2026-06-27http://hdl.handle.net/123456789/238620Forest influences can be divided into three practical scientific groups: the influence on climate; the influence on soil; and the influence on water. This issue of Unasylva presents a collection of articles offering new information or perspectives on each of these groups. A fourth category relating to psychological or spiritual influences, although potentially significant and worthy of investigation, is not considered here.56FAODocument