A comparison of global mangrove maps: Assessing spatial and bioclimatic discrepancies at poleward range limits DOI Creative Commons
Arimatéa C. Ximenes, Kyle C. Cavanaugh, Damien Arvor

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 860, P. 160380 - 160380

Published: Nov. 24, 2022

Mangrove distribution maps are used for a variety of applications, ranging from estimates mangrove extent, deforestation rates, quantify carbon stocks, to modelling response climate change. There multiple datasets, which were derived different remote sensing data and classification methods, so there some discrepancies among these especially with respect the locations their range limits. We investigate latitudinal in poleward limits represented by datasets how differences translate climatologically considering factors known control distributions. compare four widely global - World Atlas Mangroves, Mangroves 2, Global Distribution Watch. examine 21 limit positions analysing set bioclimatic variables that have been commonly related mangroves. show important position Latitudinal between exceed 5°, 7° 10° western North America, Australia northern West Africa, respectively. In areas, such as Japan, correspond exceeding 600 mm annual precipitation > 10 °C minimum temperature coldest month. conclude dissimilarities mapping parts world can jeopardise inferences climatic thresholds. expect efforts should prioritise greater accuracy, ideally combining field-based surveys very high-resolution data. An accurate representation will contribute better predicting dynamics shifts

Language: Английский

Blue carbon as a natural climate solution DOI
Peter I. Macreadie, Micheli Duarte de Paula Costa, Trisha B. Atwood

et al.

Nature Reviews Earth & Environment, Journal Year: 2021, Volume and Issue: 2(12), P. 826 - 839

Published: Nov. 1, 2021

Language: Английский

Citations

593
High-resolution mapping of losses and gains of Earth’s tidal wetlands DOI Open Access
Nicholas Murray, Thomas A. Worthington, Peter Bunting

et al.

Science, Journal Year: 2022, Volume and Issue: 376(6594), P. 744 - 749

Published: May 12, 2022

Tidal wetlands are expected to respond dynamically global environmental change, but the extent which wetland losses have been offset by gains remains poorly understood. We developed a analysis of satellite data simultaneously monitor change in three highly interconnected intertidal ecosystem types-tidal flats, tidal marshes, and mangroves-from 1999 2019. Globally, 13,700 square kilometers lost, these substantially 9700 km2, leading net -4000 km2 over two decades. found that 27% were associated with direct human activities such as conversion agriculture restoration lost wetlands. All other changes attributed indirect drivers, including effects coastal processes climate change.

Language: Английский

Citations

296
Constraints on the adjustment of tidal marshes to accelerating sea level rise DOI
Neil Saintilan, Katya E. Kovalenko, Glenn R. Guntenspergen

et al.

Science, Journal Year: 2022, Volume and Issue: 377(6605), P. 523 - 527

Published: July 28, 2022

Much uncertainty exists about the vulnerability of valuable tidal marsh ecosystems to relative sea level rise. Previous assessments resilience rise, which marshes can adjust by sediment accretion and elevation gain, revealed contrasting results, depending on contemporary or Holocene geological data. By analyzing globally distributed data, we found that increases in parity with seemingly confirming previously claimed resilience. However, subsidence substrate shows a nonlinear increase accretion. As result, gain is constrained relation deficits emerge are consistent observations vulnerability.

Language: Английский

Citations

114
Drivers of global mangrove loss and gain in social-ecological systems DOI Creative Commons
Valerie Hagger, Thomas A. Worthington, Catherine E. Lovelock

et al.

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: Oct. 26, 2022

Abstract Mangrove forests store high amounts of carbon, protect communities from storms, and support fisheries. Mangroves exist in complex social-ecological systems, hence identifying socioeconomic conditions associated with decreasing losses increasing gains remains challenging albeit important. The impact national governance conservation policies on mangrove at the landscape-scale has not been assessed to date, nor have interactions local economic pressures biophysical drivers. Here, we assess relationship between variables change across coastal geomorphic units worldwide 1996 2016. Globally, find that drivers loss can also be gain, changed over 20 years. association growth appears reversed, shifting negatively impacting mangroves first decade enabling expansion second decade. Importantly, community forestry is promoting expansion, whereas conversion agriculture aquaculture, often occurring protected areas, results loss. Sustainable development, forestry, co-management areas are promising strategies reverse losses, capacity human-livelihoods combat climate change.

Language: Английский

Citations

112
Challenges and opportunities for achieving Sustainable Development Goals through restoration of Indonesia’s mangroves DOI Open Access
Sigit D. Sasmito, Mohammad Basyuni,

Age Kridalaksana

et al.

Nature Ecology & Evolution, Journal Year: 2023, Volume and Issue: 7(1), P. 62 - 70

Published: Jan. 2, 2023

Language: Английский

Citations

89
Large deltas, small deltas: Toward a more rigorous understanding of coastal marine deltas DOI Open Access

Jaia Syvitski,

Edward J. Anthony, Yoshiki Saito

et al.

Global and Planetary Change, Journal Year: 2022, Volume and Issue: 218, P. 103958 - 103958

Published: Oct. 5, 2022

Language: Английский

Citations

87
GWL_FCS30: a global 30 m wetland map with a fine classification system using multi-sourced and time-series remote sensing imagery in 2020 DOI Creative Commons
Xiao Zhang,

Liangyun Liu,

Tingting Zhao

et al.

Earth system science data, Journal Year: 2023, Volume and Issue: 15(1), P. 265 - 293

Published: Jan. 17, 2023

Abstract. Wetlands, often called the “kidneys of earth”, play an important role in maintaining ecological balance, conserving water resources, replenishing groundwater and controlling soil erosion. Wetland mapping is very challenging because its complicated temporal dynamics large spatial spectral heterogeneity. An accurate global 30 m wetland dataset that can simultaneously cover inland coastal zones lacking. This study proposes a novel method for by combining automatic sample extraction method, existing multi-sourced products, satellite time-series images stratified classification strategy. approach allowed generation first map with fine system (GWL_FCS30), including five sub-categories (permanent water, swamp, marsh, flooded flat saline) three tidal (mangrove, salt marsh flats), which was developed using Google Earth Engine platform. We combined expert knowledge, training refinement rules visual interpretation to generate geographically distributed samples. Second, we integrated Landsat reflectance products Sentinel-1 synthetic aperture radar (SAR) imagery various water-level phenological information capture heterogeneity wetlands. Third, applied strategy local adaptive random forest models produce at each 5∘×5∘geographical tile 2020. Lastly, GWL_FCS30, mosaicked 961 5∘×5∘ regional maps, validated 25 708 validation samples, achieved overall accuracy 86.44 % kappa coefficient 0.822. The cross-comparisons other demonstrated GWL_FCS30 performed better capturing patterns wetlands had significant advantages over diversity sub-categories. statistical analysis showed area reached 6.38 million km2, 6.03 km2 0.35 wetlands, approximately 72.96 were poleward 40∘ N. Therefore, conclude proposed suitable large-area product has potential provide vital support management. 2020 freely available https://doi.org/10.5281/zenodo.7340516 (Liu et al., 2022).

Language: Английский

Citations

86
Methane oxidation minimizes emissions and offsets to carbon burial in mangroves DOI Creative Commons
Luiz C. Cotovicz, Gwénaël Abril, Christian J. Sanders

et al.

Nature Climate Change, Journal Year: 2024, Volume and Issue: 14(3), P. 275 - 281

Published: Feb. 8, 2024

Maximizing carbon sequestration in mangroves is part of the global effort to combat climate crisis. However, methane (CH4) emissions can partially offset mangroves. Previous estimates have suggested that CH4 organic burial by 20% with substantial freshwater inputs and/or highly impacted Here we resolve magnitude and drivers mangrove using multiple isotopic tracers across a latitudinal gradient. emission offsets were smaller high-salinity (~7%) than freshwater-influenced (~27%) Carbon was disproportionally high compared understudied tropical areas. Low explained minor minimizing production saline, high-sulfate conditions intense oxidation porewaters surface waters. waters reduced potential aquatic 10–33%. Overall, through preservation restoration less affected previously thought. has been proposed as mitigation strategy for change, yet benefits may be emissions. This study shows are small saline mangroves, leading greater net sequestration.

Language: Английский

Citations

31
Global annual wetland dataset at 30 m with a fine classification system from 2000 to 2022 DOI Creative Commons
Xiao Zhang,

Liangyun Liu,

Tingting Zhao

et al.

Scientific Data, Journal Year: 2024, Volume and Issue: 11(1)

Published: March 23, 2024

Abstract Wetlands play a key role in maintaining ecological balance and climate regulation. However, due to the complex variable spectral characteristics of wetlands, there are no publicly available global 30-meter time-series wetland dynamic datasets at present. In this study, we present novel 30 m annual maps (GWL_FCS30D) using Landsat imagery on Google Earth Engine platform, covering period 2000–2022 containing eight subcategories. Specifically, make full use our prior globally distributed training sample pool, adopt local adaptive classification spatiotemporal consistency checking algorithm generate maps. The GWL_FCS30D were found achieve an overall accuracy Kappa coefficient 86.95 ± 0.44% 0.822, respectively, 2020, show great temporal variability United States European Union. We expect dataset would provide vital support for ecosystems protection sustainable development.

Language: Английский

Citations

20
Derivation of Allometric Equations and Carbon Content Estimation in Mangrove Forests of Malaysia DOI Creative Commons
Waseem Razzaq Khan, Michele Giani, Stanislao Bevilacqua

et al.

Environmental and Sustainability Indicators, Journal Year: 2025, Volume and Issue: unknown, P. 100618 - 100618

Published: Jan. 1, 2025

Language: Английский

Citations

2