| ||||||||||||||||||||||
Climate change and tree lines
At high elevation the tree as a life form does not succeed as well as the dwarf shrub, as the latter experiences higher surface temperatures close to the ground. Grace et al. (pp. 537-544) discuss the potential for trees to migrate upwards, as climate warms, thereby colonizing new territory. There is already evidence of an advance of trees at high latitude and high altitude, but in some regions this is prevented by human activities.
| ||||||||||||||||||||||