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Estimation of Root Biomass and Root Surface Area in a Broad-leaved Secondary Forest in the Southern Part of Kyoto Prefecture
allometric relationships broad-leaved secondary forest root biomass root diameter root surface area
2009/8/27
Root biomass and surface area were estimated using two methods in a broad-leaved secondary forest in southern part of Kyoto Prefecture. Root systems (n=6) were dug out as samples. Dry weights and diam...
Long-range Estimation of Standing Timber Stock in Western Boreal Forest of Canada Using Airborne Laser Altimetry
airborne laser altimetry boreal forest forest biomass forest volume vegetation profile
2009/8/27
A continuous vegetation profile covering a 600 km transect set up N-S across the boreal forest region of western Canada was obtained by airborne laser altimetry, along with ground-truth measurements o...
Long-range Estimation of Leaf Area Index Using Airborne Laser Altimetry in Siberian Boreal Forest
airborne laser altimetry leaf area index long-range estimation permafrost Siberian boreal forest
2009/8/27
Being the most extensively forested region of the world, the carbon budget of the Siberian boreal forest is one of the important subjects of global concern. This study was conducted to quantify leaf a...
Estimation of Spatial Variation of Soil CO2 Efflux from Tree Index
soil CO2 efflux spatial variation soil temperature soil moisture
2009/8/24
To measure spatial variation in soil CO2 efflux in a secondary beech forest in northern Japan, we took measurements five times over two years at 49 sampling points in a 35 m×35 m grid using a closed c...
Estimation of Forest Resource Conditions in Larix kaempferi Stand Combining High Resolution Digital Aerial Photography and DTM by LiDAR Data
digital aerial photograph high resolution Larix kaempferi remote sensing tree crown
2009/8/24
The purpose of this research was to develop high resolution digital aerial photography to estimate fundamental stand parameters (number of standing trees, mean tree height, stem volume) in a Larix kae...
A Defect Estimation Method within a Trunk Based on Wavelet Analysis by Diagnostic Slapping Sounds
trunk defect diagnosis wavelet analysis slapping sound
2009/8/24
It has been known that there is a relationship between wind-falls of trees and such defects as cavities or decays within their trunks. However, up to now, no such methods or devices have been develope...