CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China.
CAS Key Laboratory of Coastal Zone Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong 264003, China; Shandong Key Laboratory of Coastal Environmental Processes, Yantai, Shandong 264003, China; University of Chinese Academy of Sciences, Beijing 100049, China; Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, China.
Mar Pollut Bull. 2022 Sep;182:114036. doi: 10.1016/j.marpolbul.2022.114036. Epub 2022 Aug 16.
To determine the ecological effects of atmospheric wet deposition of dissolved nutrients on the coastal waters around the Yangma Island, rain and snow samples were collected and analyzed at a shore-based site for one year. The wet deposition fluxes of dissolved inorganic nitrogen and phosphorus (DIN and DIP) and dissolved organic nitrogen and phosphorus were 69.2, 0.136, 13.3 and 0.143 mmol m a, respectively. In summer, the new production fueled by wet deposition accounted for 19.3 % of that in seawater and 16.4 % of the amount of particulate organic carbon ingested by the scallops cultivated in the study area, indicating the potential contribution of wet deposition to fishery resources. Meanwhile, precipitation increased the seasonal average DIN/DIP ratios in surface seawater by 17.7 %, 16.3 %, 23.4 % and 6.5 % in spring, summer, autumn and winter, respectively, which could change the composition of ecological community and cause obvious negative impact on the ecosystem and mariculture.
为了确定大气溶解养分湿沉降对洋马岛周边海域的生态影响，在一个沿海站点采集并分析了为期一年的雨水和雪水样本。溶解无机氮和磷（DIN 和 DIP）以及溶解有机氮和磷的湿沉降通量分别为 69.2、0.136、13.3 和 0.143mmol m-2 a-1。在夏季，湿沉降所提供的新生产力占海水新生产力的 19.3%，占研究区域养殖扇贝摄食的颗粒有机碳的 16.4%，表明湿沉降对渔业资源具有潜在贡献。同时，降水分别使春季、夏季、秋季和冬季表层海水中的季节平均 DIN/DIP 比值增加了 17.7%、16.3%、23.4%和 6.5%，这可能改变生态群落的组成，并对生态系统和海水养殖业造成明显的负面影响。
