Predicting Climate Mitigation Through Carbon Burial in Blue Carbon Ecosystems—Challenges and Pitfalls

Global Change Biology, Год журнала: 2025, Номер 31(1)

Опубликована: Янв. 1, 2025

ABSTRACT The concept of “blue carbon” is, in this study, critically evaluated with respect to its definitions, measuring approaches, and time scales. Blue carbon deposited ocean sediments can only counteract anthropogenic greenhouse gas (GHG) emissions if stored on a long‐term basis. focus here is the coastal blue ecosystems (BCEs), mangrove forests, saltmarshes, seagrass meadows due their high primary production large stocks. sequestration BCEs typically estimated using either: 1. sediment inventories combined accretion rates or 2. mass balance between input output from sediment. inventory approach compromised by lack accurate estimates over extended periods. Hence, short‐term sedimentation assays cannot be reliably extrapolated long timescales. use tracers like 210 Pb, other hand, invalid most mobility bioturbation physical disturbances. While provides reasonable (months) estimates, it often fails when longer periods (> 100 years) climatic variations. Furthermore, many published budgets based do not include all relevant sources sinks. Simulations decomposition mangrove, saltmarsh ( Spartina sp.), eelgrass Zostera sp.) litter 3‐G exponential model indicate that current approaches are 3–18 times too high. Most must therefore considered overestimates. climate mitigation potential also challenged excess GHG methane (CH 4 ) nitrous oxide (N 2 O) biogenic structures forests sediments. Thus, cases, into BCE keep pace simultaneous CO equivalents.

Язык: Английский

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From seasonal field study to surrogate modeling: Investigating the biomechanical dynamics of Elymus sp. in salt marshes

Limnology and Oceanography Methods, Год журнала: 2024, Номер 22(6), С. 416 - 436

Опубликована: Апрель 11, 2024

Abstract Salt marshes have been studied in the context of ecosystem services they can provide for coastal protection. In this study, monthly field campaigns focusing on Elymus spp. and its biomechanical properties were conducted from December 2021 to 2022 German Barrier Island Spiekeroog. A total 1390 specimens investigated determine their growth length, out which 418 mechanically with three‐point bending tests properties. To evaluate interaction hydraulic loads vegetation, challenge modeling plant scale is addressed by using resin 3D printing flexible material, while materials mechanical Based data acquired additional literature (adding up 1959 measurements), a cylindrical model an outer diameter (scale 1 : 1) was developed. It manufactured mixing two components varying volume ratios resulting surrogates different flexural stiffnesses. The characterized image analysis behavior when subjected currents between 0.4 1.2 m/s. With average Young's modulus ranging 8.45 1708.42 MPa, angle varies 0° 77.4° displaying influence material stiffness flow velocity. Applying Cauchy scaling law, study shows that be used sp. respect allowing seasonally independent physical laboratory experiments models.

Язык: Английский

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A bibliometric analysis of blue carbon (1993–2023): evolution of research hot topics and trends

Frontiers in Marine Science, Год журнала: 2024, Номер 11

Опубликована: Авг. 30, 2024

Blue carbon refers to the fixed in marine ecosystems such as mangroves, salt marshes, and seagrass beds. Considered a treasure house for capturing storing dioxide, it can alleviate environmental issues linked climate change positively influence environments where people live. Thus, clarify hotspots development trends of blue research, bibliometric analysis incorporating ScientoPy VOSviewer software were used quantitatively analyze 4,604 publications from Web Science Scopus databases between 1993 2023. The results indicate rapidly growing number published studies on carbon, with research being multifaceted gradually becoming an interdisciplinary international topic. This study which is based keyword clustering analysis, comprises three stages. strength cooperative connections scholars various countries who have work carbon. found that cooperation networks developed are strong those developing relatively weak. Quantitative trend reveals focus restoration conservation ecosystems, remote sensing predominant technology field recent years. In increasing sequestration capacity, mitigation, macroalgae remain potential development.

Язык: Английский

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Editorial: Coastal rewilding as a nature-based solution

Frontiers in Marine Science, Год журнала: 2025, Номер 11

Опубликована: Янв. 22, 2025

Язык: Английский

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The potency of salt marshes for enhancing climate change adaptation and mitigation: Case study Kulon Progo, Yogyakarta, Indonesia

IOP Conference Series Earth and Environmental Science, Год журнала: 2025, Номер 1438(1), С. 012053 - 012053

Опубликована: Янв. 1, 2025

Abstract The purpose of this study is to gain an insight into how salt marshes in Kulon Progo, Yogyakarta, Indonesia, contribute mitigation and adaptation changing climates. Severe consequences from climate change are currently being experienced such as bigger floods well problems agriculture. Due their location within land sea, provide essential function minimizing the risk coastal erosion low-lying areas. Additionally, these natural environments very effective at storing carbon dioxide they accumulate sediments which rich organic material. primary objective evaluate Progo’s marshes’ capacity for change. Methodologically, it involves analysis protective carbon-sequestering roles by a review scientific literature along with secondary data local government sources. findings show that Progo greatly reduce flood risks act important sinks, contributing resilience sustainability. discussion focuses on need enhancing marsh protection actions initiatives, emphasizing dual safeguarding towns shoreline lowering atmospheric levels. indicate protecting restoring could be critical component regional plans, providing nature-based solution complex issues due

Язык: Английский

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Seascape connectivity with mangroves positively influences tropical saltmarsh blue carbon stocks

The Science of The Total Environment, Год журнала: 2025, Номер 969, С. 178929 - 178929

Опубликована: Фев. 28, 2025

Despite exponential increase in global blue carbon studies over the last decade, critical knowledge gaps remain regarding role of drivers such as seascape connectivity that mediate storage tropical saltmarsh ecosystems. The present study addresses this gap by investigating how seascape-level drivers, specifically between ecosystems, sediment traits and plant biomass, influence stocks, connected versus individual (Porteresia coarctata Myrostachia wightiana) meadows. This compared meadows (adjacent to mangroves) with across four locations assessed their (C) nitrogen (N) content sediment, various C stocks. Stable isotopes tracers (13C 15N) were used determine contribution from autochthonous allochthonous sources. Connectivity resulted increased shoot density, biomass 1.7-fold 1.5-fold respectively than 2.3-fold higher Corg stocks (sediment + biomass) below -ground pool 2 10 %, whereas combined mangrove leaf was 7.8 26.8 % both species probably depending on litterfall organic matter trapping efficiency these species. underscores positive mangroves enhancing

Язык: Английский

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Spatially explicit modeling of global tidal marsh accumulated carbon storage revealed its heterogeneous evolutionary patterns across world regions during 2001–2020

Journal of Environmental Management, Год журнала: 2025, Номер 387, С. 125630 - 125630

Опубликована: Май 21, 2025

Язык: Английский

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A spatiotemporal framework to assess the bio-geomorphic interplay of saltmarsh vegetation and tidal emergence (Western Scheldt estuary)

International Journal of Applied Earth Observation and Geoinformation, Год журнала: 2024, Номер 136, С. 104337 - 104337

Опубликована: Дек. 22, 2024

Язык: Английский

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Assessing the economic feasibility of voluntary carbon markets in land use management scenarios for Scottish saltmarshes

Ocean & Coastal Management, Год журнала: 2024, Номер 251, С. 107099 - 107099

Опубликована: Март 19, 2024

Saltmarshes have been valued for their multiple ecosystem services, including agriculture, recreation, habitats fish and birds, coastal protection carbon sequestration long-term storage. However, because of the many threats faced, rising sea levels, limited sediment supplies anthropogenic impacts, saltmarshes require careful restoration management to continue providing these benefits. In this study, we examined feasibility land abandonment caused by reinstated tidal flow in Scottish saltmarshes, based on differential gains soil stock between natural those manged agricultural uses, suggested considerations a voluntary market plan. The study's results showed that proportion used activities was not very large (2.56 %, equivalent 179.73 ha). average net benefit (i.e., after removing opportunity cost land) new use is GBP £ 5368.71/ha 67-year post-abandonment program, showing model economically viable implement mechanism. A scheme may be easier than compliance scheme, although price credits under high fully compensate costs all regions. effect, at break-even point (e.g., balances regions varied widely (range 1.06–59.83/tC), which means with higher there need consider compensating farmers through blended private-public Despite difficulties, implementing models initiatives can society broader sense, just mitigate climate change.

Язык: Английский

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Large grazers suppress a foundational plant and reduce soil carbon concentration in eastern US saltmarshes

Journal of Ecology, Год журнала: 2024, Номер unknown

Опубликована: Сен. 2, 2024

Abstract Large grazers modify vegetated ecosystems and are increasingly viewed as keystone species in trophic rewilding schemes. Yet, their ecosystem influences context‐dependent, a crucial challenge is identifying where sustain, versus undermine, important properties resilience. Previous work diverse European saltmarshes found that, despite changing plant invertebrate community structure, do not suppress below‐ground properties, including soil organic carbon (SOC). We hypothesised contrast, eastern US would be sensitive to large extensive areas dominated by single grass, Spartina alterniflora . predicted that reduce above‐ biomass, densities, shift texture ultimately SOC concentration. tested our hypotheses using replicated 51‐month grazer (horse) exclusion experiment Georgia, coupled with observations of 14 long‐term grazed sites, spanning ~1000 km the coast. Grazer quickly led increased height, cover flowering, snail density. Changes vegetation structure were reflected modified (reduced sand, clay) elevated root yet we no response SOC. also reduced drought‐associated die‐off. observed shifts sites along seaboard grazing has occurred for hundreds years. Unlike experiment, was associated A structural equation model implicated revealing stem height key driver carbon. Synthesis : These results illustrate context dependency impacts on coastal wetlands. In contrast well‐studied marshes, marshes structured foundational grass resulting being more grazing. Coastal systems characterised foundation might inherently vulnerable lack resilience face other disturbances, underlining frameworks explain predict must account geographic variation structure.

Язык: Английский

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