Effects of climate, fire, and humans on forest dynamics: forest simulations compared to the palaeological record

Keller, Franziska; Lischke, Heike; Mathis, Thomas; Möhl, Adrian; Wick, Lucia; Ammann, Brigitta; Kienast, Felix (2002). Effects of climate, fire, and humans on forest dynamics: forest simulations compared to the palaeological record. Ecological Modelling, 152(2-3), pp. 109-127. Elsevier 10.1016/S0304-3800(02)00011-X

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In order to find out which factors influenced the forest dynamics in northern Italy during the Holocene, a palaeoecological approach involving pollen analysis was combined with ecosystem modelling. The dynamic and distribution based forest model DisCForm was run with different input scenarios for climate, species immigration, fire, and human impact and the similarity of the simulations with the original pollen record was assessed. From the comparisons of the model output and the pollen core, it appears that immigration was most important in the first part of the Holocene, and that fire and human activity had a major influence in the second half. Species not well represented in the simulation outputs are species with a higher abundance in the past than today (Corylus), with their habitat in riparian forests (Alnus) or with a strong response to human impact (Castanea).

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