Carbon Stock in Coastal Ecosystems of Tombolos of the White and Baltic Seas
Author:
Bagdasarov Ilya1, Tseits Michail1, Kryukova Iuliia1, Taskina Kseniya2, Bobrik Anna1, Ilichev Igor1, Cheng Junxiang3, Xu Ligang3ORCID, Krasilnikov Pavel1ORCID
Affiliation:
1. Faculty of Soil Science, Moscow State University, 119991 Moscow, Russia 2. Institute of Biology, Karelian Research Center, Russian Academy of Sciences, 185910 Petrozavodsk, Russia 3. Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
Abstract
“Blue carbon”, apart from marine humus, includes the carbon (C) stock of coastal ecosystems such as mangroves, saltmarshes, and seagrass meadows, which have been overlooked until recently. Information about the role of coastal wetlands in C sequestration and providing other ecosystem services is still insufficient. In the present study, we assessed the C reserves of soils and vegetation biomass in two complex coastal landscapes (tombolos) located on the coasts of the White and Baltic seas. The soil and plant C stocks were slightly higher at the plot on the Baltic Sea (93.4 ± 46.7 Mg C·ha−1 and 5.22 ± 2.51 Mg C·ha−1, respectively) than at the plot on the White Sea (71.4 ± 38.2 Mg C·ha−1 and 3.95 ± 2.42 Mg C·ha−1, respectively). We attributed the higher values of the C reserved to a warmer climate and less saline water at the plot on the Baltic Sea. Both soil and plant C showed high heterogeneity due to geomorphological complexity and differences in vegetative communities. The Phragmites australis community showed the highest plant biomass and, in some places, high soil C reserves. Allochthonous C contributed to the soil C stock at the site on the White Sea. Though P. australis sequestered more C than other communities, its effect on ecosystem services was mostly negative because the invasion of reeds reduced the biological diversity of the marshes.
Funder
Russian Science Foundation
Subject
Nature and Landscape Conservation,Ecology,Global and Planetary Change
Reference46 articles.
1. IPCC (2007). Climate Change 2007. Synthesis Report. Contribution of Working Groups I, II & III to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, IPCC. 2. A blueprint for blue carbon: Toward an improved understanding of the role of vegetated coastal habitats in sequestering CO2;Mcleod;Front. Ecol. Environ.,2011 3. Variable impacts of climate change on blue carbon;Lovelock;One Earth,2020 4. Nellemann, C., Corcoran, E., Duarte, C.M., Valdés, L., De Young, C., Fonseca, L., and Grimsditch, G. (2009). Blue Carbon. A Rapid Response Assessment, Birkeland Trykkeri AS. United Nations Environment Programme. 5. Carbon accumulation rates in salt marsh sediments suggest high carbon storage capacity;Ouyang;Biogeosci. Discuss.,2013
|
|