Abstract
Land use and land cover (LULC) projections do not always have sufficient spatial resolution to allow them to be used by environmental models that project how LULC impacts a range of variables, including ecosystem services, biodiversity, and hydrology. We present a downscaling method designed to generate the high resolution LULC projections often required for environmental modelling. LULC change is allocated to a high-resolution reference map based on the density of LULC classes in neighbouring grid cells. Increasing a parameter that controls the likelihood of cells adjacent to existing LULC classes being converted to the same class generated less spatially aggregated landscapes that better represented historic LULC patterns in Colombia between 1960 and 2019. This new downscaling method is available as an R package and will enable the reconciliation of the spatial resolution of LULC projections and key processes that are embedded in a range of environmental models.
Original language | English |
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Article number | 105826 |
Number of pages | 14 |
Journal | Environmental Modelling and Software |
Volume | 169 |
Early online date | 23 Sept 2023 |
DOIs | |
Publication status | Published - Nov 2023 |
Bibliographical note
Funding Information:TW was funded by an EASTBIO UKRI BBSRC grant number BB/T00875X/1 . Downscaling simulations and calculation of landscape pattern metrics were performed on the University of Aberdeen HPC, Maxwell.
Data Availability Statement
Software name: LandScaleR.Developer: Tamsin L. Woodman.
Developer contact information: [email protected].
First year available: 2023.
Hardware requirements: PC/Mac.
Software requirements: R statistical environment and language;
Software availability: https://github.com/TamsinWoodman/L
andScaleR;
Cost: free.
Program language: R.
Program size: 3.56 MB.
The code and HILDA+ dataset that were used to validate the LandScaleR method are available at https://github.com/TamsinWoodman
/LandScaleR-validation and https://doi.pangaea.de/10.1594/PANGAEA.921846 (Winkler et al., 2020), respectively.
Keywords
- Colombia
- Downscaling
- Land use and land cover
- Land use models