Map-based elevation of the upper forest limits in troms, northwestern norway

• Main Author: Umemoto Tohru
• Format: Report
• Language: English
• Published: Department of Geography, Tokyo Metropolitan University 2000
• Subjects: forest limit; timberline; ecotone; Scandinavia; Norway; Northern Norway; Troms
• Online Access: https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_uri&item_id=2967; http://hdl.handle.net/10748/3711; https://tokyo-metro-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2967&item_no=1&attribute_id=18&file_no=1

Elevations of birch (Betula pubescens) forest limits in northern Norway are measured by using 56 sheets of 1:50,000 scale topographical maps. The highest positions of forest land cover boundaries on uniform slopes with various aspects are selected as reference points of forest limits. The total number of the points is 1,052. The mean elevation of birch forest limits is 423 m a.s.l. This value shows a good agreement with the previous studies. The mean elevations of forest limits on slopes with four aspects are 394 m (north facing). 375 m (east facing), 452 m (south facing), and 439 m (west facing) respectively. The aspect of slopes with the lowest mean value of forest limits is not the north facing but the east facing in this region.