文献类型：期刊文献

中文题名：湛江湾大气湿沉降中营养盐的研究

英文题名：Nutrients in atmospheric wet deposition in the Zhanjiang Bay

作者：陈法锦[1];陈淳青[1];周凤霞[1];劳齐斌[1];朱庆梅[1];张书文[1];

机构：[1]广东海洋大学海洋与气象学院广东省近海海洋变化与灾害预警重点实验室;

年份：2017

期号：6

起止页码：2055

中文期刊名：中国环境科学

外文期刊名：China Environmental Science

收录：EI(收录号：20173404075794)、Scopus(收录号：2-s2.0-85027840212)

基金：国家自然科学基金资助项目(41476066,41476010);广东省自然科学基金资助项目(2016A030312004);广东省高等学校优秀青年教师培养计划项目(Yq2014004);广东海洋大学创新强校项目(GDOU2014050201);广东海洋大学校选项目(1312437)

语种：中文

中文关键词：大气湿沉降;营养盐;富营养化;湛江湾

外文关键词：atmosphere wet deposition;nutrient;eutrophication;Zhanjiang Bay

中文摘要：于2015年5月2016年4月对湛江湾的雨水样品进行了收集,测定了雨水中NO2-、NO3-、PO43-和SiO32-的浓度,分析了它们的浓度及湿沉降通量的变化情况,并讨论了湿沉降营养盐对海水生态系统的影响.结果表明,受厄尔尼诺影响,调查期间的年降雨量明显高于多年平均降雨量.雨水中NO2-和SiO32-的浓度在夏季和秋季较高,NO3-和PO43-的浓度在春季和冬季较高,它们的湿沉降通量均在秋季最高（平均超过全年湿沉降通量的50%）.降雨量、不同来源的气团、当地的人类活动情况等是影响湛江湾湿沉降营养盐浓度和通量的主要因素,秋季湿沉降通量最高与该季节有超强台风过境有关.雨水每年给湛江湾带来的NO2--N、NO3--N、PO43--P和SiO32--Si的量分别为2.04、292.4、8.13和45.8t.秋季雨水的沉降可能在短时间内对海水中的浮游植物生长有促进作用,其他季节的促进作用可能在短时间内不明显.

外文摘要：The nutrients in atmospheric wet deposition in the Zhanjiang Bay and their impacts on the marine ecosystems were studied based on the rainwater investigation from May 2015 to April 2016. The results showed that the rainfall during the year of investigation was significantly higher than the average annual rainfall due to the influence of El Nino. In rainwater, NO2- and SiO32- concentrations were relatively high in summer and autumn, while NO3- and PO43- concentrations were relatively high in spring and winter. The deposition fluxes of these nutrients were all highest in autumn, with a high average contribution (larger than 50%) to the wet deposition fluxes in a whole year. These seasonal variations were affected by rainfall, different sources of air masses, local human activities. A super typhoon passing by in autumn, which brought heavy rains, contributed much to the highest deposition fluxes of nutrients in autumn. The wet deposition could bring 2.04, 292.4, 8.13 and 45.8t/a of NO2--N, NO3--N, PO43--P and SiO32--Si into the Zhanjiang Bay. Their deposition in autumn might cause phytoplankton to increase in seawater in short period, while in other seasons this phenomenon might be absent.