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
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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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)
- Creator
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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
- DOI
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10.3112/erdkunde.2010.01.02
- URN
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urn:nbn:de:101:1-2410281817036.698268209940
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:36 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- 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
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