The crown window - a simple device for measuring tree crowns

Authors
Hussein, KA Albert, M Von Gadow, K
Citation
Ka. Hussein et al., The crown window - a simple device for measuring tree crowns, FORSTWI CEN, 119(1-2), 2000, pp. 43-50
Citations number
20
Categorie Soggetti
Plant Sciences
Journal title
FORSTWISSENSCHAFTLICHES CENTRALBLATT
ISSN journal
00158003 → ACNP
Volume
119
Issue
1-2
Year of publication
2000
Pages
43 - 50
Database
ISI
SICI code
0015-8003(200004)119:1-2<43:TCW-AS>2.0.ZU;2-L
Abstract
The paper presents a new method for assessing crown radii at different tree heights, using a simple mechanical device, the crown window. The accuracy of the crown window measuring device is evaluated using measurement data fr om different objects. The device is easy to manufacture and proved to be mo re useful than other more sophisticated techniques, such as digital photo a nalysis or laser based instruments in estimating crown radii and their corr esponding heights with acceptable accuracy.