大亚湾海区营养盐的变化及富营养化研究  

Study on Eutrophication and Change of Nutrients in the Daya Bay

作　　者：彭云辉[1] 孙丽华[1] 陈浩如[1] 王肇鼎[1] 

机构地区：[1]中国科学院南海海洋研究所,广东广州510301

出　　处：《海洋通报》2002年第3期44-49,共6页Marine Science Bulletin

基　　金：中国科学院创新课题(KZCX2-403-04)资助

摘　　要：根据年月冬,月(春,月(夏)和月(秋)个季节对大亚湾海区的监测,选 1999 1 ()4 )7 10 4 用一种新分类分级的营养化评价模式,评价了大亚湾海区的富营养水平;根据历史资料,分析了大亚湾海区近十多年来氮、磷营养盐的变化趋势,并与中国沿海几个海湾作了对比。结果表明,大亚湾海区冬、春、夏三季的水质属贫营养水平,秋季有个别站位水质属磷限制中度营养水平和磷限制潜在性富营养水平;大亚湾海区水中总溶解无机氮()呈逐年增加趋势,而磷酸盐(TINPO4)则呈逐年下降趋势,在中-P国沿海几个海湾中,大亚湾水中营养盐含量较低。In this paper eutrophication in the Daya Bay is assessed with a new model ofclassifying nutrient to analyze the monitoring data of January, April, July, and October of 1999 in the Daya Bay. Change tendecy of nutrients in the Daya Bay is analyzed based on data in resent years . Results show that the water quality in winter, spring, and summer is of a lower nutritive level, while in autumn there are a couple of stations with limitation of phosphorus in the middle nutrient level and in the potentially eutrophic level. Total inorganic nitrogen (TIN) in the Daya Bay is increasing annually, while phosphate (PO4-P) decreasing gradually.

关 键 词：大亚湾 富营养化 赤潮 营养盐 

分 类 号：X820.1[环境科学与工程—环境工程] P734.44[天文地球—海洋化学]