静[1];张瑜斌[2];周凯[3];张际标[2];孙省利[2]

机构：[1]广东海洋大学水产学院,广东湛江524025;[2]广东海洋大学海洋资源与环境监测中心,广东湛江524025;[3]深圳市海洋与渔业环境监测站,广东深圳518049

年份：2010

卷号：19

期号：2

起止页码：253

中文期刊名：生态环境学报

外文期刊名：Ecology and Environmental Sciences

收录：CSTPCD、、CSCD2011_2012、北大核心2008、北大核心、CSCD

基金：广东省自主创新重大科技专项(2007A032600004);深圳市海洋局资助项目

语种：中文

中文关键词：深圳湾;营养盐;时空变化;Si∶N∶P比;潜在性富营养化评价

外文关键词：Shenzhen Bay nutrients temporal and spatial distribution Si：N：P potential eutrophication evaluation

中文摘要：根据深圳湾海域2008年2、5、8、11月4个航次的海水中营养盐监测数据,分析了深圳湾海域海水中营养盐的时空分布特征,应用Si:N:P比及潜在性富营养化评价模式对整个海域水质富营养化程度进行了评价。结果表明:深圳湾海域氮磷营养盐污染严重,劣于四类海水水质标准;且受珠江口水系夏季带来的高氮低磷低硅的海水的影响,整个深圳湾海水中氮磷硅营养盐的时空分布不尽相同:夏季DIN的分布由湾口向湾内逐渐降低;冬、春、秋3季DIN的分布和4个季节PO43--P、SiO32--Si的分布都是由湾内向湾口逐渐降低;受陆源输入的影响,秋季DIN和PO43--P表现出由西岸向东岸逐渐降低的趋势;受海底沉积物交换的影响,夏季SiO32--Si表现出由西岸向东岸逐渐升高的分布趋势。冬季整个海域都处于氮限制状态,基本无赤潮发生风险;春季整个海域基本处于富营养状态,是赤潮的高发期;夏季整个海域从湾内到湾口由氮限制逐渐过渡到磷限制状态,处于赤潮发生的危险期;秋季整个海域处于轻微的磷限制状态,也是深圳湾赤潮的高发期,但危险性较春季有所降低。

外文摘要：The temporal and spatial distribution of nutrients in Shenzhen Bay was analyzed based on the monitoring data from the four cruises in February,May,August and November in 2008.The value of Si：N：P and the mode of potential eutrophication were also applied to evaluate the eutrophic state of the whole sea water.The results indicated that the pollution of nitrogen and phosphorus were serious,and the water quality was lower than the fourth category national sea water quality standard.The temporal and spatial distribution of nitrogen,phosphorus and silicon in the sea water were different due to the high-nitrogen,low-phosphorus and low-silicon sea water from the Pearl River in summer：the distribution of DIN in summer decreased gradually from the bay mouth to the inner bay;however,the distribution of DIN in winter,spring and autumn and PO43--P,SiO32--Si in the four seasons decreased gradually from the inner bay to the bay mouth.Furthermore,the distribution of DIN and PO43--P in autumn had degressive trends from the west coast to the east coast by the influence of terrigenous input,and an ascensive trend was shown in the distribution of SiO32--Si in summer.In winter,the whole sea area was in nitrogen limited state,and red tide occurred infrequently.In spring,the whole sea area was basically in eutrophic state,and was in a high risk of red tide occurrence.In summer,the whole sea area from the inner bay to the bay mouth was restricted from nitrogen to phosphorus,and was in the risk period of red tide occurrence.In autumn,the whole sea area was in a slight state of phosphorus limit,and was also in a risk period of red tide occurrence,but the fatalness is lower than that in spring.