Characterizing land-use change over space and time: applying principal components analysis in the Brazilian Legal Amazon

Andrew R. Bell; Jill L. Caviglia-Harris; Anthony D. Cak

doi:10.1080/1747423X.2013.832427

Characterizing land-use change over space and time: applying principal components analysis in the Brazilian Legal Amazon

Andrew R. Bell, Jill L. Caviglia-Harris, Anthony D. Cak

Research output: Contribution to journal › Article › peer-review

Abstract

We apply a principal component analysis to characterize the dimensions of spatio-temporal change in agriculture within the Brazilian Legal Amazon for the period 1996–2006. Around 80% of spatio-temporal variation across a broad set of descriptors could be explained by four trajectories well observed in the region: large-scale ranching, inactive forested property, small-scale farming, and mechanized agriculture. Spatial clustering based on these trajectories reveals a shift in the characteristics of the agricultural frontier, and provides quantitative method for distinguishing functional sub-regions previously suggested in the literature. Our analysis suggests a marked growth in agriculture over the decade between 1996 and 2006, with agricultural development encroaching toward the interior of the Brazilian Amazon not only from the south and southeast, but also from the west.

Original language	English (US)
Pages (from-to)	19-37
Number of pages	19
Journal	Journal of Land Use Science
Volume	10
Issue number	1
DOIs	https://doi.org/10.1080/1747423X.2013.832427
State	Published - Jan 2 2015

Keywords

Brazil
Forest Code
Legal Amazon
agriculture
land-use change
principal component analysis

ASJC Scopus subject areas

Geography, Planning and Development
Earth-Surface Processes
Management, Monitoring, Policy and Law

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