| Titre | Anthropogenic, direct pressures on coastal wetlands |
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| Auteur | Newton, A; Icely, J; Cristina, S; Perillo, G M E; Turner, R E; Ashan, D; Cragg, S; Luo, Y; Tu, C; Li, Y; Zhang, H; Ramesh, R; Forbes, D L ; Solidoro, C; Béjaoui, B; Gao, S; Pastres, R; Kelsey, H; Taillie, D; Nhan, N;
Brito, A C; de Lima, R; Kuenzer, C |
| Source | Frontiers in Ecology and Evolution vol. 8, 144, 2020 p. 1-29, https://doi.org/10.3389/fevo.2020.00144  Accès ouvert |
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| Année | 2020 |
| Séries alt. | Ressources naturelles Canada, Contribution externe 20200308 |
| Éditeur | Frontiers Media S.A. |
| Document | publication en série |
| Lang. | anglais |
| DOI | https://doi.org/10.3389/fevo.2020.00144 |
| Media | papier; en ligne; numérique |
| Formats | pdf; pdf; html |
| Province | Territoires du Nord-Ouest; Yukon |
| SNRC | 107; 117 |
| Région | Fleuve Mackenzie; Mer de Beaufort; Chesapeake Bay; Mississippi Delta; Bahia Blanca; Ria Formosa; Malanza Coastal Lagoon; Venice; Bizerte Lagoon; Ichkeul Lake; Watamu; Vembanad Lake; Sundarbans Mangroves;
Yellow River (Huang He) Delta; Yangtze (Changjiang) Delta; Mekong Delta; Gulf of Papua |
| Lat/Long OENS | -180.0000 180.0000 86.0000 -86.0000 |
| Sujets | milieu côtièr; terres humides; écosystèmes; écologie; effets sur l'environnement; exploitation minière; milieu hydrologique; changements du niveau de la mer; Pêcheries; Aquaculture; Tourisme;
Développement urbain; Expédition; Développement industriel; Services écosystémiques; effets cumulatifs; Changement climatique; géologie de l'environnement; hydrogéologie; Nature et environnement; Sciences et technologie; Économie et industrie;
Société et culture; Agriculture; combustibles fossiles |
| Illustrations | cartes de localisation; tableaux; représentations schématiques |
| Diffusé | 2020 07 07 |
| Résumé | (disponible en anglais seulement)
Coastal wetlands, such as saltmarshes and mangroves that fringe transitional waters, deliver important ecosystem services that support human development.
Coastal wetlands are complex social-ecological systems that occur at all latitudes, from polar regions to the tropics. This overview covers wetlands in five continents. The wetlands are of varying size, catchment size, human population and stages of
economic development. Economic sectors and activities in and around the coastal wetlands and their catchments exert multiple, direct pressures. These pressures affect the state of the wetland environment, ecology and valuable ecosystem services. All
the coastal wetlands were found to be affected in some ways, irrespective of the conservation status. The main economic sectors were agriculture, animal rearing including aquaculture, fisheries, tourism, urbanization, shipping, industrial development
and mining. Specific human activities include land reclamation, damming, draining and water extraction, construction of ponds for aquaculture and salt extraction, construction of ports and marinas, dredging, discharge of effluents from urban and
industrial areas and logging, in the case of mangroves, subsistence hunting and oil and gas extraction. The main pressures were loss of wetland habitat, changes in connectivity affecting hydrology and sedimentology, as well as contamination and
pollution. These pressures lead to changes in environmental state, such as erosion, subsidence and hypoxia that threaten the sustainability of the wetlands. There are also changes in the state of the ecology, such as loss of saltmarsh plants and
seagrasses, and mangrove trees, in tropical wetlands. Changes in the structure and function of the wetland ecosystems affect ecosystem services that are often underestimated. The loss of ecosystem services impacts human welfare as well as the
regulation of climate change by coastal wetlands. These cumulative impacts and multi-stressors are further aggravated by indirect pressures, such as sea-level rise. |
| GEOSCAN ID | 326954 |
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