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Tanety-SFI: Mapping Soil Fertility Across Madagascar's Open Ecosystems

Year: 2026

Type: software

Abstract: Digital soil mapping pipeline for a five-depth Soil Fertility Index (SFI) across three bioclimatic regions of Madagascar (Central Highlands, Northwest, Southeast). Random Forest models are tuned per depth layer through nested cross-validation with Optuna, cross-checked against a regression-kriging correction on the residuals, interpreted with permutation importance, and predicted wall-to-wall on GPU via cuML's Forest Inference Library.

Source: Zenodo (CERN European Organization for Nuclear Research)

DOI: 10.5281/zenodo.22068537

Authors: Rafidimanantsoa, Sarobidy, Ramifehiarivo, Nandrianina, Ratovoarimanana, Lovafitia, Andriamananjara, Andry, Bouillon, Steven, Devenish, Adam, Randrianantenaina, Antsa Sarobidy, Razakamanarivo, Herintsitohaina

Institutions: University of Antananarivo, KU Leuven, Royal Botanic Garden Edinburgh, Royal Botanic Gardens, Kew

Language: English

Topic: Soil Geostatistics and Mapping

Subfield: Soil Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Life on land, Zero hunger

Open Access status: green

OpenAlex ID: W7204028757

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