东海至楚科奇海表层海水叶绿素a分布研究

发布时间：2019-02-22 09:43

【摘要】：利用2014年夏季中国第6次北极科考获得的连续表层海水叶绿素a浓度、温度和盐度数据,研究东海至楚科奇海表层海水叶绿素a分布及影响因素。结果表明,东海至白令海以南太平洋海域叶绿素a浓度平均值2.767 mg/m~3,变化范围0.386~8.642 mg/m~3,变化趋势由西南至东北先增加后减少,白令海至楚科奇海海域叶绿素a浓度平均值1.166 mg/m~3,变化范围0.06~8.283 mg/m~3,变化趋势由南至北递减。采用Pearson相关性分析,结果表明,对于浮游植物生长来说,东海至白令海以南太平洋海域夏季过高的温度和光照水平是不利因素,盐度影响很小,白令海至楚科奇海海域较低的盐度水平则是不利因素,温度和光照水平影响很小。另一个重要影响因素营养盐水平则是跟研究海域洋流变化有关。
[Abstract]:Based on the data of chlorophyll a concentration, temperature and salinity obtained from the 6th Arctic Survey of China in the summer of 2014, the distribution of chlorophyll a in the surface water from the East China Sea to the Chukchi Sea and its influencing factors were studied. The results showed that the mean value of chlorophyll a concentration in the South Pacific from the East China Sea to the Bering Sea was 2.767 mg/m~3,. The variation trend of chlorophyll a mg/m~3, increased first from southwest to northeast and then decreased from southwest to northeast. The mean value of chlorophyll a concentration from Bering Sea to Chukchi Sea is 1.166 mg/m~3,. The variation trend of chlorophyll a mg/m~3, decreases from south to north. Using Pearson correlation analysis, the results show that the high temperature and light levels in the South Pacific Ocean from the East China Sea to the Bering Sea are unfavorable factors for phytoplankton growth, and the salinity has little effect on the growth of phytoplankton. The lower salinity level from Bering Sea to Chukchi Sea is a disadvantage factor, and the influence of temperature and light level is very small. Another important factor, nutrient level, is associated with ocean currents.
【作者单位】：同济大学环境规划与管理研究所;中国极地研究中心极地信息中心;中国极地研究中心雪龙船;
【基金】：国家自然科学基金(41406213) 上海市科学技术委员会科研计划课题(15dz1208103)
【分类号】：P734

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