德国海湾海带造林可行性研究:海裙带菜的栖息地可用性和光照要求

IF 2.1 4区 地球科学 Q2 MARINE & FRESHWATER BIOLOGY
Florian Stahl , Lea Kappas , Florian Uhl , Natascha Oppelt , Kai Bischof
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引用次数: 0

摘要

除了急需的二氧化碳减排外,探索和实施碳清除战略对于减少人为气候变化影响也至关重要。沿海植被生态系统(CVEs)对二氧化碳的封存提供了一种基于自然的解决方案。海藻林就是这些生态系统中的一种,它是最具生产力和多样性的海洋生态系统之一。尽管二氧化碳封存潜力仍在讨论之中,但近年来,海藻林在蓝碳框架内被越来越多地提及。由于全世界的海藻森林都在减少,仅仅保护这些栖息地是不够的,还必须扩大现有的海藻森林,甚至建立新的海藻森林。作为海利戈兰岛周围潜在的海藻林扩展乃至德国港湾植树造林措施的基准研究,我们调查了褐藻层藻的光照需求和原地光照气候。我们的研究结果表明,在夏季条件下,海草的补偿辐照度为 30 μmol m-2 s-1,局部深度限制为 12.8 米。因此,我们计算出海利戈兰周围适合海带生长的光照条件的总面积约为 24.1 平方公里。结合海带的最低光照要求、水下光衰减和水深图,我们可以根据海带的生理需求了解其栖息地要求,并帮助确定德国港湾内合适的植树造林地点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Feasibility study for kelp afforestation in the German Bight: Habitat availability and light requirements of Laminaria hyperborea

Besides the much-needed reduction of CO2 emissions, exploring and implementing carbon removal strategies is essential to reduce the impact of man-made climate change effects. The sequestration of CO2 by coastal vegetated ecosystems (CVEs) presents a natural and nature-based solution. One of these CVEs is kelp forests, which are amongst the most productive and diverse marine ecosystems. Although their CO2 sequestration potential is still being discussed, kelp forests have been increasingly mentioned within the blue carbon framework in recent years. As kelp forests worldwide are in decline, it is not sufficient to conserve these habitats, but expanding the existing and even establishing new sites is essential. As a baseline study for potential kelp forest expansion around the island of Heligoland and even afforestation measures in the German Bight, we investigated the light requirements of the brown alga Laminaria hyperborea and the in situ light climate. Our results point to a compensation irradiance of 30 μmol m−2 s−1 and a local depth limit of 12.8 m for L. hyperborea under summer conditions. Consequently, we calculated the total area with suitable light conditions for kelp growth around Heligoland to be about 24.1 km2. Combining the kelps minimum light requirement, underwater light attenuation, and bathymetric maps, provides an understanding of habitat requirements based on the physiological needs of L. hyperborea and helps to identify suitable afforestation sites within the German Bight.

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来源期刊
Journal of Sea Research
Journal of Sea Research 地学-海洋学
CiteScore
3.20
自引率
5.00%
发文量
86
审稿时长
6-12 weeks
期刊介绍: The Journal of Sea Research is an international and multidisciplinary periodical on marine research, with an emphasis on the functioning of marine ecosystems in coastal and shelf seas, including intertidal, estuarine and brackish environments. As several subdisciplines add to this aim, manuscripts are welcome from the fields of marine biology, marine chemistry, marine sedimentology and physical oceanography, provided they add to the understanding of ecosystem processes.
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