NDLI: The extraction of canopy-understory vegetation-topography structure using helicopter-borne LIDAR measurement between a plantation and a broad-leaved forest

Content Provider	IEEE Xplore Digital Library
Author	Hirata, Y. Sato, K. Sakai, A. Kuramoto, S. Akiyama, Y.
Copyright Year	2003
Description	Author affiliation: Forestry & Forest Products Res. Inst., Shikoku Res. Center, Kochi, Japan (Hirata, Y.)
Abstract	The relationship between stratification of canopy layers, understory vegetation and topography was investigated using helicopter-borne laser scanner data. The study plot was established ranging from an evergreen broad-leaved forest to a plantation of hinoki cypress (Chamaecyparis obtuse). LIDAR measurement was conducted with high density of footprints (23.4 points/m/sup 2/) and both first pulse data and last pulse data were recorded. A local minimum filter was used to generate a digital elevation model (DEM). Adjoining spaces with 1 m wide along a certain direction in the stand were assumed and whole measurement data within every space were projected to a corresponding vertical plane to comprehend a canopy structure. It was found that through this processing that a series of vertical projective planes described stratification of canopy layers, gap structure, distribution of understory vegetation as well as topography.
Starting Page	3222
Ending Page	3224
File Size	1409405
Page Count	3
File Format	PDF
ISBN	0780379292
DOI	10.1109/IGARSS.2003.1294736
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-07-21
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vegetation Surfaces Laser radar Forestry Pulse measurements Sea measurements Filters Extraterrestrial measurements Remote sensing Sampling methods
Content Type	Text
Resource Type	Article

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