A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space

While groundwater-dependent ecosystems (GDEs) occupy only a small portion of the Earth’s surface, they hold significant ecological value by providing essential ecosystem services such as habitat for flora and fauna, carbon sequestration, and erosion control. However, GDE functionality is increasingl...

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Main Authors: Chantel Nthabiseng Chiloane, Timothy Dube, Mbulisi Sibanda, Tatenda Dalu, Cletah Shoko
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Remote Sensing
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Online Access:https://www.mdpi.com/2072-4292/17/8/1460
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author Chantel Nthabiseng Chiloane
Timothy Dube
Mbulisi Sibanda
Tatenda Dalu
Cletah Shoko
author_facet Chantel Nthabiseng Chiloane
Timothy Dube
Mbulisi Sibanda
Tatenda Dalu
Cletah Shoko
author_sort Chantel Nthabiseng Chiloane
collection DOAJ
description While groundwater-dependent ecosystems (GDEs) occupy only a small portion of the Earth’s surface, they hold significant ecological value by providing essential ecosystem services such as habitat for flora and fauna, carbon sequestration, and erosion control. However, GDE functionality is increasingly threatened by human activities, rainfall variability, and climate change. To address these challenges, various methods have been developed to assess, monitor, and understand GDEs, aiding sustainable decision-making and conservation policy implementation. Among these, remote sensing and advanced machine learning (ML) techniques have emerged as key tools for improving the evaluation of dryland GDEs. This study provides a comprehensive overview of the progress made in applying advanced ML algorithms to assess and monitor GDEs. It begins with a systematic literature review following the PRISMA framework, followed by an analysis of temporal and geographic trends in ML applications for GDE research. Additionally, it explores different advanced ML algorithms and their applications across various GDE types. The paper also discusses challenges in mapping GDEs and proposes mitigation strategies. Despite the promise of ML in GDE studies, the field remains in its early stages, with most research concentrated in China, the USA, and Germany. While advanced ML techniques enable high-quality dryland GDE classification at local to global scales, model performance is highly dependent on data availability and quality. Overall, the findings underscore the growing importance and potential of geospatial approaches in generating spatially explicit information on dryland GDEs. Future research should focus on enhancing models through hybrid and transformative techniques, as well as fostering interdisciplinary collaboration between ecologists and computer scientists to improve model development and result interpretability. The insights presented in this study will help guide future research efforts and contribute to the improved management and conservation of GDEs.
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spelling doaj-art-7442bb8f20b44c158fd064dbe332caae2025-08-20T02:18:01ZengMDPI AGRemote Sensing2072-42922025-04-01178146010.3390/rs17081460A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from SpaceChantel Nthabiseng Chiloane0Timothy Dube1Mbulisi Sibanda2Tatenda Dalu3Cletah Shoko4Institute of Water Studies, Department of Earth Sciences, University of the Western Cape, Bellville, Cape Town 7535, South AfricaInstitute of Water Studies, Department of Earth Sciences, University of the Western Cape, Bellville, Cape Town 7535, South AfricaDepartment of Geography, Environmental Studies and Tourism, University of the Western Cape, Bellville, Cape Town 7535, South AfricaAquatic Systems Research Group, School of Biology and Environmental Sciences, University of Mpumalanga, Nelspruit 1201, South AfricaDivision of Geography, School of Geography, Archaeology and Environmental Studies, University of Witwatersrand, Johannesburg 2050, South AfricaWhile groundwater-dependent ecosystems (GDEs) occupy only a small portion of the Earth’s surface, they hold significant ecological value by providing essential ecosystem services such as habitat for flora and fauna, carbon sequestration, and erosion control. However, GDE functionality is increasingly threatened by human activities, rainfall variability, and climate change. To address these challenges, various methods have been developed to assess, monitor, and understand GDEs, aiding sustainable decision-making and conservation policy implementation. Among these, remote sensing and advanced machine learning (ML) techniques have emerged as key tools for improving the evaluation of dryland GDEs. This study provides a comprehensive overview of the progress made in applying advanced ML algorithms to assess and monitor GDEs. It begins with a systematic literature review following the PRISMA framework, followed by an analysis of temporal and geographic trends in ML applications for GDE research. Additionally, it explores different advanced ML algorithms and their applications across various GDE types. The paper also discusses challenges in mapping GDEs and proposes mitigation strategies. Despite the promise of ML in GDE studies, the field remains in its early stages, with most research concentrated in China, the USA, and Germany. While advanced ML techniques enable high-quality dryland GDE classification at local to global scales, model performance is highly dependent on data availability and quality. Overall, the findings underscore the growing importance and potential of geospatial approaches in generating spatially explicit information on dryland GDEs. Future research should focus on enhancing models through hybrid and transformative techniques, as well as fostering interdisciplinary collaboration between ecologists and computer scientists to improve model development and result interpretability. The insights presented in this study will help guide future research efforts and contribute to the improved management and conservation of GDEs.https://www.mdpi.com/2072-4292/17/8/1460anthropogenic pressuredata analyticsdrylandsecological integrityhydrological uncertaintyspatial data
spellingShingle Chantel Nthabiseng Chiloane
Timothy Dube
Mbulisi Sibanda
Tatenda Dalu
Cletah Shoko
A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
Remote Sensing
anthropogenic pressure
data analytics
drylands
ecological integrity
hydrological uncertainty
spatial data
title A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
title_full A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
title_fullStr A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
title_full_unstemmed A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
title_short A Summary of Recent Advances in the Literature on Machine Learning Techniques for Remote Sensing of Groundwater Dependent Ecosystems (GDEs) from Space
title_sort summary of recent advances in the literature on machine learning techniques for remote sensing of groundwater dependent ecosystems gdes from space
topic anthropogenic pressure
data analytics
drylands
ecological integrity
hydrological uncertainty
spatial data
url https://www.mdpi.com/2072-4292/17/8/1460
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