...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Oceanographic Literature Review >Planktonic ecosystems
【24h】

Planktonic ecosystems

机译：浮游生物生态系统

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Arctic Ocean is warming at two to three times the global rate and is perceived to be a bellwether for ocean acidification. Increased CO_2 concentrations are expected to have a fertilization effect on marine autotrophs, and higher temperatures should lead to increased rates of planktonic primary production. Yet, simultaneous assessment of warming and increased CO_2 on primary production in the Arctic has not been conducted. Here we test the expectation that CO_2-enhanced gross primary production (GPP) may be temperature dependent, using data from several ocean-ographic cruises and experiments from both spring and summer in the European sector of the Arctic Ocean. Results confirm that CO_2 enhances GPP (by a factor of up to ten) over a range of 145-2,099μatm; however, the greatest effects are observed only at lower temperatures and are constrained by nutrient and light availability to the spring period. The temperature dependence of CO_2-enhanced primary production has significant implications for metabolic balance in a wanner, CO_2-enriched Arctic Ocean in the future. In particular, it indicates that a twofold increase in primary production during the spring is likely in the Arctic.
机译：北冰洋正以全球速度的两到三倍变暖，被认为是海洋酸化的领头羊。预计增加的CO_2浓度会对海洋自养生物产生施肥作用，而较高的温度应导致浮游初级生产力的增加。然而，尚未同时评估北极地区初级生产的变暖和CO_2增加。在这里，我们使用北冰洋欧洲部分地区几次海洋巡游的数据以及春季和夏季的实验，测试了CO_2增强的初级总产值（GPP）可能与温度有关的预期。结果证实，CO_2在145-2,099μatm的范围内增强了GPP（最多提高了十倍）。但是，只有在较低的温度下才能观察到最大的影响，并且受春季营养物和光的供应的限制。将来，CO_2增强的初级生产对温度的依赖性将对日益贫乏的富含CO_2的北冰洋的代谢平衡产生重要影响。特别是，这表明北极地区春季的初级生产可能增加两倍。

著录项

  • 来源
    《Oceanographic Literature Review》 |2016年第2期|327-328|共2页
  • 作者

  • 作者单位
  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号