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首页> 外文期刊>Estuarine Coastal and Shelf Science >The renaissance of Odum's outwelling hypothesis in 'Blue Carbon' science
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The renaissance of Odum's outwelling hypothesis in 'Blue Carbon' science

机译：“蓝碳”科学中的Odum住院假设的文艺复兴

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The term 'Blue Carbon' was coined about a decade ago to highlight the important carbon sequestration capacity of coastal vegetated ecosystems. The term has paved the way for the development of programs and policies that preserve and restore these threatened coastal ecosystems for climate change mitigation. Blue carbon research has focused on quantifying carbon stocks and burial rates in sediments or accumulating as biomass. This focus on habitat-bound carbon led us to losing sight of the mobile blue carbon fraction. Oceans, the largest active reservoir of carbon, have become somewhat of a blind spot. Multiple recent investigations have revealed high outwelling (i.e., lateral fluxes or horizontal exports) of dissolved inorganic (DIC) and organic (DOC) carbon, as well as particulate organic carbon (POC) from blue carbon habitats. In this paper, we conceptualize outwelling in mangrove, saltmarsh, seagrass and macroalgae ecosystems, diagnose key challenges preventing robust quantification, and pave the way for future work integrating mobile carbon in the blue carbon framework. Outwelling in mangroves and saltmarshes is usually dominated by DIC (mostly as bicarbonate), while POC seems to be the major carbon species exported from seagrass meadows and macroalgae forests. Carbon outwelling science is still in its infancy, and estimates remain limited spatially and temporally. Nevertheless, the existing datasets imply that carbon outwelling followed by ocean storage is relevant and may exceed local sediment burial as a long-term (centuries) blue carbon sequestration mechanism. If this proves correct as more data emerge, ignoring carbon outwelling may underestimate the perceived sequestration capacity of blue carbon ecosystems.
机译：第十十年前，术语“蓝碳”是突出的，突出了沿海植被生态系统的重要碳封存能力。该术语已经为制定保护和恢复这些受威胁的沿海生态系统的计划和政策为气候变化缓解了途径。蓝碳研究专注于量化沉积物中的碳储备和埋藏率或累积为生物量。这种关注栖息地碳的焦点使我们失去了移动蓝色碳分数。海洋是最大的活跃的碳源水库，已经有所盲目的盲点。多次研究揭示了溶解的无机（DIC）和有机（DIC）碳的高分子（即侧助势或水平出口），以及来自蓝元碳栖息地的颗粒有机碳（PoC）。在本文中，我们在红树林，Saltmarsh，Seagrass和Macroalgae生态系统中概念化，诊断了预防鲁棒量化的关键挑战，并为未来工作整合到蓝碳框架中的移动碳铺平了道路。在红树林和盐渣中留下通常由DIC（大多是碳酸氢盐）主导，而PoC似乎是从海草草甸和宏观甘格斯森林出口的主要碳物种。碳存放科学仍处于起步阶段，估计在空间和时间仍然存在限制。然而，现有数据集意味着碳存放随后是海洋储存的相关性，可能超过局部沉积物作为长期（＆世纪）的蓝碳封存机制。如果这被证明是更好的数据出现，忽略碳遗养可能低估了蓝碳生态系统的感知封存能力。

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  • 来源
    《Estuarine Coastal and Shelf Science》 |2021年第5期|107361.1-107361.11|共11页
  • 作者

    Santos Isaac R.; Burdige David J.; Jennerjahn Tim C.; Bouillon Steven; Cabral Alex; Serrano Oscar; Wernberg Thomas; Filbee-Dexter Karen; Guimond Julia A.; Tamborski Joseph J.;

  • 作者单位

    Univ Gothenburg Dept Marine Sci Gothenburg Sweden|Southern Cross Univ Natl Marine Sci Ctr Coffs Harbour Australia;

    Old Dominion Univ Dept Ocean & Earth Sci Norfolk VA USA;

    Leibniz Ctr Trop Marine Res Fahrenheitstr6 Bremen Germany|Univ Bremen Fac Geosci Klagenfurter Str Bremen Germany;

    Katholieke Univ Leuven Dept Earth & Environm Sci Leuven Belgium;

    Univ Gothenburg Dept Marine Sci Gothenburg Sweden;

    Edith Cowan Univ Sch Sci Joondalup WA Australia|Edith Cowan Univ Ctr Marine Ecosyst Res Joondalup WA Australia|CSIC Ctr Estudios Avanzados Blanes Blanes Spain;

    Univ Western Australia Sch Biol Sci Perth WA Australia|Univ Western Australia UWA Oceans Inst Perth WA Australia|Inst Marine Res His Norway;

    Univ Western Australia Sch Biol Sci Perth WA Australia|Univ Western Australia UWA Oceans Inst Perth WA Australia|Inst Marine Res His Norway;

    Dalhousie Univ Dept Civil & Resource Engn Halifax NS Canada;

    Old Dominion Univ Dept Ocean & Earth Sci Norfolk VA USA;

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  • 正文语种 eng
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  • 关键词

    Coastal carbon; Alkalinity; Detritus; Carbon sequestration;

    机译：沿海碳;碱度;滴灌;碳封存;

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