Journal
JOURNAL OF RANGE MANAGEMENT
Volume 53, Issue 6, Pages 622-626Publisher
SOC RANGE MANAGEMENT
DOI: 10.2307/4003157
Keywords
digital photogrammetry; photo-ecometrics; tree heights; crown closure
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We built digital surface models (DSM) that contain 3D surface morphological information of the entire landscape using digital photogrammetry and aerial photographs, Changes in landscape components such as crown closure and tree height in hardwood rangeland were estimated using DSM. In comparison with manual interpretation results, errors of crown closure and tree hieght estimation using DSM were less than 0.7% and 1.5 m, respectively. This technique can be used for rangeland management, monitoring and ecological studies.
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