Indicateurs - Ecosystèmes

© Kathy Weaver
Water Flowers by Kathy Weaver

Fragmentation et régulation du débit des rivières: la densité du barrage

               Autres ressources:

               Carte mondiale du conducteur de la densité du barrage [C.J Vorosmarty et al. (2010), CUNY]

              Map of fragmentation and flow regulation by large river systems, 2005 [WWDR2, Map 5.3]

              Figure of the fragmentation and flow regulation by biome type, 2005 [WWDR2, Figure 5.4]

              Figure of the effects of river fragmentation and flow regulation by region and biome type, 2005 [WWDR3, Figure 8.2]

Azote dissout (nitrates + dioxyde d’azote)

                  Autres ressources: 

                  Map of Inorganic nitrogen concentrations for major watersheds by region, 1979–90 and 1991–2003 [WWDR2, Map 5.2]

                  Map of the percent change of NO3 + NO2-N in selected watersheds 1990-99 and 2000-07

Tendances observées dans la protection du bassin versant

                 Autres ressources: 

                 Terrestrial areas protected [January 2010. Cambridge, UK: UNEP-WCMC]

                 Distribution and degree of protection of wetland habitats by region [WWDR2, Figure 5.7]

Indice des tendances des populations d’espèces d’eau douce

                Autres ressources: 

                Figure of the Living Planet Index, 1970-2000 [WWDR2, Figure 5.2]

                Figure of the biodiversity in freshwater species, 1970-2005 [WWDR3, Figure 8.1]

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