Dynamics of shifting cultivation landscapes in Northern Lao PDR between 2000 and 2009 based on an analysis of MODIS time series and Landsat images

K Hurni, C Hett, A Heinimann, P Messerli, U Wiesmann - Human Ecology, 2013 - Springer
Human Ecology, 2013Springer
The rotational nature of shifting cultivation poses several challenges to its detection by
remote sensing. Consequently, there is a lack of spatial data on the dynamics of shifting
cultivation landscapes on a regional, ie sub-national, or national level. We present an
approach based on a time series of Landsat and MODIS data and landscape metrics to
delineate the dynamics of shifting cultivation landscapes. Our results reveal that shifting
cultivation is a land use system still widely and dynamically utilized in northern Laos. While …
Abstract
The rotational nature of shifting cultivation poses several challenges to its detection by remote sensing. Consequently, there is a lack of spatial data on the dynamics of shifting cultivation landscapes on a regional, i.e. sub-national, or national level. We present an approach based on a time series of Landsat and MODIS data and landscape metrics to delineate the dynamics of shifting cultivation landscapes. Our results reveal that shifting cultivation is a land use system still widely and dynamically utilized in northern Laos. While there is an overall reduction in the areas dominated by shifting cultivation, some regions also show an expansion. A review of relevant reports and articles indicates that policies tend to lead to a reduction while market forces can result in both expansion and reduction. For a better understanding of the different factors affecting shifting cultivation landscapes in Laos, further research should focus on spatially explicit analyses.
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