IIARD INTERNATIONAL JOURNAL OF GEOGRAPHY AND ENVIRONMENTAL MANAGEMENT (IJGEM )

E-ISSN 2504-8821
P-ISSN 2695-1878
VOL. 10 NO. 9 2024
DOI: 10.56201/ijgem.v10.no9.2024.pg126.144


Spatial Pattern of Landuse/Landcover and Flood Management Strategies by Vulnerable Communities in Kogi State, Nigeria

Innocent E. BELLO, Isaac A. AGBANWU, Ismaila K. ISHAYA, Sunday Y. KPALO


Abstract


Flood is among the most recurring and devastating natural hazards causing colossal loss of lives and severe economic damages throughout the world. Therefore, the objectives of this study are to identify and map landuse/land cover dynamics as they accelerate flooding, identify and examine the effects of flood risk on vulnerable communities and flood management practices in Kogi State. Flood impacted areas and communities vulnerable were identified using handheld GPS receiver, while LandSat satellite images from USGS Global Land Cover Facility of different epochs (2000, 2005, 2010, 2015, 2020 and 2014) were used to model the variations in spatial pattern of landues/landcover (LULC) change over the years. The LULC change was considered to be partly responsible for flood in the vulnerable communities. Digital Image processing using ENVI Remote Sensing Software was used to classify the images into Crop, Settlement, Water and Island respectively, while ASTER elevation data (DEM) image of 30m Resolution and ArcGIS 10.5 Geographic Information System (GIS) mapping software was used to map the changes and create terrain model and LULC map layouts. The 2020 and 2024 images had errors hence were dropped from further analyses. Using simple random sampling technique, a total of 418 copies of questionnaire sampled across the three senatorial zones of Kogi State: Kogi East - 197 (44.94%), Kogi West - 112 (27.89%), and Kogi Central - 109 (27.16%)) were analyzed using descriptive statistics including graph and tables. Majority of respondents examined in this study have stayed long enough (more than 40 years) to provide useful feedback on flood in the communities examined. The study result indicates that the vulnerable communities include Gadumo, Ganaja, Adankolo and Natako communities. These settlements are in the lowlands of Kogi State which are within the flood plain. Flood impact on the communities includes loss of human lives (21%), loss


keywords:

Flood Management, Vulnerable Communities, Landuse/Landcover, Remote


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