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...|definition of “tree”]], statements how to deal with roads, buildings, timber storage sites and other infrastructure within a forested area, and how to d ...(such as swamp forest, forests in dry areas or forests close to the timber line) and small forest patches there are. If only relatively large and closed f

... is gradually opening up to tree-free land, as for example at the [[timber line]] or at the boundary of deserts (Kleinn 2007<ref name="kleinn2007">Kleinn, ...is relatively easy to determine from aerial photographs) or the connecting line between the stems at the forest edge (that is easily be done in the field).