Chinchilla_et_al_2021

Chinchilla, J., A. Carbonnel, and M. Galleguillos. 2021. Effect of urban tree diversity and condition on surface temperature at the city block scale. Urban Forestry & Urban Greening 60: 127069. doi:10.1016/j.ufug.2021.127069.

Keywords: regulating ecosystem services, UrbanTrees, TemperatureMitigation

  • potential intro refs ch 1
  • pests and disease harm health of trees, resulting in decreased capacity to cool
    • monocrops are a risk / diversity can regulate ecosystem functioning
  • urban forest tree species diversity improves tree health and thus cools more
  • surveyed street trees
  • used Shannon Wiener / evenness / Simpson’s / Pielou’s evenness
  • tree health assessed using vulnerability index, DBH, and height
  • Chang et al 2007 propose that greenspaces < 2 ha are warmer than surroundings and 3+ ha are cooler
  • few species dominating composition
  • positive sig corr between min temp/mean temp and tree diversity
    • correlation is more sig during warmer/drier periods
  • no sig relationships with evenness
  • sig pos corr between biotic disturbance and LST
  • greater thermal stability where DBHs are larger