This is a Vignette on how to use the OpenLand package for exploratory analysis of Land Use and Cover (LUC) time series.
OpenLand is an open-source R package for the analysis of land use and cover (LUC) time series. It includes support for consistency check and loading spatiotemporal raster data and synthesized spatial plotting. Several LUC change (LUCC) metrics in regular or irregular time intervals can be extracted and visualized through one- and multistep sankey and chord diagrams. A complete intensity analysis according to (Aldwaik and Pontius 2012) is implemented, including tools for the generation of standardized multilevel output graphics.
The OpenLand functionality is illustrated for a LUC dataset of São
Lourenço river basin, a major Pantanal wetland contribution area as
provided by the 4th edition of the Monitoring of Changes in
Land cover and Land Use in the Upper Paraguay River Basin - Brazilian
portion - Review Period: 2012 to 2014 (Embrapa
Pantanal et al. 2015). The time series is composed by five LUC
maps (2002, 2008, 2010, 2012 and 2014). The study area of approximately
22,400 km2 is located in the Cerrado Savannah biom in the
southeast of the Brazilian state of Mato Grosso, which has experienced a
LUCC of about 12% of its extension during the 12-years period, including
deforestation and intensification of existing agricultural uses. For
processing in the OpenLand package, the original multi-year shape file
was transformed into rasters and then saved as a 5-layer
RasterStack (SaoLourencoBasin), available from
a public repository (10.5281/zenodo.3685229)
as an .RDA file which can be loaded into
R.