A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas

Digital soil mapping (DSM) around the world is mostly conducted in areas with a certain relief characterized by significant heterogeneities in soil-forming factors. However, lowland areas (e.g., plains, low-relief areas), prevalently used for agricultural purposes, might also show a certain variabil...

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Main Authors: Odunayo David Adeniyi, Hauwa Bature, Michael Mearker
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Land
Subjects:
Online Access:https://www.mdpi.com/2073-445X/13/3/379
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author Odunayo David Adeniyi
Hauwa Bature
Michael Mearker
author_facet Odunayo David Adeniyi
Hauwa Bature
Michael Mearker
author_sort Odunayo David Adeniyi
collection DOAJ
description Digital soil mapping (DSM) around the world is mostly conducted in areas with a certain relief characterized by significant heterogeneities in soil-forming factors. However, lowland areas (e.g., plains, low-relief areas), prevalently used for agricultural purposes, might also show a certain variability in soil characteristics. To assess the spatial distribution of soil properties and classes, accurate soil datasets are a prerequisite to facilitate the effective management of agricultural areas. This systematic review explores the DSM approaches in lowland areas by compiling and analysing published articles from 2008 to mid-2023. A total of 67 relevant articles were identified from Web of Science and Scopus. The study reveals a rising trend in publications, particularly in recent years, indicative of the growing recognition of DSM’s pivotal role in comprehending soil properties in lowland ecosystems. Noteworthy knowledge gaps are identified, emphasizing the need for nuanced exploration of specific environmental variables influencing soil heterogeneity. This review underscores the dominance of agricultural cropland as a focus, reflecting the intricate relationship between soil attributes and agricultural productivity in lowlands. Vegetation-related covariates, relief-related factors, and statistical machine learning models, with random forest at the forefront, emerge prominently. The study concludes by outlining future research directions, highlighting the urgency of understanding the intricacies of lowland soil mapping for improved land management, heightened agricultural productivity, and effective environmental conservation strategies.
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spelling doaj.art-f17ab5a51a084abeade623c6bea7edd82024-03-27T13:50:50ZengMDPI AGLand2073-445X2024-03-0113337910.3390/land13030379A Systematic Review on Digital Soil Mapping Approaches in Lowland AreasOdunayo David Adeniyi0Hauwa Bature1Michael Mearker2Department of Earth and Environmental Sciences, University of Pavia, Via Ferrata 1, 27100 Pavia, ItalyDepartment for Sustainable Development and Ecological Transition, University of Eastern Piedmont, Via Duomo 6, 13100 Vercelli, ItalyDepartment of Earth and Environmental Sciences, University of Pavia, Via Ferrata 1, 27100 Pavia, ItalyDigital soil mapping (DSM) around the world is mostly conducted in areas with a certain relief characterized by significant heterogeneities in soil-forming factors. However, lowland areas (e.g., plains, low-relief areas), prevalently used for agricultural purposes, might also show a certain variability in soil characteristics. To assess the spatial distribution of soil properties and classes, accurate soil datasets are a prerequisite to facilitate the effective management of agricultural areas. This systematic review explores the DSM approaches in lowland areas by compiling and analysing published articles from 2008 to mid-2023. A total of 67 relevant articles were identified from Web of Science and Scopus. The study reveals a rising trend in publications, particularly in recent years, indicative of the growing recognition of DSM’s pivotal role in comprehending soil properties in lowland ecosystems. Noteworthy knowledge gaps are identified, emphasizing the need for nuanced exploration of specific environmental variables influencing soil heterogeneity. This review underscores the dominance of agricultural cropland as a focus, reflecting the intricate relationship between soil attributes and agricultural productivity in lowlands. Vegetation-related covariates, relief-related factors, and statistical machine learning models, with random forest at the forefront, emerge prominently. The study concludes by outlining future research directions, highlighting the urgency of understanding the intricacies of lowland soil mapping for improved land management, heightened agricultural productivity, and effective environmental conservation strategies.https://www.mdpi.com/2073-445X/13/3/379geostatistical approachlowlandlow reliefmachine learningSCORPANsoil mapping
spellingShingle Odunayo David Adeniyi
Hauwa Bature
Michael Mearker
A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas
Land
geostatistical approach
lowland
low relief
machine learning
SCORPAN
soil mapping
title A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas
title_full A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas
title_fullStr A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas
title_full_unstemmed A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas
title_short A Systematic Review on Digital Soil Mapping Approaches in Lowland Areas
title_sort systematic review on digital soil mapping approaches in lowland areas
topic geostatistical approach
lowland
low relief
machine learning
SCORPAN
soil mapping
url https://www.mdpi.com/2073-445X/13/3/379
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