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Assessment of Ponderosa Pine Vigor Using Four-Band Aerial Imagery in South Central Oregon: Crown Objects to Landscapes
tree vigor ponderosa pine remote sensing aerial imagery dry pine forest fuel treatments forest restoration
2023/12/6
Ponderosa pine is an integral part of the forested landscape in the western US; it is the dominant tree species on landscapes that provide critical ecosystem services. Moderate drought tolerance allow...
Unmanned?aerial?vehicles (UAV)-based canopy height modeling under leaf-on and leaf-off conditions for determining tree height and crown diameter (case study: Hyrcanian mixed?forest)
canopy height model digital elevation model forest inventory unmanned aerial vehicles (UAVs) tree crown architecture
2023/12/1
Tree height and crown diameter are two common individual tree attributes that can be estimated from unmanned aerial vehicle (UAV) images thanks to photogrammetry and structure from motion. This resear...
Using Tree Height, Crown Area and Stand-Level Parameters to Estimate Tree Diameter, Volume, and Biomass of Pinus radiata, Eucalyptus globulus and Eucalyptus nitens
radiata pine blue gum shinning gum diameter-height allometry crown diameter stem volume above-ground biomass growth and yield modeling remote sensing
2023/11/22
Accurate estimates of tree diameter, height, volume, and biomass are important for numerous economic and ecological applications. In this study, we report exponential equations to predict tree DBH (cm...
Yield and crown structure characteristics in a black locust (Robinia pseudoacacia L.) stand: A case study – Short Communication
forest regeneration crown indices crop tree selection volume production non-native tree species
2018/3/6
The paper provides the results of a detailed analysis of timber volume and the most important crown variables of black
locust (Robinia pseudoacacia Linnaeus) based on an experimental plot in southern...
Activity of Metalaxyl-M+mancozeb, Fosetyl-Al, and Phosphorous Acid against Phytophthora Crown and Root Rot of Apricot and Cherry Caused by Phytophthora palmivora
Prunus armeniaca Prunus avium rootstock agrochemicals greenhouse field
2018/3/5
Crown and root rot, caused by the Oomycete pathogen Phytophthora palmivora, has become a destructive disease of
apricot and cherry in eastern Turkey. There are no currently registered fungicides labe...
Crown development of beech crop trees under different thinning regimes
target trees crown parameters Fagus sylvatica Linnaeus tending
2017/6/26
Crop trees are the main bearers of qualitative and value production of the stands. Although the number and production of the mentioned trees are affected by various factors, crown development by means...
Variability in leaf and crown morphology correlated with light availability in five natural populations of Quercus castaneifolia C.A. Mey
plasticity Hyrcanian forest controlled conditions leaf mass leaf area leaf area ratio
2018/3/6
In this study, we investigate seedlings of Quercus castaneifolia C.A. Mey, from five different provenances for the research
on leaf and crown morphological variations in relation to a light gradient ...
Tree health influences diameter growth along site quality, crown class and age gradients in Nothofagus forests of southern Patagonia
Nothofagus pumilio annual diameter increment
2015/4/24
We examined the influence of tree health on annual diameter increment of trees along gradients in stand site quality, crown classes and tree age in Nothofagus pumilio forests of Southern Patagonia. He...
Patterns and Severity of Crown Dieback in Young Even-Aged Stands of European Ash (Fraxinus excelsior L.) in Relation to Stand Density, Bud Flushing Phenotype, and Season
Hymenoscyphus pseudoalbidus crown damage
2015/3/10
The extent and temporal pattern of crown damage (attributed to Hymenoscyphus pseudoalbidus) in even-aged stands of
Fraxinus excelsior in relation to bud flushing phenotype, stand density, and season...
Improving RBS estimates − effects of the auxiliary variable, stratification of the crown, and deletion of segments on the precision of estimates
randomized branch sampling multistage sampling unequal selection probabilities
2015/3/6
Randomized Branch Sampling (RBS) is a multistage sampling procedure using natural branching in order to select samples for the estimation of tree characteristics. The existing variants of the RBS meth...
Diversity of Oat Crown Rust (Puccinia coronata f.sp. avenae) Isolates Detected by Virulence and AFLP Analyses
Puccinia coronata f.sp. avenae oat crown rust
2015/3/5
Forty Puccinia coronata f.sp. avenae isolates from several European countries and Israel were tested for virulence
to 18 differential oat lines. Amplified Fragment Length Polymorphism (AFLP) analysi...
Modifying the elastomechanics of the stem and the crown needle mass distribution to affect the diameter increment distribution: A field experiment on 20-year old Abies grandis trees
Abies grandis elastomechanics field experiment stress strain diameter increment distribution
2015/2/2
In the spring of 2000, field experiments were begun on three 20-year old grand fir (Abies grandis) to influence the elasto-mechanical behavior of the stem, as well as the distribution of the assimilat...
Larch crown diseases in Trentino and South Tyrol
Larix decidua Mycosphaerella laricina Meria laricis Hypodermella laricis Lachnellula wilkommii
2015/2/2
Various attacks of pathogenic fungi on the larch crown were observed in Trentino/South Tyrol, Italy, over the past few years. In 1999, severe defoliation was caused by Mycosphaerella laricina, a rarel...
Ecological aspects of dispersion of gall mites in the vertical profile of the birch crown
Acalitus rudis Phyllocoptes lionotus tree crown dispersion ecology
2015/2/2
In stands of birch Betula pendula Roth in the eastern Krušné hory Mts. the occurrence of the gall mites Acalitus rudis Canestrini and Phyllocoptes lionotus Nalepa was studied in terms of their di...
First report of Fusarium commune and Fusarium redolens causing crown and root rot on tomato in Algeria
Fusarium oxysporum Algeria
2014/11/25
Tomato (Solanum lycopersicum) is a common crop in Algeria. From 2006 to 2008, surveys were conducted in the tomato-growing areas of Algeria around Alger and Oran where diseased plants were found with ...