Eutrophication of Jiangsu Coastal Water and Its Role in the Formation of Green Tide  

作　　者：XIAO Mingyan SONG Weina ZHANG Haibo SHI Xiaoyong SU Rongguo 

机构地区：[1]Key Laboratory of Marine Chemistry Theory and Technology,Ministry of Education,Ocean University of China,Qingdao 266100,China [2]National Marine Environmental Monitoring Center,Dalian 116000,China [3]National Marine Hazard Mitigation Service,Beijing 100194,China

出　　处：《Journal of Ocean University of China》2024年第1期109-118,共10页中国海洋大学学报（英文版）

基　　金：supported by the Joint Fund between NSFC and Shandong Province(No.U1906210);the China National Key Research and Development Program(No.2016YFC1402101).

摘　　要：Since 2007,the large-scale green tide caused by Ulva prolifera(U.prolifera)have occurred as a recurrent phenomenon in the southern Yellow Sea of China.Field surveys and satellite remote sensing showed that the small scattered patches of green tide algae were first observed along the Porphyra agriculture area of the Subei Shoal in late April.In this study,we attempted to identify the role of eutrophication in the origin of the green tide in the Subei Shoal and its adjacent area.Subei Shoal and its adjacent area are characterized by rich nutrients,especially NO_(3)^(-)-N,NH_(4)^(+)-N,PO_(4)^(3-)-P,and other bioavailable components(such as urea-N and amino acids).In the spring of 2017,the average concentrations of NO_(3)^(-)-N were 19.01±11.01μmolL^(-1),accounting for 86.68%of the dis-solved inorganic nitrogen(DIN).In addition,the average concentration of NH4^(+)-N was 2.51±1.60μmolL^(-1).PO_(4)^(3-)-P had an average concentration of 0.14±0.13μmolL-1.The average concentrations of urea-N and total hydrolyzed amino acids(THAA)were 1.73±1.36μmolL^(-1)and 1.33±0.80μmolL^(-1),respectively.Rich nutritive substances play a key role in the rapid production of U.prolifera and make the Jiangsu coastal water an incubator for green tide.

关 键 词：green tide NUTRIENTS ALGAE Ulva prolifera EUTROPHICATION Subei Shoal 

分 类 号：X52[环境科学与工程—环境工程]