Abstract
The study was conducted on the Spatio-temporal assessment of vegetation cover dynamics in the Kurmi Region of Taraba State, in the Savannah belt of Nigeria, using remotely sensed satellite data from LANDSAT and the Geographic Information System. The result shows that from 2010 to 2015, there was an increase in none vegetative areas (Builtup, Barren, Rock, sand) by 6.1% and a reduction of vegetation by 6.1%, also from the year 2015 to 2020, there was an increase in the none vegetative areas (Builtup, Barren, Rock, sand) by 17.9% and reduction of vegetation by 17.9%, while from 2010 to 2020 there was an increase in none vegetative areas (Builtup, Barren, Rock, sand) by 24% and reduction of vegetation by 24%. Thus, the results of this study confirm that Spatio-temporal assessment of vegetation cover dynamics using NDVI by LANDSAT TM, ETM+ and OLI data offer an excellent potential tool for characterizing and understanding vegetation changes occurring in transitional areas like the Kurmi region of Taraba State. Furthermore, the study recommended that alternative domestic energy sources, e.g. kerosene, be provided to the low-income earners to avoid over-dependence on fuelwood sourced from deforestation.
Highlights
The vegetation cover works as a thermal barrier between the atmosphere and the ground, and it helps to redistribute snow cover
MATERIALS AND METHODS 2.1 The Study Area The Kurmi region of Taraba State, Nigeria lies within 7° 00’ to 8° 00’ North and 10° 00' to 11° 00' East occupying an area of 4,353 km[2] (Figure 1), with an average elevation of 265 m above sea level, having undulating topography consisting both isolated and chains of mountains across some areas dissected by three main rivers namely River Ndaforo, Bell and Bisaula
The NDVI differencing approach is straightforward to construct and interpret; it does not offer entire change direction matrices (Lu et al, 2004), and the index differencing is subject to registration error (Gong et al, 1992)
Summary
The vegetation cover works as a thermal barrier between the atmosphere and the ground, and it helps to redistribute snow cover. There is a notable high increase in the need to reduce forest loss and, in turn, pursue sustainable development pathways (Ajiola & Ilesanmi, 2017) This is because forest ecosystems provide a range of essential services for human well-being (Kalaba et al, 2013; Paumgarten and Shackleton, 2011). According to the United Nations' Food and Agriculture Organization, an estimated 18 million acres (7.3 million hectares) of forest are destroyed each year (MENA Report (2016), nearly the size of Panama (FAO, 2006). Without sufficient reforestation, it will result in declines in habitat and biodiversity, wood for fuel and industrial uses, and decreasing quality of life
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