Abstract
ABSTRACT The post-pruning growth of the 16 main species planted in urban afforestation in the Metropolitan Region of Belo Horizonte was evaluated in order to adjust the pruning regime, as well as to evaluate the effect of environmental, management, and tree factors on shoot development. Six individuals were selected per species, and the monthly growth of the five largest shoots at the pruned points was monitored to create two scenarios, considering the median and third quartile of the growth data. The grouping analysis of the growth data was carried out, defining groups of pruning regime according to the similarity in the species growth. Correlation and linear regression analyses were also performed for climatic factors, pruning intensity, diameter at breast height (DBH), phytosanitary status, luminosity in the crown, and permeable area in the soil. It was verified that the arboreal species studied presented a differentiated growth response of post-pruning shoots and can be combined into groups of pruning management regimes ranging from 6 to 24 months. Environmental, individual, and management factors can affect tree sprouting.
Highlights
The model of urbanization can directly affect people's quality of life (Cabral, 2013; Salbitano et al, 2016), making it essential to search for alternatives to match population growth and environmental quality (Fontoura, 2011; Miller et al, 2015)
All individuals of Escumilha, Jacaranda, Magnolia, Mangueira, and Munguba sprouted in the first month, and this was the case for only one individual from Oiti and Fícus
There was a tendency for larger shoots to occur in trees of lower CAP
Summary
The model of urbanization can directly affect people's quality of life (Cabral, 2013; Salbitano et al, 2016), making it essential to search for alternatives to match population growth and environmental quality (Fontoura, 2011; Miller et al, 2015). In this context, afforestation in cities fulfills a relevant role in terms of aesthetics, landscape, comfort, and ambience (GómezBaggethun and Barton, 2013). Urban tree-planting is an onerous activity and requires planning and technical consideration (Sagebiel et al, 2017). The planning and adaptation of the methods and maintenance systems of the afforestation promote security for the electrical system and the infrastructure of the city (Miller et al, 2015)
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