Degraded pasture distribution and woody enrichment strategies for pasture fertility preservation in the Bragantina region, north-eastern Amazon

Abstract: In the densely settled Bragantina region, northern Brazil, smallholder cattle pastures start into compulsory degradation processes indicated, among other factors by the woody encroachment of the resprouting secondary vegetation, nationally called capoeira. By means of Landsat and QuickBird satellite imagery techniques different stages of tree-dominated pastures were identified and the distribution of degraded pastures quantified. This was tested in a supervised Landsat classification from 2006 and 2007, taking QuickBird imageries from 2004 and 2005 as additional ground checks. We found that 42% of the rural Bragantinian landscape has already converted into pastures, 28% in advanced stages of above ground pasture degradation. Our reclassification means that the region is still confronted with a serious ecological pasture problem and that conventional land use classifications, climatological models and carbon calculations, based on Landsat imageries only, underestimate pasture distri.... https://www.erdkunde.uni-bonn.de/article/view/2644

Objekt anzeigen

• Standort: Deutsche Nationalbibliothek Frankfurt am Main
• Umfang: Online-Ressource
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Degraded pasture distribution and woody enrichment strategies for pasture fertility preservation in the Bragantina region, north-eastern Amazon ; volume:64 ; number:1 ; year:2010 ; Erdkunde ; 64, Heft 1 (2010)

Beteiligte, Orts- und Zeitangaben

• Urheber: Hohnwald, Stefan ; Acioli De Abréu, Eliana M. ; Krummel, Timo ; Trautwein, Julia ; Bastos Da Veiga, Jonas ; Wollny, Clemens B. A. ; Braga, Célia M. ; De Azevedo, Calandrini ; Gerold, Gerhard

Weitere Informationen

• DOI: 10.3112/erdkunde.2010.01.02
• URN: urn:nbn:de:101:1-2410281817036.698268209940
• Rechteinformation: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.