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亚洲大陆沙尘过程与北太平洋地区生物环境效应:以2001年4月中旬中亚特大沙尘暴为例 被引量:18

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摘要 铁肥料效应的验证一直是研究全球变化的热点问题.Bishop等在2001年4月观测到中亚沙尘越过北太平洋PAPA地区引起了该区海洋生物大幅增长的事实,为铁假说的成立提供了自然状态下最有力的沙尘-海洋过程生物环境效应证据.我们通过分析2001年4月中亚大陆强沙尘暴源区的中国大陆、沙尘远程传输区的韩国、日本及更遥远的美国的地面同步PM10观测资料以及同期在北太平洋地区海洋表层进行的有机碳和叶绿素观测资料,结合气象诊断和TOMS卫星气溶胶指标的分析,从大陆沙尘过程分析表明沙尘浓度由源地随着传输距离的增加而呈指数衰减,估算这场强沙尘暴过程可以为北太平洋PAPA地区带去3.1~5.8 μg/m3的风成Fe,导致了Bishop海洋实验过程中观测到了海洋生物的急剧增长,从而从大陆沙尘过程方面为铁假说在自然状态下的成立补充了更详细的证据.
出处 《科学通报》 EI CAS CSCD 北大核心 2005年第23期2649-2655,共7页 Chinese Science Bulletin
基金 国家自然科学基金项目(批准号:40421101,40075025) 国家重大基础研究发展规划项目专题(批准号:2OO5cB422000)共同资助.
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参考文献23

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二级参考文献14

  • 1方小敏,韩永翔,马金辉,宋连春,杨胜利,张小曳.青藏高原沙尘特征与高原黄土堆积:以2003-03-04拉萨沙尘天气过程为例[J].科学通报,2004,49(11):1084-1090. 被引量:69
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