Tree density, stem diameter.and basal area
Impact of logging intensity on stem density, basal area and biodiversity indices five years after logging in a Caspian hardwood forest
... threshold stem diameter with prescriptions de- signed to maintain the forest cover, is considered to be a better practice compared with clear-cutting and it is increasingly embraced as an approach to ...
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Long term response of understorey cover, basal area and diversity to stand density in a mixed oak forest on the Síkfőkút plot in Hungary
... py tree density led to the remarkably increasing cover of the shrub ...stand density resulted in a significant increase in the understorey bas- al ...and basal area of dominant woody ...
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The accuracy of traditional dendrometrics when estimating diameter at breastheight and basal area of tree stems, in regard to the non-circularity of tree stem
... Både Matèrn (1990) og Pulkinnen (2012) har gjort lignende studier om sirkulæritet på trestammer og hvilke målemetoder som egner seg best for å estimere stammens brysthøydediameter og grunnflateareal. I begge studiene var ...
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Tree stem diameter estimation from terrestrial point clouds
... On the useful field plots, 76% of the trees could be found and positioned, and on 40% the diameters could be estimated. The second article is about mobile laser scanning. Laser data were collected in a previous project ...
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Estimating Individual Tree Diameter and Stem Volume Using Airborne LiDAR in Saga Prefecture, Japan
... surface area and crown ...crown area alone was used as an explanatory variable, and formulae 7 and 8, where crown length and crown length ratio were added to crown area, as shown in Table 3 and Table ...
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Adaptive k-tree sample plot for the estimation of stem density: An empirical approach
... of stem density: An empirical ...fixed area plots. Here, a modification of a k-tree sample plot with an empirical approach to estimating the number of trees per unit area in ...
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Detection of Basal Stem Rot (BSR) Infected Oil Palm Tree Using Laser Scanning Data
... (a) area and (b) perimeter. 3.1.2. Area of trunk section The average area of each level of healthiness decreases with increasing trunk section as indicated in ...between area of trunk section ...
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Individual tree basal area growth models for Chir pine Pinus roxberghii Sarg.) in western Nepal
... individual tree basal area growth models: age dependent and age independent, were developed for Chir pine for one of the western dis- tricts, Rukum district, in ...bark diameter at ...possible ...
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Comparison of methods for estimation of stem volume, stem number and basal area from airborne laser scanning data in a hemi-boreal forest
... of stem volume for large areas. The stem volume used as ground truth was estimated with regression models with a comparatively high RMSE, which was around 20% for most of the ...80% basal area ...
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Comparison of methods for estimation of stem volume, stem number and basal area from airborne laser scanning data in a hemi-boreal forest
... of stem volume for large areas. The stem volume used as ground truth was estimated with regression models with a comparatively high RMSE, which was around 20% for most of the ...80% basal area ...
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Assessing the Accuracy of Tree Diameter Measurements Collected at a Distance
... of tree and understory vegetation, bark color, stem density, and forest type in general that could cause error and affect the ability to distinguish bark edges with a high level of ...in tree ...
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Predicting Live and Dead Tree Basal Area in Bark Beetle-Affected Forests from Discrete-Return LiDAR
... intensity, density, and topographic metrics explained more variance in Live BA than Dead BA, and usually the most variance in Total BA, which we conclude is due to the greater sensitivity of LiDAR to needled trees ...
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Distance-independent tree basal area growth models for Norway spruce, Douglas-fir and Japanese larch in Southern Belgium
... The fitting of the new formulations easily met the con- vergence criteria for all three species and provided parameters estimates that were at least significant to the 0.05 level (Table 5). Compared to the original, the ...
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Deriving Tree Crown Distributions from Diameter at Breast Height
... between tree crown diameter and diameter at breast height of Parkia ...derived tree crown distribution was comparable to the actual crown distribution of the ...the diameter ...
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A link between hurricane-induced tree sprouting, high stem density and short canopy in tropical dry forest
... the stem base as a result of the sustained displacement from the vertical (Telewski and Jaffe 1986) by hurricane winds or by root breakage (Ernesto Medina, Instituto Venezolano de Investigaciones Científicas, ...
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Minimum Diameter Spanning Tree
... spanning tree is a subset of a graph G , which has all the vertices covered with minimum possible number of edges, hence a spanning tree doesn’t have a cycle and it can’t be ...spanning tree of a ...
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An Examination of Diameter Density Prediction with
... Keywords: lidar; forest inventory; k-NN; dbh; diameter distribution; performance criteria; index; indices 19... 1 Introduction.[r] ...
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Exploiting tree shadows on snow for estimating forest basal area using Landsat data
... change in sun elevation angle between these dates, it is reasonable to suggest that these shaded-relief variables help to resolve differences in tree shadow-fraction that vary as functions both BA and shadow dis- ...
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Domination on Minimum Diameter Spanning Tree
... minimum diameter spanning tree for grid graph and complete graph, further discuss the simple connected graphs and above which have a minimum diameter spanning tree such that both have same ...
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Spatial continuity in tree diameter distribution
... the tree diameter distribution under study is a regionalized ...of tree diameter distribution may be modelled and used for estimation ...
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