ve species, because they negatively affect biodiversity. We have a ban on introducing alien species in forests - we should only plant native species. Some researchers had high hopes for the Douglas fir, but while it does grow quickly, it also needs a lot of water. Species distribution models that we have prepared for this species indicate that in a changing climate, among the 12 analysed tree species, the Douglas fir will be the most threatened and will lose its climate optimum in the majority of its current range in Europe. (PAP)
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