沿海生态系统 -沿海生态系统概念图

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《Frontiers in Marine Science》电子书”从多学科角度看沿海生态系统的全球变化后果"发布

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FEC IPO FEC 未来地球海岸 2023-02-24

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《Frontiers in Marine Science》电子书“从多学科角度看沿海生态系统的

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全球变化后果”发布

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Frontiers in Marine Science e-book ‘Consequences of global change in coastal ecosystems from

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multidisciplinary perspective’ released

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Frontiers in Marine Science》发布的研究课题 "从多学科角度看沿海生态系统的全球变化后果"中的所有文章组成的电子书已经汇编完成,自2023年1月起可在网站上在线阅读。本期特刊强调需要以多学科视角解决多尺度问题,其中强调了关键的物理和环境问题:生物质损失、沿海保护和未来情景。

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Frontiers in Marine Science》 e-book, comprising all the articles featured in the Research Topic ‘Consequences of global change in coastal ecosystems from a multidisciplinary perspective’, has been compiled and is now available online on the website since January 2023. This special issue emphasises the need to address multi-scale problems with multidisciplinary perspectives in which key physical and environmental issues are highlighted: Biomass loss, Coastal protection, and Future scenarios. 

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Frontiers in Marine Science》电子书在线阅读:https://www.frontiersin.org/research-topics/23400/consequences-of-global-change-in-coastal-ecosystems-from-a-multidisciplinary-perspective

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研究课题主页访问:https://www.frontiersin.org/research-topics/23400/consequences-of-global-change-in-coastal-ecosystems-from-a-multidisciplinary-perspective

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由FEC执行主任,中国国际项目办公室主任方潇雨发表的题为"人类活动影响下河口生态系统功能变化的预测: 对全球变化时代的启示" 的论文被收录在该特刊中(https://www.frontiersin.org/articles/10.3389/fmars.2021.747833/full)。

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The paper entitled ‘Hindcasting Ecosystem Functioning Change in an Anthropogenized Estuary: Implications for an Era of Global Change’

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(https://www.frontiersin.org/articles/10.3389/fmars.2021.747833/full), authored by Dr. Xiaoyu Fang, the executive director of FEC also director of IPO China, was included in this special issue.

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摘要 Abstract

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要了解与气候变化和人为改造相关的水动力学变化如何影响浅海软沉积物环境的生态系统完整性,就要对物种种群在异质空间尺度上影响生态系统功能的方式进行全面综合。我们预测了1955年至2010年间潮间带栖息地的丧失和水动力机制的改变与地貌变化之间的关系,这种地貌变化是为了适应Western Scheldt河口人类活动的扩张,这种扩张改变了空间格局和生态系统功能的全流域评估。

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为此,我们将经验衍生的新陈代谢模型和种群物种生物量模型相结合,以此来研究普通沙蚕的生物扰动对沉积物生物地球化学特性的影响(以沉积物耗氧量测量)。据我们的综合建模方法预测,在1955年至2010年期间,沙蚕生物量总体减少了304吨,这导致研究区内沉积物耗氧量减少了28%。生境适宜性和生态系统功能的局部增减主要是由河道加深、疏浚和废弃导致的最大流速和淹没机制的变化所驱动。通过对过去的研究,我们证明了水文和形态动力学变化是如何影响沉积物生态特性的,并强调了综合框架对预测种群效应对生态系统功能影响的适用性。

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Understanding how altered hydrodynamics related to climate change and anthropogenic modifications affect ecosystem integrity of shallow coastal soft-sediment environments requires a sound integration of how species populations influence ecosystem functioning across heterogeneous spatial scales. Here, we hindcasted how intertidal habitat loss and altered hydrodynamic regimes between 1955 and 2010 associated with geomorphological change to accommodate expansion in anthropogenic activities in the Western Scheldt altered spatial patterns and basin-wide estimates of ecosystem functioning. 

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To this end we combined an empirically derived metabolic model for the effect of the common ragworm Hediste diversicolor on sediment biogeochemistry (measured as sediment oxygen uptake) with a hydrodynamic and population biomass distribution model. Our integrative modeling approach predicted an overall decrease by 304 tons in ragworm biomass between 1955 and 2010, accounting for a reduction by 28% in stimulated sediment oxygen uptake at the landscape scale. Local gains or losses in habitat suitability and ecosystem functioning were primarily driven by changes in maximal current velocities and inundation regimes resulting from deepening, dredging and disposal practices. By looking into the past, we have demonstrated how hydro- and morphodynamic changes affect soft-sediment ecology and highlight the applicability of the integrative framework to upscale anticipated population effects on ecosystem functioning.

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