Global rarity of intact coastal regions DOI
Brooke Williams, James E. M. Watson, Hawthorne L. Beyer

et al.

Conservation Biology, Journal Year: 2021, Volume and Issue: 36(4)

Published: Dec. 15, 2021

Management of the land-sea interface is essential for global conservation and sustainability objectives because coastal regions maintain natural processes that support biodiversity livelihood billions people. However, assessments have focused strictly on either terrestrial or marine realm. Consequently, understanding overall state Earth's poor. We integrated human footprint cumulative impact maps in a assessment anthropogenic pressures affecting regions. Of globally, 15.5% had low pressure, mostly Canada, Russia, Greenland. Conversely, 47.9% were heavily affected by humanity, most countries (84.1%) >50% their degraded. Nearly half (43.3%) protected areas across exposed to high pressures. To meet objectives, all nations must undertake greater actions preserve restore within borders.costa, huella humana, impacto humano cumulativo, litoral, presión restauración, tierras vírgenes Resumen El manejo de la interfaz entre tierra y el mar es esencial para los objetivos mundiales conservación sustentabilidad ya que las regiones costeras mantienen procesos naturales sostienen biodiversidad al sustento miles millones personas. Sin embargo, análisis se han enfocado estrictamente en ámbito marino o terrestre, pero no ambos. Por consiguiente, conocimiento del estado general planeta muy pobre. Integramos terrestre humana mapas marinos cumulativo un presiones antropogénicas afectan áreas costeras. De todo mundo, tuvieron una antropogénica reducida, principalmente Canadá, Rusia Groenlandia. En cambio, estuvieron fuertemente afectas por humanidad, mayoría países sus litorales encuentran degradadas. Casi mitad protegidas tienen grado exposición fuertes humanas. Para cumplir sustentabilidad, todos deben emprender mejores acciones preservar restaurar dentro fronteras.

Language: Английский

Half of global methane emissions come from highly variable aquatic ecosystem sources DOI
Judith A. Rosentreter, Alberto Borges, Bridget R. Deemer

et al.

Nature Geoscience, Journal Year: 2021, Volume and Issue: 14(4), P. 225 - 230

Published: April 1, 2021

Language: Английский

Citations

743
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
Global Mangrove Extent Change 1996–2020: Global Mangrove Watch Version 3.0 DOI Creative Commons
Peter Bunting, Åke Rosenqvist, Lammert Hilarides

et al.

Remote Sensing, Journal Year: 2022, Volume and Issue: 14(15), P. 3657 - 3657

Published: July 30, 2022

Mangroves are a globally important ecosystem that provides wide range of system services, such as carbon capture and storage, coastal protection fisheries enhancement. have significantly reduced in global extent over the last 50 years, primarily result deforestation caused by expansion agriculture aquaculture environments. However, limited number studies attempted to estimate changes mangrove extent, particularly into 1990s, despite much loss occurring pre-2000. This study has used L-band Synthetic Aperture Radar (SAR) mosaic datasets from Japan Aerospace Exploration Agency (JAXA) for 11 epochs 1996 2020 develop long-term time-series change. The map-to-image approach change detection where baseline map (GMW v2.5) was updated using thresholding contextual mask. applied between all image-date pairs producing 10 maps each epoch, which were summarised produce time-series. resulting had an estimated accuracy 87.4% (95th conf. int.: 86.2–88.6%), although accuracies individual gain classes lower at 58.1% (52.4–63.9%) 60.6% (56.1–64.8%), respectively. Sources error included misregistration SAR datasets, could only be partially corrected for, but also confusion fragmented areas mangroves, around ponds. Overall, 152,604 km2 (133,996–176,910) mangroves identified 1996, with this decreasing −5245 (−13,587–1444) total 147,359 (127,925–168,895) 2020, representing 3.4% 24-year time period. Global Mangrove Watch Version 3.0 represents most comprehensive record achieved date is expected support activities, including ongoing monitoring environment, defining assessments progress toward conservation targets, protected area planning risk ecosystems worldwide.

Language: Английский

Citations

255
Current and projected global extent of marine built structures DOI
Ana B. Bugnot, Mariana Mayer‐Pinto, Laura Airoldi

et al.

Nature Sustainability, Journal Year: 2020, Volume and Issue: 4(1), P. 33 - 41

Published: Aug. 31, 2020

Language: Английский

Citations

248
Mapping coastal wetlands of China using time series Landsat images in 2018 and Google Earth Engine DOI Creative Commons
Xinxin Wang,

Xiangming Xiao,

Zhenhua Zou

et al.

ISPRS Journal of Photogrammetry and Remote Sensing, Journal Year: 2020, Volume and Issue: 163, P. 312 - 326

Published: April 2, 2020

Language: Английский

Citations

235
Rapid, robust, and automated mapping of tidal flats in China using time series Sentinel-2 images and Google Earth Engine DOI

Mingming Jia,

Zongming Wang, Dehua Mao

et al.

Remote Sensing of Environment, Journal Year: 2021, Volume and Issue: 255, P. 112285 - 112285

Published: Jan. 18, 2021

Language: Английский

Citations

217
A function-based typology for Earth’s ecosystems DOI Creative Commons
David A. Keith, José R. Ferrer‐Paris, Emily Nicholson

et al.

Nature, Journal Year: 2022, Volume and Issue: 610(7932), P. 513 - 518

Published: Oct. 12, 2022

Abstract As the United Nations develops a post-2020 global biodiversity framework for Convention on Biological Diversity, attention is focusing how new goals and targets ecosystem conservation might serve its vision of ‘living in harmony with nature’ 1,2 . Advancing dual imperatives to conserve sustain services requires reliable resilient generalizations predictions about responses environmental change management 3 Ecosystems vary their biota 4 , service provision 5 relative exposure risks 6 yet there no globally consistent classification ecosystems that reflects functional management. This hampers progress developing sustainability goals. Here we present International Union Conservation Nature (IUCN) Global Ecosystem Typology, conceptually robust, scalable, spatially explicit approach functions, biota, remedies across entire biosphere. The outcome major cross-disciplinary collaboration, this novel places all Earth’s into unifying theoretical context guide transformation policy from local scales. information infrastructure will support knowledge transfer ecosystem-specific restoration, standardized risk assessments, natural capital accounting framework.

Language: Английский

Citations

217
Rebound in China’s coastal wetlands following conservation and restoration DOI
Xinxin Wang, Xiangming Xiao, Xiao Xu

et al.

Nature Sustainability, Journal Year: 2021, Volume and Issue: 4(12), P. 1076 - 1083

Published: Oct. 28, 2021

Language: Английский

Citations

206
Heavy metal pollution in coastal wetlands: A systematic review of studies globally over the past three decades DOI
Chunming Li, Hanchen Wang, Xiaolin Liao

et al.

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 424, P. 127312 - 127312

Published: Sept. 27, 2021

Language: Английский

Citations

202
Variable Impacts of Climate Change on Blue Carbon DOI Creative Commons
Catherine E. Lovelock, Ruth Reef

One Earth, Journal Year: 2020, Volume and Issue: 3(2), P. 195 - 211

Published: Aug. 1, 2020

Summary

Blue carbon provides opportunities to mitigate climate change while increasing ecosystem services for coastal communities, including adaptation; however, blue ecosystems are vulnerable change, leading uncertainties in the future efficacy of these ecosystems. In this review, we assess potential impacts on carbon. Despite uncertainties, sequestration is enhanced by landward migration habitats, maintenance sediment supply, restoration, and improved water quality. As an example, mangroves could result 1.5 Pg 2100. Mudflats, seaweed beds, swamp forests also contribute mitigation, although there large data gaps. Achieving full requires protection restoration facilitation changes distributions with actions that will deliver adaptation benefits. Conversely, worst-case squeeze scenario, losses 3.4 sequestered 2100 occur.

Language: Английский

Citations

201