DEFORESTATION, TRANSFORMATION INTO SAVANNAH AND AGRICULTURAL DEVELOPMENT IN THE SAVANNAH AND FOREST LANDSCAPES OF BENIN’S SUDANO-GUINEAN ZONE ; DEFORESTACIÓN, SABANIZACIÓN Y DESARROLLO AGRÍCOLA DE PAISAJES DE SABANAS-BOSQUES EN EL ÁREA SUDANO-GUINEANA DE BENÍN ; Déforestation, savanisation et développement agricole des paysages de savanes-forêts dans la zone soudano-guinéenne du Bénin

The mosaic forest characterising the munic- ipalities of Banté-Glazoué-Ouessé (Collines district) in Benin’s Sudano-Guinean zone is one of the country’s main sources of agricultural produce and charcoal. These mosaic forests are being degraded in dif- ferent ways. A study of their dynamics over space and time, based on interpretations of Landsat-type imagery (MSS 1972, TM 1986 and ETM+ 2006), using a geographic information system and landscape ecology tools, was conducted to support a possible forest restoration programme. The study results were applied, by means of transition matrices and spa... Mehr ...

Verfasser: Mama, Adi
Bamba, Issouf
Sinsin, Brice
Bogaert, Jan
De Cannière, Charles
Dokumenttyp: Artikel
Erscheinungsdatum: 2014
Verlag/Hrsg.: Cirad
Schlagwörter: structural indices / transforma- tion processes / deforestation / transfor- mation into savannah / agricultural deve- lopment / Landsat imagery / Benin / métricas de patrones / pro- cesos de transformación / deforestación / sabanización / desarrollo agrícola / imagen Landsat / Benín / indices structuraux / processus de transformation / déforestation / savani- sation / développement agricole / image Landsat / Bénin
Sprache: Französisch
Permalink: https://search.fid-benelux.de/Record/base-26889278
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : https://revues.cirad.fr/index.php/BFT/article/view/BFT322-66-75

The mosaic forest characterising the munic- ipalities of Banté-Glazoué-Ouessé (Collines district) in Benin’s Sudano-Guinean zone is one of the country’s main sources of agricultural produce and charcoal. These mosaic forests are being degraded in dif- ferent ways. A study of their dynamics over space and time, based on interpretations of Landsat-type imagery (MSS 1972, TM 1986 and ETM+ 2006), using a geographic information system and landscape ecology tools, was conducted to support a possible forest restoration programme. The study results were applied, by means of transition matrices and spatial structure indices, to assess changes arising from agricultural practice. Four main spatial transformation processes were identified and quantified over the 34-year period (1972 to 2006) chosen for the study: (i) savannah forma- tion, (ii) deforestation, (iii) development of agricultural activities and, (iv) forest restoration. Over this period, the spatial structure dynamics were dominated by slash-and-burn clearing followed by the enlargement of field and fallow patches and tree plantations, aggregation of savan- nah, bare soil and urbanised patches and the elimination of forest patches. ; Los municipios de Banté-Glazoué-Ouessé (departamento de Collines), en el área sudano-guineana de Benín, configuran el territorio de los mosaicos forestales y son uno de los principales proveedores de productos agrícolas y carbón de leña. Dichos mosaicos están sometidos a múl- tiples formas de degradación. Se realizó un estudio de la dinámica espaciotemporal para implementar un programa de res- tauración forestal basándose en la inter- pretación de imágenes de tipo Landsat (MSS 1972, TM 1986 y ETM+ 2006) y mediante el uso de un SIG y herramientas de ecología del paisaje. Los resultados de este estudio permitieron evaluar las mutaciones vinculadas a las prácticas agrícolas mediante el uso de matrices de transición y de métricas de patrones espa- ciales. Se evidenciaron y cuantificaron cuatro grandes procesos de transformación espacial ...