Urban climate modifies tree growth in Berlin

Jens Dahlhausen, Thomas Rötzer, Peter Biber, Enno Uhl, Hans Pretzsch

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Climate, e.g., air temperature and precipitation, differs strongly between urban and peripheral areas, which causes diverse life conditions for trees. In order to compare tree growth, we sampled in total 252 small-leaved lime trees (Tilia cordata Mill) in the city of Berlin along a gradient from the city center to the surroundings. By means of increment cores, we are able to trace back their growth for the last 50 to 100 years. A general growth trend can be shown by comparing recent basal area growth with estimates from extrapolating a growth function that had been fitted with growth data from earlier years. Estimating a linear model, we show that air temperature and precipitation significantly influence tree growth within the last 20 years. Under consideration of housing density, the results reveal that higher air temperature and less precipitation led to higher growth rates in high-dense areas, but not in low-dense areas. In addition, our data reveal a significantly higher variance of the ring width index in areas with medium housing density compared to low housing density, but no temporal trend. Transferring the results to forest stands, climate change is expected to lead to higher tree growth rates.

Original languageEnglish
Pages (from-to)795-808
Number of pages14
JournalInternational Journal of Biometeorology
Volume62
Issue number5
DOIs
StatePublished - 1 May 2018

Keywords

  • Growth trend
  • Lime trees
  • Urban heat island effect
  • Urban trees

Fingerprint

Dive into the research topics of 'Urban climate modifies tree growth in Berlin'. Together they form a unique fingerprint.

Cite this