青堆子湾池塘养殖区及邻近海域无机营养盐时空变化与富营养化风险  

Temporal and Spatial Variation of the Inorganic Nutrients and the Risk Assessment of Eutrophication in Pond Aquaculture Area and Its Adjacent Sea Area of Qingduizi Bay

作　　者：杨晓龙[1,2] 齐爱民[1,2] 王丽丽[2] 宗虎民[2] 李强[1] 

机构地区：[1]大连海洋大学水产与生命学院,辽宁大连116023 [2]国家海洋环境监测中心,辽宁大连116023

出　　处：《安徽农业科学》2016年第25期83-86,共4页Journal of Anhui Agricultural Sciences

基　　金：海洋公益行业性科研专项(201105006)

摘　　要：[目的]研究青堆子湾池塘养殖区及邻近海域无机营养盐时空变化,评价其富营养化风险状况。[方法]根据2011年10月至2012年12月4个季节对青堆子湾池塘养殖区和邻近海域表层海水的无机营养盐调查,采用一种分类等级的海水富营养化评估模式,对该海域的营养化等级进行了评估。[结果]青堆子湾池塘养殖区和邻近海域营养盐含量呈显著的季节性变化,平面呈由养殖区向外海浓度逐渐降低的分布格局,受陆源污水排放和养殖活动影响;青堆子湾海域水质为中度营养等级,春夏季受氮限制,冬季受磷限制,可能面临赤潮暴发的危险,应加强陆源污水排放管理。[结论]青堆子湾池塘养殖区及邻近海域表层水体整体呈中度富营养化等级。[Objective] The aim was to study temporal and spatial variation of the inorganic nutrients in pond aquaculture area and its adjacent sea area of Qingduizi Bay,and evaluate its risk of eutrophication.[Method]Based on the investigation carried out in pond aquaculture area and its adjacent sea area of Qingduizi Bay from October 2011 to December 2012,a new classified model of eutrophication assessment was applied to e -valuate eutrophication levels in the study area.[Result] The average concentration of nutrient showed a significant seasonal variation.The spatial variations showed decreasing tendencies from the aquaculture area towards the outer sea .The temporal and spatial variations were affected by ter-rigenous sewage and aquaculture activities .The superficial seawater in Qingduizi Bay is at medium eutrophication level with nitrogen limitation during spring and summer and phosphorus limitation in winter .According to the assessment result,Qingduizi Bay is exposed to the danger of red tide.It is necessary to reinforce the management of pollutants discharged from ＂land sources＂.[Conclusion] The superficial seawater in pond aq-uaculture area and its adjacent sea area of Qingduizi Bay is at medium eutrophication level .

关 键 词：富营养化 青堆子湾 池塘养殖区 邻近海域 无机营养盐 

分 类 号：TS949[轻工技术与工程—服装设计与工程]