Noun
tree line (plural tree lines)
A division in altitude (or latitude) above which trees tend not to grow on mountains.
tree-line (plural tree-lines)
The edge of the habitat at which trees are capable of growing; the timberline.
tree-line
A conifer tree line is sometimes used (No: Barskoggrense) to divide this zone into two subzones, as the conifers will (usually) not grow as high up as the mountain birch. Source: Internet
Birch forest at 1,320 m above sea level at Sikilsdalshorn is the highest tree line in Norway. Source: Internet
Bogs are common in the boreal zone, with the largest areas in the North and Middle Boreal Zones, as well as in the area just above the tree line. Source: Internet
Fire cycles also tend to be long near the tree line in the subarctic spruce-lichen woodlands. Source: Internet
Environments at higher elevations from convert up to the tree line tend to be wet and marshy. Source: Internet
Just below the tree line, one may find subalpine forests of needleleaf trees, which can withstand cold, dry conditions. citation Below that, montane forests grow. Source: Internet