Eco-floristic sectors and deforestation threats in Sumatra: identifying new conservation area network priorities for ecosystem-based land use planning

Laumonier Yves, Uryu Yumiko, Stüve Michael, Budiman Arif, Setiabudi Budi, Hadian Oki. 2010. Eco-floristic sectors and deforestation threats in Sumatra: identifying new conservation area network priorities for ecosystem-based land use planning. Biodiversity and Conservation, 19 (1) : 1153-1174.

Quartile : Q2, Sujet : ENVIRONMENTAL SCIENCES / Quartile : Q2, Sujet : BIODIVERSITY CONSERVATION / Quartile : Q2, Sujet : ECOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Biogeographical studies are a necessary step in establishing conservation area networks. Determining the ecological factors influencing vegetation is also a basic principle for hierarchical ecological classifications and a necessary prerequisite for ecosystembased land use planning. Eco-floristic sectors (EFS) have already been identified for the Indonesian island of Sumatra, combining both approaches, dividing it into 38 EFSs representing unique ecosystems in terms of tree flora and environment (Laumonier 1997). The impact of deforestation on individual EFSs has been highly varied and in some cases extreme. We assigned one of five 'extinction risk categories' to each EFS based on the percentage of forest lost between 1985 and 2007. Eighty-five percent of all forest loss (10.2 million ha) occurred in the eastern peneplain, western lowland regions and swamps. In 2007, only 29% of forests were protected by conservation areas, only nine of the 38 EFS had more than 50% of their remaining forest cover protected. 38% of remaining forest was ''critically endangered'', ''endangered'' or ''vulnerable'' EFSs (5 million ha) but only 1 million ha (20%) were protected. Sumatra's existing network of conservation areas does not adequately represent the island's ecosystems. Priorities for a new conservation area network can be formulated for integration into Sumatra's new land use plans at provincial and district level. Decision makers can now use EFSs to locate new conservation areas so they represent and maintain the whole range of the island's diversity.

Mots-clés Agrovoc : gestion des ressources naturelles

Mots-clés géographiques Agrovoc : Sumatra

Classification Agris : P01 - Conservation de la nature et ressources foncières
K01 - Foresterie - Considérations générales
F40 - Écologie végétale

Champ stratégique Cirad : Axe 6 (2005-2013) - Agriculture, environnement, nature et sociétés

Auteurs et affiliations

• Laumonier Yves, CIRAD-ES-UPR BSef (IDN)
• Uryu Yumiko, WWF (USA)
• Stüve Michael, WWF (USA)
• Budiman Arif, WWF (IDN)
• Setiabudi Budi, ORSTOM [Institut français de recherche scientifique et technique pour le développement en coopération] (IDN)
• Hadian Oki, WWF (IDN)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/554072/)

Métriques

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