摘要
根据2008年茅尾海海域水质调查结果,采用营养指数法、营养状态质量指数法、有机污染指数法对海湾营养状况进行了评价,并结合2007年入海污染源调查结果,探讨了茅尾海的营养盐来源。结果表明：茅尾海受无机氮污染较重,海域处于呈富营养状态,有机污染程度属2级,表明开始受到有机污染。营养盐高值区集中在北部海域和东部海域。钦江、茅岭江等入海河流携带入海的营养盐是海域营养的主要来源,占入海污染物总量的79%以上,其次来自钦州湾外海的混合排污口。2001~2007年茅尾海DIN、DIP年均浓度分别与入海河流氮、磷营养盐入海负荷呈显著正相关,两者的相关系数分别为0.873和0.824。
Based on the water quality data collected from the Maowei Sea in 2008,the nutritional status is assessed by using eutrophication index,nutrition quality index,and organic pollution index.According to the pollution sources in 2007,the sources of nutrients are also analyzed.Results show that the Maowei Sea is seriously polluted by inorganic nitrogen,and the water quality is at eutrophic state.The organic pollution degree remains in the second level.The content of nutrient is relatively high in the north and the east of the Maowei Sea.The inputs of total nitrogen and total phosphorus through the Qin River and Maoling River are the main sources for nutrients,which account for 79% of the total nutrient discharge,followed by the mixed sewage outfall.Results also show a significant correlation between the load of nitrogen（or phosphorus） and the nutrient concentration in seawater,and the correlation coefficient is 0.873（or 0.824）.
出处
《生态科学》
CSCD
北大核心
2012年第5期572-576,共5页
Ecological Science
基金
中央级公益性科研院所基本科研业务费专项资金课题"典型海湾氮磷营养盐循环与总量控制研究(No.zx_200809_17)"
关键词
茅尾海
营养盐
富营养化
污染负荷
Maowei Sea
nutrient
eutrophication
pollution load
