Fig. 2: Occurrence of UGs in the DRC.
From: Mapping urban gullies in the Democratic Republic of the Congo
a, All cities investigated for the presence of UGs. Cities marked in red (n = 26) are markedly affected, that is, ≥10 UGs were detected (Methods, ‘Identifying cities significantly affected by UGs’). Seventeen affected cities are located on the Kwango-Kwilu and Kasai Plateaus (indicated in grey49), which are mainly characterized by sandy soils. Colour gradient indicates the elevation50. b, Total spatial extent of the mapped UGs and affected cities. Numbers above the bars indicate the total number of UGs in that city, as mapped on satellite imagery from 2021 to 2023 (Methods, ‘Mapping the extent and expansion rates of UGs’).
