2024-03-29T06:00:04Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00016632
2023-01-18T02:45:47Z
1628:1629:1636
樹冠投影図における2 次スプライン曲線の表現力
Expressional Property of Quadratic Spline Curve for Crown Projection Diagram
荒瀬, 輝夫
岡野, 哲郎
内田, 泰三
田崎, 冬記
猫本, 健司
樹冠投影図
スプライン曲線
2次曲線
競合
Crownprojectiondiagram
Splinecurve
Quadraticcurve
Competition
In this study, we analyzed the expressional property of quadratic spline curve for contouring crown projection diagrams. We examined the changes in parameters and area in response to the knot movement and described crown projection diagrams using practical data obtained on trees. In comparison with an ellipse, the quadratic spline curve provided a depressed oval shape and slightly reduced the overlapping among adjacent crown projections. This property will be useful to express the competition in the canopy layer of forest.
Article
環境科学年報31:111-115(2009)
信州大学環境科学研究会
2009-03-31
jpn
research report
VoR
http://hdl.handle.net/10091/12160
https://soar-ir.repo.nii.ac.jp/records/16632
0915-7492
AN1054947X
環境科学年報
31
111
115
https://soar-ir.repo.nii.ac.jp/record/16632/files/12_Arase.pdf
application/pdf
136.0 kB
2015-09-28