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Comparison of different non-linear models for prediction of the relationship between diameter and height of velvet maple trees in natural forests (Case study: Asalem Forests, Iran)
height-diameter model Acer velutinum north of Iran
2016/3/2
Velvet maple (Acer velutinum) is one of the woody species in the Hyrcanian forests. In this study, the relationship between height and diameter of velvet maple was surveyed. A complete list of the sel...
Foliage and fine roots in terms of growth efficiency – a comparison between European beech and Norway spruce at early growth stages
allometric equations fine root morphology leaf area stem diameter stem mass production interspecies differences
2015/4/24
The quantification of stems (under- and overbark), foliage and fine roots in 14-year-old stands of European beech and Norway spruce grown on the same site were evaluated. Therefore, 60 trees of each s...
Comparison of the growth pattern of black walnut (Juglans nigra L.) in two riparian forests in the region of South Moravia, Czech Republic
growth Juglans nigra riparian forest South Moravia
2015/3/27
The black walnut (Juglans nigra L.), an introduced species into the Czech Republic, is planted for its production of valuable timber. A systematic study of the black walnut growth rate at different lo...
Comparison of the root system architecture between windthrown and undamaged spruces growing in poorly drained sites
Norway spruce stability root system windthrow
2015/3/12
In the locality Hnilé Blatá (High Tatras Mts.) the parameters of root plates and the number, length and diameter of the individual root branches in windthrows and standing Norway spruces (Picea abies ...
Laminated Panel Manufacture of Two Kinds of Bamboo for Architecture Material and Property Comparison
Laminated Panel Manufacture Bamboo Architecture Material
2014/5/6
The manufacture technologies of two kinds of bamboo laminated panel and their physical-mechanical properties have been studied in this paper. The species of bamboo are the D. yunnanicus hsueh produced...
Laminated Panel Manufacture of Two Kinds of Bamboo for Architecture Material and Property Comparison
Bamboo for Architecture Material Property Comparison
2014/5/6
China and India have 14 million hectares under bamboo and produce more than 8 million culms of bamboo annually. In search of economic efficiency, China has undergone considerable land tenure, social o...
Bending Strength of Guadua Bamboo - Comparison of Different Testing Procedure
Guadua Bamboo Testing Procedure
2014/5/7
For bamboo to be used as an engineering material in structural applications, strength data have to be generated. Although many commonly used bamboos in different countries have been evaluated for stre...
Plasticity of Root Morphology of Pterocarya rhoifolia Seedlings in Relation to the Soil Substrates:Comparison with Carpinus laxiflora and Carpinus tschonoskii
acclimation current-year seedlings lateral root length riparian component species soil substrate
2009/8/24
We aimed to clarify 1) whether the roots of current-year seedlings of riparian component species have developed acclimation to soil substrate particularly in the riparian zone, and 2) if the acclimati...
A Comparison of in situ Leaf Photosynthesis and Chlorophyll Fluorescence at the Top Canopies in Rainforest Mature Trees
Dipterocarpus cornutus Macaranga gigantea photosynthetic nitrogen use efficiency specific leaf area uppermost canopy
2009/6/10
The top canopy leaves of mature trees are exposed to high solar radiation, regardless of whether they are climax or pioneer trees. We compared leaf physiology and morphology at the top canopies of a c...
Modelling Stand Damages and Comparison of Two Harvesting Methods
stand damage harvesting technology motor-manual cut-to-length
2009/2/7
This paper deals with the problem of tree damage in a remaining stand. Two models were
used for assessment of stand damage over the entire production period. Damage accumulates
on the trees and in...