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Short-rotation forest stands are sensitive to extreme climate conditions during their growth period, which presents a challenge to managing forests and modelling forest growth in a constantly changing climate. We developed climate-sensitive dominant height models for the  Eucalyptus grandis  ×  Eucalyptus urophylla  hybrid (GU) in South Africa. In addition, dominant height growth under three future climate scenarios was investigated. The Chapman– Richards and Gompertz models, modified by within-rotation and long-term climate data, were used to model dominant height. Model testing using independent permanent sample plot data showed that the Gompertz model modified by within-rotation bioclimatic data performed better than the other models. The climate-modified Gompertz model was used to project height growth for eucalypt stands under three future climate scenarios; ‘No change’, ‘RCP4.5’ and ‘RCP8.5’, for two periods: 2050 (years 2040 to 2060); and 2070 (years 2061 to 2080). Climate change might decelerate dominant height growth in the study area, therefore forest management plans need to be adapted accordingly.

Enhancing predictive precision of dominant height projection equations for eucalypts by incorporating rainfall and temperature terms