Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)
Published: Jan. 28, 2025
Language: Английский
Science Bulletin, Journal Year: 2023, Volume and Issue: 68(12), P. 1306 - 1316
Published: May 10, 2023
Language: Английский
Citations
169
Forests, Journal Year: 2023, Volume and Issue: 14(9), P. 1698 - 1698
Published: Aug. 23, 2023
Mangroves stand out as one of the most diverse and biologically significant natural systems in world. Playing critical roles maintaining health productivity coastal ecosystems, mangroves provide a range services functions, including habitat for local fauna flora, food other goods, carbon sequestration, protection from disasters such storm surges erosion. It is also evident that face several threats, which have already led to gradual depletion mangrove areas worldwide. Based on analysis current related historical literature data, this review summarises functions threats challenges associated with management practices. Our findings suggest development, expanded aquaculture, deforestation, climate change, implications eutrophication, diseases, pollution are major factors posing sustainability. We highlight various challenges, land use conflict, lack stringent regulatory actions, inadequate policy government frameworks, community awareness, underlie ineffective management. The implementation inclusive coordinated approaches involving stakeholders different backgrounds interests, governmental non-governmental organisations, academia essential restoration sustainable by adapting mitigation strategies.
Language: Английский
Citations
91
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
85
Cell Reports Sustainability, Journal Year: 2024, Volume and Issue: 1(2), P. 100015 - 100015
Published: Feb. 1, 2024
Coral reefs underpin the environmental, social, and economic fabrics of much world's tropical coast. Yet, fine-scale distribution composition coral have never been reported consistently across planet. Here, we present new area estimates enabled by global geomorphic zone benthic substrate maps at 5 m pixel resolution. We revise reef to 348,361 km2 shallow 80,213 (46,237–106,319 km2, 95% confidence interval) habitat. The mapping used more than 1.5 million training samples supported 480+ data contributions deploy a classification over 100 trillion pixels from Sentinel-2 satellites Planet Dove CubeSat constellation. publicly available are accessible via Allen Atlas Google Earth Engine already being thousands people improve conservation, management, research ecosystems.
Language: Английский
Citations
22
Ecosphere, Journal Year: 2024, Volume and Issue: 15(3)
Published: March 1, 2024
Abstract Mangroves are one of the most carbon‐dense forests on Earth and have been highlighted as key ecosystems for climate change mitigation adaptation. Hundreds studies investigated how mangroves fix, transform, store, export carbon. Here, we review synthesize previously known emerging carbon pathways in mangroves, including gains (woody biomass accumulation, deadwood soil sequestration, root litterfall production), transformations (food web transfer through herbivory, decomposition), losses (respiration CO 2 CH 4 , export, particulate dissolved export). We then technologies available to measure fluxes their potential, limitations. also compare mangrove net ecosystem productivity (NEP) with terrestrial forests. Finally, update global estimates current values area. found that contributions recently fluxes, such respiration minor (<1 Tg C year −1 ), while lateral significant (>35 ). Dissolved inorganic exports an order magnitude higher than other processes were highly variable, highlighting need further studies. Gross primary (GPP) (ER) per area within same However, ER/GPP was lower explaining sequestration. estimate mean NEP 109.1 (7.4 Mg ha ) or a budget balance, accounting losses, 66.6 (4.5 Overall, productive, despite due tidal exchange, they sinks.
Language: Английский
Citations
18
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
17
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Jan. 28, 2025
Language: Английский
Citations
3
Scientific Data, Journal Year: 2025, Volume and Issue: 12(1)
Published: Jan. 4, 2025
Abstract Mangrove forests thrive along global tropical coasts, acting as a barrier that protects coastlines against storm surges and nurseries for an entire food web. They are also known their high carbon sequestration rates soil stocks. We introduce new mangrove canopy height map generated from TanDEM-X spaceborne elevation measurements collected during the 2011–2013 period with 12-meter spatial resolution accuracy of 2.4 meters (RMSE). Height was calibrated validated using GEDI mission data independently verified airborne Lidar. The tallest stands reach nearly 60 in Colombia Gabon, potentially other countries. captures broader range heights finer details than available products use optical imagery. This dataset can aid evaluating ecosystem services at local regional scales, improving our understanding factors controlling structure, supporting conservation, climate mitigation adaptation strategies.
Language: Английский
Citations
2
Published: Oct. 1, 2022
The State of Climate Action 2022 provides a comprehensive assessment the global gap in climate action across world’s highest-emitting systems, highlighting where recent progress made reducing GHG emissions, scaling up carbon removal, and increasing finance must accelerate over next decade to keep Paris Agreement’s goal limit warming 1.5°C within reach.
Language: Английский
Citations
49
Marine Policy, Journal Year: 2023, Volume and Issue: 156, P. 105788 - 105788
Published: Aug. 15, 2023
As interest in natural climate mitigation solutions continues to grow, there is an essential role for coastal and ocean ecosystems ("blue carbon") play. To meet targets, however, it crucial that human actions protect or restore blue carbon sinks are based on solid science actionable management opportunities increase reduce emissions from ecosystem loss. Here, we reaffirm the of wetlands opportunities. We update state regarding existing pathways explore expanding new systems. Specifically, analyze those categorize as "emerging" (e.g., interventions involving macroalgae - both cultivated wild, tidal flats, marine sediments) where action may be able these sinks, but currently have insufficient information ensure their benefit additional. revisit "non-actionable" calcifying organisms fauna) scientific evidence clear no benefit, too uncertain claim can definitively sinks. With limited funding action, critical efforts focus projects with most potential. Blue only one piece challenge, important one. Continued research investment developing policy warranted emerging At same time, world must continue work decrease rapidly, invest other solutions, scale renewable energy technologies.
Language: Английский
Citations
36