Abstract

RESTREPO O., Héctor Iván; MORENO H., Flavio  and  HOYOS E., Claudia Helena. Incidence of progressive deterioration of urban trees in the Aburrá valley, Colombia. Colomb. for. [online]. 2015, vol.18, n.2, pp.225-240. ISSN 0120-0739.  https://doi.org/10.14483/udistrital.jour.colomb.for.2015.2.a04.

The urban forest of the municipalities of the Aburra Valley, Colombia, is deteriorating as a result of drought and heat stress, air pollution, urbanization, pests and diseases. In order to record the symptoms of progressive deterioration (DP) of trees such as wilting of branches and downward drying, a sample of 11 710 individuals from 25 tree species and palms in the metropolitan area of the Aburrá Valley was carried out. A multivariate logit model was estimated to relate the incidence of DP with dasometric characteristics of individuals, the planting site and the extent of damage. 720 individuals with DP (incidence 6.1%) were found. The logit model had a satisfactory fit to the data and showed that there is a statistically significant relationship between the incidence of tree deterioration and tree diameter, location (municipality), species, planting site (green, hard floor, container ) and other damaging factors.

Keywords : metropolitan area of the Aburrá Valley; logit models; downward drying; urban forestry.

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