{"title":"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","authors":"Florian Stahl , Lea Kappas , Florian Uhl , Natascha Oppelt , Kai Bischof","doi":"10.1016/j.seares.2024.102512","DOIUrl":null,"url":null,"abstract":"<div><p>Besides the much-needed reduction of CO<sub>2</sub> emissions, exploring and implementing carbon removal strategies is essential to reduce the impact of man-made climate change effects. The sequestration of CO<sub>2</sub> 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 CO<sub>2</sub> 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 <em>Laminaria hyperborea</em> and the in situ <em>light</em> climate. Our results point to a compensation irradiance of 30 μmol m<sup>−2</sup> s<sup>−1</sup> and a local depth limit of 12.8 m for <em>L. hyperborea</em> under summer conditions. Consequently, we calculated the total area with suitable light conditions for kelp growth around Heligoland to be about 24.1 km<sup>2</sup>. 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. <em>hyperborea</em> and helps to identify suitable afforestation sites within the German Bight.</p></div>","PeriodicalId":50056,"journal":{"name":"Journal of Sea Research","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1385110124000455/pdfft?md5=e2bb02811aa80582aa6bc2c6331b1ccd&pid=1-s2.0-S1385110124000455-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Feasibility study for kelp afforestation in the German Bight: Habitat availability and light requirements of Laminaria hyperborea\",\"authors\":\"Florian Stahl , Lea Kappas , Florian Uhl , Natascha Oppelt , Kai Bischof\",\"doi\":\"10.1016/j.seares.2024.102512\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Besides the much-needed reduction of CO<sub>2</sub> emissions, exploring and implementing carbon removal strategies is essential to reduce the impact of man-made climate change effects. The sequestration of CO<sub>2</sub> 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 CO<sub>2</sub> 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 <em>Laminaria hyperborea</em> and the in situ <em>light</em> climate. Our results point to a compensation irradiance of 30 μmol m<sup>−2</sup> s<sup>−1</sup> and a local depth limit of 12.8 m for <em>L. hyperborea</em> under summer conditions. Consequently, we calculated the total area with suitable light conditions for kelp growth around Heligoland to be about 24.1 km<sup>2</sup>. 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. <em>hyperborea</em> and helps to identify suitable afforestation sites within the German Bight.</p></div>\",\"PeriodicalId\":50056,\"journal\":{\"name\":\"Journal of Sea Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-06-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1385110124000455/pdfft?md5=e2bb02811aa80582aa6bc2c6331b1ccd&pid=1-s2.0-S1385110124000455-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sea Research\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1385110124000455\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sea Research","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1385110124000455","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
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.
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.