cover changes were studied in Kaduna metropolis from 1995 to 2015 through the
application of remote sensing data in GIS environment. The data used comprise
of Landsat TM of 1995, ETM+
of 2005 and OLI of 2015. Colour composites using Bands 4, 3 and 2 were made for
TM and ETM+ while bands
5, 4 and 3 was made for OLI image. The images were resampled to a common UTM
and were radiometrically calibrated using the Chavez's
Cos (t) model. A total of 220
GCPs were used for supervised classification of identified LULC classes.
Maximum likelihood algorithm was used in Ilwis 3.7 GIS software for the
classification of the three datasets before changes were estimated and compared
among the datasets. Results revealed
that vegetation was estimated as the largest land cover during 1995 and 2005
with about 783.0 km2 (65.51%) and 538.9km2 (45.08%)
respectively, but had been converted to urban built-up by 2015 by about 320.3km2
(26.80%). This translates to about 462.7km2 (38.71%) of vegetation
conversion to urban built-up and related uses within a period of 20 years only.
The study concluded that rapid changes observed in LULC in Kaduna metropolis
were largely occasioned by rapid urban population growth, urbanization,
migration and socio-economic developments witnessed during the last two decades
of political dispensation.
Indian Member 40.00
Others Member 3.00