1
|
Pacheco CFO, Queiroz HM, Mazzuco ACA, Nóbrega GN, Ferreira TO, Bernardino AF. Soil greenhouse gas emissions from dead and natural mangrove forests in Southeastern Brazil. MARINE POLLUTION BULLETIN 2024; 203:116487. [PMID: 38744046 DOI: 10.1016/j.marpolbul.2024.116487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
Mangroves forests may be important sinks of carbon in coastal areas but upon their death, these forests may become net sources of carbon dioxide (CO2) and methane (CH4) to the atmosphere. Here we assessed the spatial and temporal variability in soil CO2 and CH4 fluxes from dead mangrove forests and paired intact sites in SE-Brazil. Our findings demonstrated that during warmer and drier conditions, CO2 soil flux was 183 % higher in live mangrove forests when compared to the dead mangrove forests. Soil CH4 emissions in live forests were > 1.4-fold higher than the global mangrove average. During the wet season, soil GHG emissions dropped significantly at all sites. During warmer conditions, mangroves were net sources of GHG, with a potential warming effect (GWP100) of 32.9 ± 10.2 (±SE) Mg CO2e ha-1 y-1. Overall, we found that dead mangroves did not release great amounts of GHG after three years of forest loss.
Collapse
Affiliation(s)
- Carla F O Pacheco
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil
| | - Hermano M Queiroz
- Departamento de Geografia, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Ana Carolina A Mazzuco
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil; Intergovernmental Oceanographic Commission of UNESCO, Project Office for IODE, Oostende, Flanders, Belgium
| | - Gabriel N Nóbrega
- Departamento de Ciências do Solo, Centro de Ciências Agrárias, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Tiago O Ferreira
- Departamento de Ciências do Solo, ESALQ, Universidade de Sao Paulo, Piracicaba, SP, Brazil
| | - Angelo F Bernardino
- Departamento de Oceanografia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brazil.
| |
Collapse
|
2
|
da Silva Pontes AL, Monteiro Leal C, Pereira Lucas M, Caamaño Muiño da Silva G, Braga Alves Peixoto JV, Barbosa Succar J, Ribeiro Flores V, Neves Direito IC, Ribeiro da Silva AJ, de Oliveira Chaves F, Eccard Fingolo C. Dereplication Tools for Rhizophora mangle Extracts from Different Mangrove Areas and their Potential Against Staphylococcus aureus. Chem Biodivers 2024:e202400687. [PMID: 38702295 DOI: 10.1002/cbdv.202400687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/27/2024] [Accepted: 05/03/2024] [Indexed: 05/06/2024]
Abstract
Rhizophora extracts have several potential biological activities, and their metabolites can be used in the pharmaceutical industry. Extracts of Rhizophora species obtained from mangroves have shown prospective activity against Staphylococcus aureus. This study aimed to investigate the chemical profile of Rhizophora mangle leaves from fringe, basin, and transition mangrove zones and their bactericidal/bacteriostatic potential against S. aureus. R. mangle leaves were collected monthly in 2018 from litterfall in three different zones of the mangrove of Guaratiba State Reserve: fringe, basin, and transition. Extracts were prepared from the material collected in October and December for LC-HRMS/MS analysis, and dereplication was performed using a molecular library search and the classical molecular networking GNPS platform. The minimum inhibitory concentrations (MICs) of the aqueous extract of R. mangle against S. aureus were determined. No S. aureus growth was observed compared to the control for extracts collected from September to December. Different compounds were annotated in each region, yet a marked presence of phenolic compounds was noted, among them glycosylated flavonoid derivatives of quercetin and kaempferol. The results suggest bactericidal/bacteriostatic activity for extracts of R. mangle leaves collected in 2018 from three mangrove forest zones.
Collapse
Grants
- E-26/211.995/2021 Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ, RJ, Brazil)
- E-26/200.020/2019 Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ, RJ, Brazil)
- E-26/010.002404/2019 Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ, RJ, Brazil)
- E-26/010.002381/2019 Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ, RJ, Brazil)
- E-26/200.006/2019 Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ, RJ, Brazil)
- 141535/2019-9 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Collapse
Affiliation(s)
- Amanda Letícia da Silva Pontes
- Laboratório de Tecnologia em Produtos Naturais, Departamento de Farmácia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, s/n, CCS, Bloco H, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
| | - Carla Monteiro Leal
- Laboratório de Produtos Naturais e Ensaios Biológicos, Departamento de Produtos Naturais e Alimentos, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, 21941-902, Brazil
| | - Manuela Pereira Lucas
- Laboratório de Tecnologia em Produtos Naturais, Departamento de Farmácia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| | - Gabriela Caamaño Muiño da Silva
- Laboratório de Tecnologia em Produtos Naturais, Departamento de Farmácia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| | - João Vitor Braga Alves Peixoto
- Laboratório de Tecnologia em Produtos Naturais, Departamento de Farmácia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| | - Juliana Barbosa Succar
- Laboratório de Pesquisa em Biotecnologia Ambiental, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| | - Vinicius Ribeiro Flores
- Laboratório de Pesquisa em Biotecnologia Ambiental, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| | - Ida Carolina Neves Direito
- Laboratório de Pesquisa em Biotecnologia Ambiental, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| | - Antonio Jorge Ribeiro da Silva
- Instituto de Pesquisas de Produtos Naturais Walter Mors, Universidade Federal do Rio de Janeiro (UFRJ), Av. Carlos Chagas Filho, s/n, CCS, Bloco H, Cidade Universitária, Rio de Janeiro, RJ, 21941-590, Brazil
| | - Filipe de Oliveira Chaves
- Núcleo de Estudos em Manguezais, Universidade do Estado do Rio de Janeiro (UERJ), Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, RJ, 20550-900, Brazil
| | - Catharina Eccard Fingolo
- Laboratório de Tecnologia em Produtos Naturais, Departamento de Farmácia, Faculdade de Ciências Biológicas e Saúde, Universidade do Estado do Rio de Janeiro (UERJ), Campus Zona Oeste, Campo Grande, Av. Manuel Caldeira de Alvarenga 1.203, Rio de Janeiro, RJ, 23070-200, Brazil
| |
Collapse
|
3
|
Sun Z, An Y, Kong J, Zhao J, Cui W, Nie T, Zhang T, Liu W, Wu L. Exploring the spatio-temporal patterns of global mangrove gross primary production and quantifying the factors affecting its estimation, 1996-2020. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 908:168262. [PMID: 37918724 DOI: 10.1016/j.scitotenv.2023.168262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/17/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
Mangrove ecosystems, as an important component of "Blue Carbon", play a curial role on global carbon cycling; however, the lack of the global estimates of mangrove ecosystem gross primary production (GPP) and the underlying environmental controls on its estimation remain a gap in knowledge. In this study, we utilized global mangrove eddy covariance data and applied Gaussian Process Regression (GPR) to estimate GPP for global mangrove ecosystems, aiming to elucidate the factors influencing these estimates. The optimal GPR achieved favorable estimation performance through cross-validation (R2 = 0.90, RMSE = 0.92 gC/m2/day, WI = 0.86). Over the study period, the globally annual averaged GPP was 2054.53 ± 38.51 gC/m2/yr (comparable to that of evergreen broadleaf forests and exceeds the GPP of most other plant function types), amounting to a total of 304.82 ± 7.71TgC/yr, hotspots exceeding 3000 gC/m2/yr observed near the equator. The analysis revealed a decline in global mangrove GPP during 1996-2020 of -0.89 TgC/yr. Human activities (changes in mangrove cover area) played a relatively consistent role in contributing to this decrease. Conversely, variations in external environmental conditions showed distinct inter-annual differences in their impact. The spatio-temporal distribution patterns of mangrove ecosystems GPP (e.g., the bimodal annual pattern, latitudinal gradients, etc.) demonstrated the regulatory influence of external environmental conditions on GPP estimates. The model ensemble attribution analysis indicated that the fraction of absorbed photosynthetically active radiation exerted the dominant control on GPP estimations, while temperature, salinity, and humidity acted as secondary constraints. The findings of this study provide valuable insights for monitoring, modeling, and managing mangrove ecosystems GPP; and underscore the critical role of mangroves in global carbon sequestration. By quantifying the influences of environmental factors, we enhance our understanding of mangrove carbon cycling estimates, thereby helping sustain of these disproportionately productive ecosystems.
Collapse
Affiliation(s)
- Zhongyi Sun
- School of Ecology and Environment, Hainan University, Haikou 570208, China; Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation, Hainan University, Haikou 570228, China
| | - Yinghe An
- School of Ecology and Environment, Hainan University, Haikou 570208, China
| | - Jiayan Kong
- School of Ecology and Environment, Hainan University, Haikou 570208, China
| | - Junfu Zhao
- Hainan Provincial Ecological and Environmental Monitoring Centre, Haikou 571126, China
| | - Wei Cui
- Development Research Center, National Forestry and Grassland Administration, Beijing 100714, China
| | - Tangzhe Nie
- School of Water Conservancy and Electric Power, Heilongjiang University, Harbin 150080, China
| | - Tianyou Zhang
- College of Grassland Agriculture, Northwest A&F University, Xianyang 712100, China
| | - Wenjie Liu
- School of Ecology and Environment, Hainan University, Haikou 570208, China; Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation, Hainan University, Haikou 570228, China
| | - Lan Wu
- School of Ecology and Environment, Hainan University, Haikou 570208, China.
| |
Collapse
|
4
|
Li X, Cheng X, Cheng K, Cai Z, Feng S, Zhou J. The influence of tide-brought nutrients on microbial carbon metabolic profiles of mangrove sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167732. [PMID: 37827311 DOI: 10.1016/j.scitotenv.2023.167732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 10/06/2023] [Accepted: 10/08/2023] [Indexed: 10/14/2023]
Abstract
Mangrove ecosystems in the intertidal zone are continually affected by tidal inundation, but the impact of tidal-driven nutrient inputs upon bacterial communities and carbon metabolic features in mangrove surface sediments remains underexplored, and the differences in such impacts across backgrounds are not known. Here, two mangrove habitats with contrasting nutrient backgrounds in Shenzhen Bay and Daya Bay in Shenzhen City, China, respectively, were studied to investigate the effects of varying tidal nutrient inputs (especially dissolved inorganic nitrogen and PO43--P) on bacterial community composition and functioning in sediment via field sampling, 16S rDNA amplicon sequencing, and the quantitative potential of microbial element cycling. Results showed that tidal input increased Shenzhen Bay mangrove's eutrophication level whereas it maintained the Daya Bay mangrove's relatively oligotrophic status. Dissolved inorganic nitrogen and PO43--P levels in Shenzhen Bay were respectively 12.6-39.6 and 7.3-29.1 times higher than those in Daya Bay (p < 0.05). In terms of microbial features, Desulfobacteraceae was the dominant family in Shenzhen Bay, while the Anaerolineaceae family dominated in Daya Bay. Co-occurrence network analysis revealed more interconnected and complex microbial networks in Shenzhen Bay. The quantitative gene-chip analysis uncovered more carbon-related functional genes (including carbon degradation and fixation) enriched in Shenzhen Bay's sediment microbial communities than Daya Bay's. Partial least squares path modeling indicated that tidal behavior directly affected mangrove sediments' physicochemical characteristics, with cascading effects shaping microbial diversity and C-cycling function. Altogether, these findings demonstrate that how tides influence the microbial carbon cycle in mangrove sediments is co-correlated with the concentration of nutrient inputs and background status of sediment. This work offers an insightful lens for better understanding bacterial community structure and carbon metabolic features in mangrove sediments under their tidal influences. It provides a theoretical basis to better evaluate and protect mangroves in the context of global change.
Collapse
Affiliation(s)
- Xinyang Li
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China
| | - Xueyu Cheng
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China
| | - Keke Cheng
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China
| | - Zhonghua Cai
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China
| | - Shuying Feng
- Medical College, Henan University of Chinese Medicine, Zhengzhou, Henan 450056, PR China.
| | - Jin Zhou
- Shenzhen Public Platform for Screening and Application of Marine Microbial Resources, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, PR China.
| |
Collapse
|
5
|
Soeprobowati TR, Sularto RB, Hadiyanto H, Puryono S, Rahim A, Jumari J, Gell P. The carbon stock potential of the restored mangrove ecosystem of Pasarbanggi, Rembang, Central Java. MARINE ENVIRONMENTAL RESEARCH 2024; 193:106257. [PMID: 38086137 DOI: 10.1016/j.marenvres.2023.106257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/16/2023] [Accepted: 11/05/2023] [Indexed: 01/02/2024]
Abstract
Mangrove ecosystems can absorb significant amounts of carbon and help mitigate climate change. However, their existence continues to be endangered by natural and human forces. Therefore, mangrove restoration is regarded as a crucial component of the global climate change agenda. This study aims to estimate the potential total carbon stock of restored mangrove ecosystems in Pasarbanggi, Rembang, Central Java. The above-below-ground (root) carbon stock was calculated using several published allometric equations. The loss-on-ignition method analyzed leaf litter and sediment carbon stocks. This study estimates the Pasarbanggi mangrove ecosystem's total carbon stock potential at 0.02 × 106 MgC, which is equivalent to the potential CO2 emission of 0.08 × 106 MgCO2e, with up to 65% stored in sediments. This study highlights the critical role of restored mangrove ecosystems on the climate change mitigation agenda by reducing the concentration of atmospheric CO2.
Collapse
Affiliation(s)
- Tri Retnaningsih Soeprobowati
- Doctoral Program of Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Cluster for Paleolimnology (CPalim), School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Department Biology, Faculty Science and Mathematics, Diponegoro University, Semarang, Indonesia.
| | - R B Sularto
- Doctoral Program of Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Department Criminal Law, Faculty of Law, Diponegoro University, Semarang, Indonesia
| | - Hadiyanto Hadiyanto
- Doctoral Program of Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Department Chemical Engineering, Faculty of Engineering, Diponegoro University, Semarang, Indonesia
| | - Sri Puryono
- Doctoral Program of Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia
| | - Aulia Rahim
- Doctoral Program of Environmental Science, School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Cluster for Paleolimnology (CPalim), School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia
| | - Jumari Jumari
- Cluster for Paleolimnology (CPalim), School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Department Biology, Faculty Science and Mathematics, Diponegoro University, Semarang, Indonesia
| | - Peter Gell
- Cluster for Paleolimnology (CPalim), School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia; Future Regions Research Centre, Federation University, Ballarat, Australia; Adjunct Professor at School of Postgraduate Studies, Diponegoro University, Semarang, Indonesia
| |
Collapse
|
6
|
Mendes DS, Beasley CR, Silva DNN, Fernandes MEB. Microplastic in mangroves: A worldwide review of contamination in biotic and abiotic matrices. MARINE POLLUTION BULLETIN 2023; 195:115552. [PMID: 37738877 DOI: 10.1016/j.marpolbul.2023.115552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 08/29/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
This review presents the spatial distribution (where) and the methods applied (how) in assessing Microplastics (MPs) contamination in sediments, water, and organisms in mangrove areas. We analyzed 53 articles on MPs in Asia, America, and Africa and produced by 359 authors, although very localized, lacking wide-scale coverage of mangrove coasts around the world. The results showed that most of studies provided MP's bulk characteristics (type, size, color, form), along with global gross reserves of MPs in the mangrove compartments. Investigations in mangrove areas are still relatively limited. Therefore, for future research, it is relevant to enhance spatial and temporal sampling of MP contamination and to establish standardized protocols to enable effective comparisons between mangrove areas, rivers, beaches, and coastal seas. In addition, it is crucial to investigate the role of MPs as carriers or vectors of other pollutants.
Collapse
Affiliation(s)
- Dayene Santiago Mendes
- Programa de Pós-Graduação em Biologia Ambiental, Instituto de Estudos Costeiros (IECOS) Universidade Federal do Pará (UFPA), Bragança, PA, Brazil; Laboratório de Ecologia de Manguezal (LAMA), Universidade Federal do Pará (UFPA), Bragança, PA, Brazil.
| | - Colin Robert Beasley
- Programa de Pós-Graduação em Biologia Ambiental, Instituto de Estudos Costeiros (IECOS) Universidade Federal do Pará (UFPA), Bragança, PA, Brazil; Laboratório de Conservação da Biodiversidade e das Águas, Campus Bragança, Universidade Federal do Pará (UFPA), Bragança, PA, Brazil.
| | - Daniel Nobre Nunes Silva
- Laboratório de Ciência e Engenharia de Petróleo (LCPetro), Campus Salinópolis, Universidade Federal do Pará (UFPA), Salinópolis, PA, Brazil.
| | - Marcus Emanuel Barroncas Fernandes
- Programa de Pós-Graduação em Biologia Ambiental, Instituto de Estudos Costeiros (IECOS) Universidade Federal do Pará (UFPA), Bragança, PA, Brazil; Laboratório de Ecologia de Manguezal (LAMA), Universidade Federal do Pará (UFPA), Bragança, PA, Brazil.
| |
Collapse
|
7
|
Yin S, Wang J, Zeng H. A bibliometric study on carbon cycling in vegetated blue carbon ecosystems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27816-2. [PMID: 37243764 DOI: 10.1007/s11356-023-27816-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 05/17/2023] [Indexed: 05/29/2023]
Abstract
Understanding carbon cycling in blue carbon ecosystems is key to sequestrating more carbon in these ecosystems to mitigate climate change. However, limited information is available on the basic characteristics of publications, research hotspots, research frontiers, and the evolution of topics related to carbon cycling in different blue carbon ecosystems. Here, we conducted bibliometric analysis on carbon cycling in salt marsh, mangrove, and seagrass ecosystems. The results showed that interest in this field has dramatically increased with time, particularly for mangroves. The USA has substantially contributed to the research on all ecosystems. Research hotspots for salt marshes were sedimentation process, carbon sequestration, carbon emissions, lateral carbon exchange, litter decomposition, plant carbon fixation, and carbon sources. In addition, biomass estimation by allometric equations was a hotspot for mangroves, and carbonate cycling and ocean acidification were hotspots for seagrasses. Topics involving energy flow, such as productivity, food webs, and decomposition, were the predominant areas a decade ago. Current research frontiers mainly concentrated on climate change and carbon sequestration for all ecosystems, while methane emission was a common frontier for mangroves and salt marshes. Ecosystem-specific research frontiers included mangrove encroachment for salt marshes, ocean acidification for seagrasses, and aboveground biomass estimation and restoration for mangroves. Future research should expand estimates of lateral carbon exchange and carbonate burial and strengthen the exploration of the impacts of climate change and restoration on blue carbon. Overall, this study provides the research status of carbon cycling in vegetated blue carbon ecosystems, which favors knowledge exchanges for future research.
Collapse
Affiliation(s)
- Shuo Yin
- School of Urban Planning and Design, Peking University Shenzhen Graduate School, Peking University, Shenzhen, 518055, Guangdong, China
- College of Urban and Environment Sciences, Peking University, Beijing, 100871, China
| | - Junjian Wang
- Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- State Environmental Protection Key Laboratory of Integrated Surface Water-Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Hui Zeng
- School of Urban Planning and Design, Peking University Shenzhen Graduate School, Peking University, Shenzhen, 518055, Guangdong, China.
- College of Urban and Environment Sciences, Peking University, Beijing, 100871, China.
| |
Collapse
|
8
|
Neely SH, Raymond A. The influence of the taphonomically active zone on peat formation: Establishing modern peat analogs to decipher mangrove sub-habitats from historical peats. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.981537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
Mangroves create unique and highly productive wetland communities in intertidal zones of tropical and subtropical coastlines. Despite their many ecosystem services, such as carbon sequestration, mangroves remain threatened by climate change, sea-level rise, and human development. The inclusion of conservation paleobiology and long-term perspectives on how these ecosystems have responded to past environmental change can inform current policy and lead to more effective conservation and restoration management strategies for modern mangrove communities. In South Florida, humified plant debris, or peat, in mangroves provides this historical record. Our research takes a novel paleobiological approach by using plant organ- and taxon-based measures to describe the influence of the taphonomically active zone (TAZ: the zone near the surface of the substrate where taphonomic processes actively formation and degrade accumulated detritus) on the decomposition of mangrove peat with depth. This allows us to understand the taphonomic biases imposed on mangrove peat as it is sequestered into the sedimentological record and provides us with the paleoecological context to better interpret preserved peats and reconstruct past mangrove sub-habitats from peat cores. Accordingly, we collected modern surficial peat cores from two contrasting mangrove sub-habitats in Barnes Sound, FL. These surficial cores were characterized and compared to historical, deep cores from other South Florida mangrove peat deposits. By comparing the proportional abundance of mangrove peat constituents in these samples, we established modern analogs needed to interpret changes in the depositional environment of historical mangrove peats found in sediment cores, which is critical for understanding shoreline responses of mangroves to sea-level rise and anthropogenic change. We demonstrate that (1) leaf mat thickness may be a relative indicator of surficial peat decomposition rates because it correlates with the degree of tidal activity and detritivore access to the leaf litter layer; (2) root percentages are valid tools to differentiate between peats at depth, and can be used as relative indicators for the distance of in situ peat from shorelines; and (3) organismal signals, such as foraminifera and insect parts, provide a means for deciphering precursor mangrove sub-habitats from sequestered peats.
Collapse
|
9
|
Ahmed S, Sarker SK, Friess DA, Kamruzzaman M, Jacobs M, Islam MA, Alam MA, Suvo MJ, Sani MNH, Dey T, Naabeh CSS, Pretzsch H. Salinity reduces site quality and mangrove forest functions. From monitoring to understanding. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 853:158662. [PMID: 36089020 DOI: 10.1016/j.scitotenv.2022.158662] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 06/15/2023]
Abstract
Mangroves continue to be threatened across their range by a mix of anthropogenic and climate change-related stress. Climate change-induced salinity is likely to alter the structure and functions of highly productive mangrove systems. However, we still lack a comprehensive understanding of how rising salinity affects forest structure and functions because of the limited availability of mangrove field data. Therefore, based on extensive spatiotemporal mangrove data covering a large-scale salinity gradient, collected from the world's largest single tract mangrove ecosystem - the Bangladesh Sundarbans, we, aimed to examine (QI) how rising salinity influences forest structure (e.g., stand density, diversity, leaf area index (LAI), etc.), functions (e.g., carbon stocks, forest growth), nutrients availability, and functional traits (e.g., specific leaf area, wood density). We also wanted to know (QII) how forest functions interact (direct vs. indirect) with biotic (i.e., stand structure, species richness, etc.) and abiotic factors (salinity, nutrients, light availability, etc.). We also asked (QIII) whether the functional variable decreases disproportionately with salinity and applied the power-law (i.e., Y = a Xb) to the salinity and functional variable relationships. In this study, we found that rises in salinity significantly impede forest growth and produce less productive ecosystems dominated by dwarf species while reducing stand structural properties (i.e., tree height, basal area, dominant tree height, LAI), soil carbon (organic and root carbon), and macronutrient availability in the soil (e.g., NH4+, P, and K). Besides, species-specific leaf area (related to resource acquisition) also decreased with salinity, whereas wood density (related to resource conservation) increased. We observed a declining abundance of the salt-intolerant climax species (Heritiera fomes) and dominance of the salt-tolerant species (Excoecaria agallocha, Ceriops decandra) in the high saline areas. In the case of biotic and abiotic factors, salinity and salinity-driven gap fraction (high transmission of light) had a strong negative impact on functional variables, while nutrients and LAI had a positive impact. In addition, the power-law explained the consistent decline of functional variables with salinity. Our study disentangles the negative effects of salinity on site quality in the Sundarbans mangrove ecosystem, and we recognize that nutrient availability and LAI are likely to buffer the less salt-tolerant species to maintain the ability to sequester carbon with sea-level rise. These novel findings advance our understanding of how a single stressor-salinity-can shape mangrove structure, functions, and productivity and offer decision makers a much-needed scientific basis for developing pragmatic ecosystem management and conservation plans in highly stressed coastal ecosystems across the globe.
Collapse
Affiliation(s)
- Shamim Ahmed
- Chair of Forest Growth and Yield Science, Department of Life Science Systems, School of Life Sciences, Technical University of Munich, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany; Forestry and Wood Technology Discipline, Khulna University, Khulna 9208, Bangladesh.
| | - Swapan Kumar Sarker
- Department of Forestry and Environmental Science, Shahjalal University of Science and Technology, Sylhet, Bangladesh
| | - Daniel A Friess
- Department of Geography, 1 Arts Link, National University of Singapore, 117570, Singapore
| | - Md Kamruzzaman
- Forestry and Wood Technology Discipline, Khulna University, Khulna 9208, Bangladesh
| | - Martin Jacobs
- Chair of Forest Growth and Yield Science, Department of Life Science Systems, School of Life Sciences, Technical University of Munich, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
| | - Md Akramul Islam
- Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, Bangladesh
| | - Md Azharul Alam
- Department of Pest Management and Conservation, Lincoln University, Lincoln 7647, New Zealand
| | - Mohammad Jamil Suvo
- Faculty of Agricultural Sciences, Nutritional Science and Environmental Management, Justus Liebig University, Bismarckstraße 24, 35390 Giessen, Germany
| | | | - Tanmoy Dey
- Bangladesh Forest Research Institute, Ministry of Environment, Forest and Climate Change, Bangladesh
| | - Clement Sullibie Saagulo Naabeh
- Institute of Environment and Sanitation Studies, University of Ghana, International Programmes Office, MR39+C4X, Annie Jiagge Rd, Accra, Ghana
| | - Hans Pretzsch
- Chair of Forest Growth and Yield Science, Department of Life Science Systems, School of Life Sciences, Technical University of Munich, Hans-Carl-von-Carlowitz-Platz 2, 85354 Freising, Germany
| |
Collapse
|
10
|
Prakash AJ, Behera M, Ghosh S, Das A, Mishra D. A new synergistic approach for Sentinel-1 and PALSAR-2 in a machine learning framework to predict aboveground biomass of a dense mangrove forest. ECOL INFORM 2022. [DOI: 10.1016/j.ecoinf.2022.101900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
11
|
Queiroz HM, Bragantini IOBF, Fandiño VA, Bernardino AF, Barcellos D, Ferreira AD, de Oliveira Gomes LE, Ferreira TO. Degraded mangroves as sources of trace elements to aquatic environments. MARINE POLLUTION BULLETIN 2022; 181:113834. [PMID: 35709679 DOI: 10.1016/j.marpolbul.2022.113834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/06/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
Mangrove forests have been reported as sinks for metals because of the immobilization of these elements in their soils. However, climate change may alter the functioning of these ecosystems. We aimed to assess the geochemical dynamics of Mn, Cu, and Zn in the soils of a mangrove forest dead by an extreme weather event in southeastern Brazil. Soil samples were collected from dead and live mangroves adjacent to each other. The physicochemical parameters (total organic carbon, redox potential, and pH), total metal content, particle size, and metal partitioning were determined. Distinct changes in the soil geochemical environment (establishment of suboxic conditions) and a considerable loss of fine particles was caused by the death of the mangroves. Our results also showed a loss of up to 93 % of metals from soil. This study highlights the paradoxical role of mangroves as potential metal sources in the face of climate change.
Collapse
Affiliation(s)
- Hermano Melo Queiroz
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, CEP 13418-900 Piracicaba, São Paulo, Brazil
| | | | - Verónica Asensio Fandiño
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, CEP 13418-900 Piracicaba, São Paulo, Brazil; Edafotec SL, Rúa Colón 26, 4° Of. 2, 36201 Vigo, Spain
| | - Angelo Fraga Bernardino
- Department of Oceanography, Universidade Federal do Espírito Santo, Vitória, Espírito Santo 29075-910, Brazil
| | - Diego Barcellos
- Department of Environmental Sciences, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, Diadema, SP 09913-030, Brazil
| | - Amanda Duim Ferreira
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, CEP 13418-900 Piracicaba, São Paulo, Brazil
| | | | - Tiago Osório Ferreira
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, CEP 13418-900 Piracicaba, São Paulo, Brazil.
| |
Collapse
|