The Aerial Photograph Image Character and Forest Structural Factors Relationship of Castanopsis cuspidata Coppice Woodland and Chamaechiparis obutusa Artificial Forest
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- ASAHIRO Kazuo
- 九州大学大学院芸術工学研究院環境計画部門
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- INOUE Kouhei
- 九州大学大学院芸術工学研究院視覚情報部門
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- SHIGEMATSU Toshinori
- 九州大学大学院芸術工学研究院環境計画部門
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- SETOJIMA Masahiro
- 国際航業株式会社技術センター
Bibliographic Information
- Other Title
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- シイ・カシ萌芽林とヒノキ人工林の空中写真を用いた画像特性値と林分条件要素の関係
- シイ カシ ホウガリン ト ヒノキ ジンコウリン ノ クウチュウ シャシン オ モチイタ ガゾウ トクセイチ ト リンブン ジョウケン ヨウソ ノ カンケイ
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Abstract
This research aims to clarify the relationship between image properties of aerial photograph and structural factors of Castanopsis cuspidata coppice woodland and Chamaechiparis obutusa artificial forest, and to develop an algorithm of tree crown analysis using the images. The aerial photographs were taken in May, 1999, the season of flowering Castanopsis cuspidata, and converted to monochrome 45cm ground resolution digital images. Fourteen plots were chosen in the field to measure vegetation and forest structure. Correlations were analyzed between image properties such as SD (standard deviation) and CF (cumulative frequency of tree crown edge) and forest structural factors such as tree crown area, tree density, relative illuminance under tree crown, etc. As a result of only Chamaechiparis obutusa artificial forest, a -0.79 correlation between SD and CF was obtained. Also, a 0.79 correlation between SD and the relative illuminance under tree crowns was found. Furthermore, in terms of CF, a 0.72 (tree crown area) and a -0.82 (tree density) correlation was found. The results suggested that these images contained the information of the tree crown.
Journal
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- Journal of The Japanese Institute of Landscape Architecture
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Journal of The Japanese Institute of Landscape Architecture 70 (5), 733-736, 2007
Japanese Institute of Landscape Architecture
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Details 詳細情報について
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- CRID
- 1390001205669670400
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- NII Article ID
- 110006655704
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- NII Book ID
- AN10455955
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- ISSN
- 13484559
- 13408984
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- NDL BIB ID
- 8820426
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed