ASSESSMENT OF CROWN MEASUREMENT TECHNIQUES IN COPPICE TREES OF ZAGROS FORESTS BY ULTRACAM-D AERIAL IMAGERY

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ERFANIFARD YOUSEF; MOUSELO MASOME

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Journal: Journal of Forest and Wood Products Year:2014 | Volume:66 | Issue:4 Page(s): 413-426

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Title

ASSESSMENT OF CROWN MEASUREMENT TECHNIQUES IN COPPICE TREES OF ZAGROS FORESTS BY ULTRACAM-D AERIAL IMAGERY

Author(s)

ERFANIFARD YOUSEF | MOUSELO MASOME | Issue Writer Certificate

Keywords

CIRCULAR CROWN SHAPEQ2

COPPICEQ2

CROWN COVERQ2

ELLIPTICAL CROWN SHAPEQ2

PERSIAN OAKQ2

ULTRACAM-D AERIAL IMAGERYQ2

ZAGROSQ2

Abstract

Crown cover is one of the most important biometric characteristics applied in ZAGROS forests management that its measurement is more important in COPPICE trees because of their asymmetric crown shape. The aim of this research was investigating on the accuracy and precision of different mensuration methods of crown area measurement in PERSIAN OAK COPPICE trees and the possibility of mean crown diameter estimation of these trees by UltraCam-D imagery. The maximum and minimum crown diameters of 125 PERSIAN OAK COPPICE trees were inventoried in a 30 ha plot in the forests of Kohgiluye-BoyerAhmad province. The crown area of each tree was measured on ULTRACAM-D AERIAL IMAGERY of the study area. Two circular and elliptical shapes and two mathematical and geometric methods of calculating mean crown diameter were analyzed in this respect. The results showed that the applied methods have no significant difference with the true crown area and they were accurate enough. Although the crown area of the trees with circular shape and mathematical mean diameter were 8.9 percent and with circular shape and geometric mean diameter and elliptical shape were 7.7 percent greater than the true values. The elliptical shape was also more precise in measuring the crown area than two other methods. It was also possible to estimate the mean crown diameter of PERSIAN OAK COPPICE trees applying the aerial imagery and cubic models with no significant difference from the true values.

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APA: Copy

ERFANIFARD, YOUSEF, & MOUSELO, MASOME. (2014). ASSESSMENT OF CROWN MEASUREMENT TECHNIQUES IN COPPICE TREES OF ZAGROS FORESTS BY ULTRACAM-D AERIAL IMAGERY. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), 66(4), 413-426. SID. https://sid.ir/paper/162990/en

Vancouver: Copy

ERFANIFARD YOUSEF, MOUSELO MASOME. ASSESSMENT OF CROWN MEASUREMENT TECHNIQUES IN COPPICE TREES OF ZAGROS FORESTS BY ULTRACAM-D AERIAL IMAGERY. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2014;66(4):413-426. Available from: https://sid.ir/paper/162990/en

IEEE: Copy

YOUSEF ERFANIFARD, and MASOME MOUSELO, “ASSESSMENT OF CROWN MEASUREMENT TECHNIQUES IN COPPICE TREES OF ZAGROS FORESTS BY ULTRACAM-D AERIAL IMAGERY,” JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 66, no. 4, pp. 413–426, 2014, [Online]. Available: https://sid.ir/paper/162990/en

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