16af1760-da68-4921-9726-4a453c376cf5 SANBI The Metadata Manager +27 21 799 8738 Kirstenbosch Research Centre Cape Town Claremont 7735 South Africa bgishelp@sanbi.org.za 2017-05-26T15:52:30 SANS 1878 FGDC-STD-001-1998 WGS 1984 Renosterveld Ecological Processes Soil Type Transitions (soiltype_transitions_dd.shp) 2004 1.0 CAPE Lowlands Renosterveld – Ecological Processes (Soil Type Transitions). Soil type transitions are areas along which contrasting geological types meet. These areas are spatial components of important ecological and evolutionary processes such as plant diversification and pollinator movements. A 250 m buffer area was mapped on either side of where the two soil types meet (Limestone, Bokkeveld Shale, Malmesbury Shale, Cape Granite, Dolomite, Silcrete/Ferricrete, Sandstone and Sandy soils). The buffer was subdivided into smaller portions and the extent of urban, cultivated or natural vegetation falling within these portions of the process area was then determined. To identify and spatially depict ecological and evolutionary processes associated with specific geological types (and the transition between different types) for conservation planning and land use management purposes. Note that this data layer is only one of several depicting ecological processes. SANBI GIS Officer +27 (21) 799 8738 Kirstenbosch Research Centre Claremont Cape Town 7735 South Africa bgishelp@sanbi.org.za TODO: please enter keyword(s) by using the '+' button below TODO: please enter keyword(s) by using the '+' button below South Africa Copyright Holder: Botanical Society of South Africa 50000 environment 2016-01-01 18.800002 21.040772 -34.700272 -32.475303 SANBI bgishelp@sanbi.org.za ZIP 1 http://bgis.sanbi.org/SpatialDataset/Detail/208 WWW:LINK-1.0-http--related A list of spatial data-sets are available at this URL. BGIS Spatial Datasets In order to spatially depict ecological processes associated with soil transition areas in the Cape Lowlands Renosterveld region, we identified areas (500m wide) along boundaries where contrasting geological types meet (e.g. limestone/shale). The 500m transition areas were then subdivided into parts according to broad landcover categories (see attribute table – ‘Descr’ field): F If > 80% of the land covered by natural vegetation, that part of the transition area was considered as ‘natural vegetation’, F If > 20% of the land covered by urban development, that part was considered as ‘urban area’ F If > 20% of the land covered by intensive agriculture, that part was considered as cultivated land. For more information see more detailed explanations in the reference below. Documentation: Section 9 in Von Hase, A. et al. 2003. A fine-scale conservation plan for Cape Lowlands Renosterveld. Conservation Unit, Report 2/03. Botanical Society of SA, Cape Town. Available on www.botanicalsociety.org.za/ccu - see downloads.