Analysis on the causes of massive stranding of Yellow Sea green tide on Lianyungang and Rizhao coasts in 2022  

作　　者：Lingjuan WU Juan HUANG Yi DING Guiyan LIU Shuai HUANG Song GAO Chao YUAN Jiangling XU Ping WU Rui HUANG Ruobing WEN Jie MEI 

机构地区：[1]North China Sea Marine Forecasting and Hazard Mitigation Center,Ministry of Natural Resources,Qingdao 266061,China [2]Shandong Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation,Qingdao 266061,China [3]National Engineering Laboratory for Integrated Aero-Space-Ground-Ocean Big Data Application Technology,Xi’an 710129,China [4]East China Sea Marine Forecasting and Hazard Mitigation Center,Ministry of Natural Resources,Shanghai 200136,China [5]North China Sea Ecological Center,Ministry of Natural Resources,Qingdao 266033,China

出　　处：《Journal of Oceanology and Limnology》2024年第3期816-830,共15页海洋湖沼学报（英文）

基　　金：Supported by the National Key R&D Program of China(No.2022YFC3106005);the Shandong Provincial Natural Science Foundation(No.ZR2021MD122);the MNR Key Laboratory of Eco-Environmental Science and Technology,China(No.MEEST-2023-04);the Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation(No.201708)。

摘　　要：In 2022,Yellow Sea green tide caused by Ulva prolifera reached a historic minimum and the coastal areas of Shandong Peninsula were less affected.However,the largest amount of seaweed biomass has been washed ashore on Lianyungang and Rizhao coasts since 2015.We studied the development pattern of Yellow Sea green tide in 2022,and analyzed the key environmental factors on the growth and drifting,then discussed the possible reasons that resulted in the massive stranding of green tide biomass in Lianyungang and Rizhao.Results show under the combined influence of the east to southeast winds and currents with shoreward anomalies,green tide drifted to the coastal waters between Shandong and Jiangsu provinces and the distribution areas located westward compared with previous years(2008–2021).Floating U.prolifera rafts from the coastal waters of Binhai and Sheyang drifted continuously into the coastal waters of Lianyungang and Rizhao,providing important supplements for Yellow Sea green tide.Because green tide in 2022 distributed close to the coastal waters,the abundant nutrients might support their continuous high growth rate.In addition,the amount of rainfall around Shandong Peninsula from late June to early July were significantly higher than in previous years,which might promote the development of green tide to some extent.

关 键 词：Yellow Sea green tide stranding biomass development pattern environmental factor 

分 类 号：X145[环境科学与工程—环境科学]