Open AccessRemote Sensing of City Extension and Vegetal Cover Changes along Lagos-Ibadan Access Strip in Nigeria
Author(s) -
John A. Oyedepo,
D.E. Oluyege,
E. I. Babajide,
O.D. Onayemi
Publication year - 2021
Publication title -
journal of applied science and environmental management
Language(s) - English
Resource type - Journals
eISSN - 2659-1499
pISSN - 2659-1502
DOI - 10.4314/jasem.v25i8.26
Subject(s) - hectare , geography , vegetation cover , land cover , vegetation (pathology) , land use , remote sensing , physical geography , environmental science , forestry , hydrology (agriculture) , archaeology , geology , civil engineering , engineering , agriculture , medicine , geotechnical engineering , pathology
The paper employed Remote sensing data in a multi-decadal assessment of vegetal to urban land cover transition along Lagos-Ibadan expressway. The forty-year assessment commenced in 1980 and ended in 2020. Landsat imageries acquired for the respective periods were subjected to supervised classification. Results reveal massive conversion of vegetated areas into built-up areas. The transition became pronounced from the second decade with 30,226 and cumulative of 48,455 Hectares of vegetation transforming into built-up area. During the third decade (2000 to 2010), additional 44,780 and cumulative of 93,235 Hectares of green area was converted into built-up areas. The largest transition was recorded in the last decade (2010 to 2020) during which vegetated area covering 50,827 Hectares was converted to living or industrial areas giving a cumulative transition of 141,065. In year 2020 Pearson moment correlation showed a high negative correlation with a coefficient value of -0.86. Hectares of vegetal areas into built-up or bare surfaces.