伊比利亚半岛西北部Ría de Ferrol地区Zostera marina草甸蓝碳储量

IF 2 Q3 SOIL SCIENCE Spanish Journal of Soil Science Pub Date : 2023-05-10 DOI:10.3389/sjss.2023.11352
María del Carmen de la Cerda-Marín, G. DÍAZ-AGRAS, Ramiro Rodríguez Tato, María Candás Romero, Marcos Pérez Señarís, Andrés de Solaun Eimil, X. Otero
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引用次数: 0

摘要

自工业革命以来,温室气体(GHG)的增加一直在持续。因此,不同的国际组织对陆地土壤和生态系统等温室气体汇给予了特别关注。然而,最初估计的平衡不包括与海水、沿海土壤和沉积物相关的碳储量,即所谓的蓝碳。目前,由于可获得的信息有限,特别是在伊比利亚半岛的大西洋沿岸,蓝色碳汇是许多研究的主题。我们研究了Ría de Ferrol (O Baño和Castelo de San Felipe)两个主要草甸的土壤和Zostera marina生物量中存在的有机碳储量。与生物量相关的碳储量为0.37 Mg C ha−1,其中0.18 Mg C ha−1对应于上表层,0.19 Mg C ha−1对应于下表层。土壤碳储量在5 cm深度为4.11 Mg C ha - 1,在1 m深度为82.14 Mg C ha - 1。加上生物量中的碳值,整个Ría de Ferrol的储量为82.5 Mg C ha - 1。Z. marina在Ría de Ferrol中占总C的8.25%。这些数值高于其他地区。同位素(δ13C、δ15N)和C/N比值表明,O Baño土壤中有机碳储量可能有陆源的重要有机质输入,而圣费利贝则可能有海相的有机质输入。
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Blue Carbon Stock in Zostera marina Meadows in the Ría de Ferrol (NW Iberian Peninsula)
The increase in greenhouse gases (GHG) has been constant since the Industrial Revolution. For this reason, different international organizations have devoted special attention to GHG sinks such as terrestrial soils and ecosystems. However, the initially estimated balances did not include the carbon stock associated with ocean waters, coastal soils and sediments, known as blue carbon. Currently, blue carbon sinks are the subject of numerous studies due to the limited information available, especially on the Atlantic coast of the Iberian Peninsula. We studied the organic C stock present in soils and in Zostera marina biomass in the two main meadows in the Ría de Ferrol (O Baño and Castelo de San Felipe). The carbon stock associated with biomass was 0.37 Mg C ha−1, with 0.18 Mg C ha−1 corresponding to the epigeal portion and 0.19 Mg C ha−1 to the hypogeal portion. Soil carbon stock was much higher: 4.11 Mg C ha−1 at a depth of 5 cm and 82.14 Mg C ha−1 at a depth of 1 m. Together with carbon values in biomass, a stock of 82.5 Mg C ha−1 was obtained for the whole Ría de Ferrol. Z. marina accounted for 8.25% of total C in the Ría de Ferrol. These values were higher than those found in other regions. Isotope ratios (δ13C, δ15N) and C/N ratios indicated that the organic C stock in the O Baño soil may receive important organic matter inputs of terrestrial origin, while in San Felipe, it seems to have a marine origin.
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来源期刊
CiteScore
2.20
自引率
0.00%
发文量
13
期刊介绍: The Spanish Journal of Soil Science (SJSS) is a peer-reviewed journal with open access for the publication of Soil Science research, which is published every four months. This publication welcomes works from all parts of the world and different geographic areas. It aims to publish original, innovative, and high-quality scientific papers related to field and laboratory research on all basic and applied aspects of Soil Science. The journal is also interested in interdisciplinary studies linked to soil research, short communications presenting new findings and applications, and invited state of art reviews. The journal focuses on all the different areas of Soil Science represented by the Spanish Society of Soil Science: soil genesis, morphology and micromorphology, physics, chemistry, biology, mineralogy, biochemistry and its functions, classification, survey, and soil information systems; soil fertility and plant nutrition, hydrology and geomorphology; soil evaluation and land use planning; soil protection and conservation; soil degradation and remediation; soil quality; soil-plant relationships; soils and land use change; sustainability of ecosystems; soils and environmental quality; methods of soil analysis; pedometrics; new techniques and soil education. Other fields with growing interest include: digital soil mapping, soil nanotechnology, the modelling of biological and biochemical processes, mechanisms and processes responsible for the mobilization and immobilization of nutrients, organic matter stabilization, biogeochemical nutrient cycles, the influence of climatic change on soil processes and soil-plant relationships, carbon sequestration, and the role of soils in climatic change and ecological and environmental processes.
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