论文部分内容阅读
具有生物活性的元素Fe被认为限制了海洋生物生产力,其在海洋生态系统中的生物地球化学循环对全球碳循环起到调节作用,全球40%～50%的海洋因“高叶绿素低营养盐”(HNLC)“缺Fe”而初级生产力较低。然而,关于生物活性元素Fe的研究不仅涉及海洋科学,还与大气科学、环境科学、地球科学等学科紧密联系。近些年,围绕生物活性元素“Fe”开展的研究不仅是地球科学领域的前沿问题,还是海洋学家与环境学家共同关注的热点问题。目前,尽管对于生物活性元素Fe的研究已取得很大的进展,但模型、室内实验及野外观测之间仍存在很大的挑战与不确定性。系统地总结了生物活性元素Fe最重要的自然来源方式,详细介绍了影响生物活性元素Fe溶解度的主要因素,最后,对将来的工作提出建议,为我国未来开展类似的研究提供参考。
Biologically active elemental Fe is thought to limit the productivity of marine organisms. Its biogeochemical cycles in marine ecosystems play a regulatory role in the global carbon cycle. 40% to 50% of the world’s oceans suffer from “high chlorophyll low nutrient ”(HNLC) “ lack of Fe ”while primary productivity is low. However, the study on biologically active elemental Fe not only involves marine science, but also closely links with disciplines such as atmospheric science, environmental science and earth science. In recent years, the research on bioactive element “Fe” has not only been a frontier issue in the field of geosciences, but also a hot issue that oceanographers and environmentalists are concerned about. At present, although great progress has been made in the research of bioactive element Fe, there are still great challenges and uncertainties between the model, laboratory experiment and field observation. The most important natural source of biologically active element Fe is systematically summarized. The main factors influencing the solubility of bioactive element Fe are introduced in detail. Finally, some suggestions for future work are put forward to provide reference for the future research in China.