FIG Peer Review Journal


Web-Based Geospatial Information System to Access Land Suitability for Arable Crop Farming in Ekiti State, Nigeria (10280)

Israel Taiwo, Lawrence Adewole, Mofolusho Fagbeja and Ifeoluwa Balogun (Nigeria)
Surv. Israel Taiwo
Senior Technologist
The Federal Polytechnic Ado-Ekiti
Surveying and Geoinformatics Department
P.M.B. 5351, Ado-Ekiti
Corresponding author Surv. Israel Taiwo (email: israeltaiwo[at], tel.: +2348062865973)

[ abstract ] [ paper ] [ handouts ]

Published on the web 2020-02-28
Received 2019-10-01 / Accepted 2020-02-03
This paper is one of selection of papers published for the FIG Working Week 2020 in Amsterdam, the Netherlands and has undergone the FIG Peer Review Process.

FIG Working Week 2020
ISBN 978-87-92853-93-6 ISSN 2307-4086


This work identifies suitable locations for growing arable crops such as cassava, maize and yam to enhance crop yield in Ekiti state. It describes the use of geoinformation and web technology as efficient and effective tools of managing land suitability information in meeting the goals of food security while ensuring sustainable development. Land suitability evaluation for cassava maize and yam was carried out to evaluate the viability and sustainability of the area to grow arable crops. The potentials of the web was leveraged to aid easy access to crop-land suitability information for agriculture extension workers, farmers, and the general public. Accessibility to road, access to water supply, climate, land use/land cover, soil slope, soil available water capacity, pH, soil texture, and topsoil organic carbon content, were used in a combined fuzzy membership, weighted overlay, and fuzzy overlay operation in conformity with FAO guidelines to determine the suitability of the area for the crops. Climate data was acquired from the WorldClim database, land use/land cover information was derived from a classification process of Landsat 8 imagery, soil data were obtained from the Harmonized World Soil Database and topographic data were derived from the Shuttle Radar Topographic Mission (SRTM) satellite imagery. The SCP plugin version 5.3.8 of QGIS 2.14.17 was used in the land use classification process, and ArcGIS 10.2 was utilized in the suitability determination processes. Information on land suitability was made available on the web for easy accessibility to users from a spatially enabled QGIS cloud webserver The research reveals that despite the unfavorable soil slope condition, more than 64% of Ekiti state land is highly suitable for common arable crops, and less than 10% of Ekiti state land is permanently not suitable for agriculture. The work emphasizes that to reduce environmental degradation, negative effects of climate change and the cost incurred by farmers in obtaining land suitability information, the role of spatial data, non-speculative methods of identifying land use suitability and web technology cannot be overemphasized.
Keywords: Geoinformation/GI; Remote sensing; Land management; Access to land; Spatial planning; Sustainable Agriculture; Non-Speculative Land Suitability; Accessibility; Web-based; Fuzzy; Weighted Overlay