A case study of carbon fluxes from land change in the Southwest Brazilian Amazon
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Abstract
Worldwide, land change is responsible for one-fifth of anthropogenic carbon emissions. In Brazil, three-quarters of carbon emissions originate from land change. This study represents a municipal-scale study of carbon fluxes from vegetation in Rio Branco, Brazil. Land-cover maps of pasture, forest, and secondary growth from 1993, 1996, 1999, and 2003 were produced using an unsupervised classification method (overall accuracy = 89%). Carbon fluxes from land change over the decade of imagery were estimated from transitions between land-cover categories for each time interval. This article presents new methods for estimating emissions reductions from carbon stored in the vegetation that replaces forests (e.g., pasture) and sequestration by new (>10–15 years) forests, which reduced gross emissions by 16, 15, and 22% for the period of 1993–1996, 1996–1999, and 1999–2003, respectively. The methods used in the analysis are broadly applicable and provide a comprehensive characterization of regional-scale carbon fluxes from land change.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A case study of carbon fluxes from land change in the Southwest Brazilian Amazon |
| Series title | Journal of Land Use Science |
| DOI | 10.1080/17474230903222481 |
| Volume | 4 |
| Issue | 4 |
| Year Published | 2009 |
| Language | English |
| Publisher | Taylor and Francis |
| Contributing office(s) | Alaska Science Center Geography |
| Description | 16 p. |
| First page | 233 |
| Last page | 248 |
| Country | Brazil |
| Other Geospatial | Southwest Brazilian Amazon Rainforest |
| Google Analytic Metrics | Metrics page |