A machine learning-based spatial statistical method for modelling different phases of gully development in South-Eastern Nigeria

Comparative analysis of the expansion rate and soil erodibility factor of some gullies in Nnewi and Nnobi, Southeastern Nigeria

“…The heightened slope instability during this time often leads to the failure of steep gully slope walls due to rising pore pressure levels [4][5][6] .The yearly peak of the rainy season serves as a critical point, amplifying the impact of gully erosion as it widens its catchment area [5][6][7] . Against this backdrop, the need to examine the soil loss rate and the potential consequences of urbanization on gully erosion's magnitude and intensity becomes more pressing in Nnewi and Nnobi [7][8][9] . This study reveals the underlying causes of the 2019 building collapse attributed to gully erosion in Okpunor-Egbu Umudim, Nnewi and unravels the reasons behind the differing levels of gully erosions between Nnewi, a densely populated town, and its less populated neighbour, Nnobi, both located within Anambra State.The distinction in the magnitude and intensity of gully erosions between Nnewi and Nnobi has not gone unnoticed 4,5,[10][11][12][13] .…”