B05 - Land use patterns in Jambi - quantification of structure, heterogeneity and changes of vegetation and land use as a basis for the explanation of ecological and socioeconomic functions
Gross land use changes were evaluated from the official base maps crafted by the Forestry Planning Agency under Ministry of Forestry of Indonesia from Landsat satellite imagery. Land use transformations appear to follow a diverse and complex spatial and temporal pattern, different for the different land use systems. This pattern has not yet been fully assessed, nor were the links and relationships analysed regarding biodiversity, environmental services or social functions. It is the overall goal of B05´s 2nd phase to research into these relationships and to generate spatially explicit data on forest and landscape structure.
In addition to the overarching feature "landscape structure", B05 will research into the relevance of spatial scale and of the definition of reference areas (i.e. "areas of influence" for point observations of socioeconomic and biodiversity variables) in the relationship between ecological functions, socioeconomic functions and landscape structure. B05 works in study areas of different size: mapping of landscape structure will be done for the whole of Jambi and detailed analyses for (1) selected landscapes and villages of particular interest for other CRC projects, (2) the CRC 990 core plots and surroundings, and (3) for areas in and around the Harapan restoration concession forest where transformations are ongoing. For these areas, up-to-date high resolution imagery needs to be acquired.
The CRC will establish further core plots on riparian / wet sites. B05 will craft a digital terrain model to support mapping of riparian sites and to assess its quantitative relevance in terms of area and ecological functions. In addition, a radar based map of soil moisture will be produced that allows B05 to determine the extent of these site conditions. The study area for these detailed analyses of topography and soil wetness will be the Harapan concession forest and surroundings. There, in continuation of inventory and mapping work of the 1st phase, a classification of forest types will be done based on forest structural, spectral and textural characteristics, which includes proximity to water courses and soil moisture. B05 continues to focus on research regarding spatial data. Therefore, B05 will continue contributing to the WebGIS and in this it will closely collaborate with INF Kneib. The WebGIS will serve as a platform to share B05-generated spatially explicit data sets.