Review of Applications of Remote Sensing towards Sustainable Agriculture in the Northern Savannah Regions of Ghana

Abdul-Wadood Moomen, Lily Lisa Yevugah (), Louvis Boakye, Jeff Dacosta Osei and Francis Muthoni
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Abdul-Wadood Moomen: School of Mines and Built Environment, University of Energy and Natural Resources (UENR), Sunyani P.O. Box 214, Ghana
Lily Lisa Yevugah: School of Geosciences, University of Energy and Natural Resources (UENR), Sunyani P.O. Box 214, Ghana
Louvis Boakye: School of Geosciences, University of Energy and Natural Resources (UENR), Sunyani P.O. Box 214, Ghana
Jeff Dacosta Osei: School of Geosciences, University of Energy and Natural Resources (UENR), Sunyani P.O. Box 214, Ghana
Francis Muthoni: International Institute of Tropical Agriculture (IITA), P.O. Box 30709, Nairobi 00100, Kenya

Agriculture, 2024, vol. 14, issue 4, 1-22

Abstract: This paper assesses evidence-based applications of Remote Sensing for Sustainable and Precision Agriculture in the Northern Savanna Regions of Ghana for three decades (1990–2023). During this period, there have been several government policy intervention schemes and pragmatic support actions from development agencies towards improving agriculture in this area with differing level of success. Over the same period, there have been dramatic advances in remote sensing (RS) technologies with tailored applications to sustainable agriculture globally. However, the extent to which intervention schemes have harnessed the incipient potential of RS for achieving sustainable agriculture in the study area is unknown. To the best of our knowledge, no previous study has investigated the synergy between agriculture policy interventions and applications of RS towards optimizing results. Thus, this study used systematic literature review and desk analysis to identify previous and current projects and studies that have applied RS tools and techniques to all aspects of agriculture in the study area. Databases searched include Web of Science, Google Scholar, Scopus, AoJ, and PubMed. To consolidate the gaps identified in the literature, ground-truthing was carried out. From the 26 focused publications found on the subject, only 13 (54%) were found employing RS in various aspects of agriculture observations in the study area. Out of the 13, 5 studies focused on mapping the extents of irrigation areas; 2 mapped the size of crop and pasturelands; 1 focused on soil water and nutrient retention; 1 study focused on crop health monitoring; and another focused on weeds/pest infestations and yield estimation in the study area. On the type of data, only 1 (7%) study used MODIS, 2 (15%) used ASTER image, 1 used Sentinel-2 data, 1 used Planetscope, 1 used IKONOS, 5 used Landsat images, 1 used Unmanned Aerial Vehicles (UAVs) and another 1 used RADAR for mapping and monitoring agriculture activities in the study area. There is no evidence of the use of LiDAR data in the area. These results validate the hypothesis that failing agriculture in the study area is due to a paucity of high-quality spatial data and monitoring to support informed farm decision-making.

Keywords: precision agriculture; sustainable farming; UAVs; earth observation; satellite imagery; northern Ghana (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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