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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...
CROWN-LEVEL TREE SPECIES CLASSIFICATION USING INTEGRATED AIRBORNE HYPERSPECTRAL AND LIDAR REMOTE SENSING DATA
Tree species classification Crown-scale spectral Crown-scale structure LiDAR Hyperspectral
2018/5/17
Mapping tree species is essential for sustainable planning as well as to improve our understanding of the role of different trees as different ecological service. However, crown-level tree species aut...
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 ...
FULLY AUTOMATED GIS-BASED INDIVIDUAL TREE CROWN DELINEATION BASED ON CURVATURE VALUES FROM A LIDAR DERIVED CANOPY HEIGHT MODEL IN A CONIFEROUS PLANTATION
Crown Delineation Canopy Height Model (CHM) Local Maxima Curvature Slope Thiessen Polygons
2016/11/30
The generation of high resolution canopy height model (CHM) from LiDAR makes it possible to delineate individual tree crown by means of a fully-automated method using the CHM’s curvature through its s...
ACCURACY ASSESSMENT OF CROWN DELINEATION METHODS FOR THE INDIVIDUAL TREES USING LIDAR DATA
Forest Canopy LiDAR Pit-free Stand-level
2016/11/30
Forest canopy density and height are used as variables in a number of environmental applications, including the estimation of biomass, forest extent and condition, and biodiversity. The airborne Light...
AUTOMATIC TREE-CROWN DETECTION IN CHALLENGING SCENARIOS
3D-modeling Classification Hotspots detection Surface reconstruction Tree Watershed Transformation
2016/7/27
In this paper, a new procedure for individual tree detection and modeling is presented. The input of this procedure consists of a normalized digital surface model NDSM, and a possibly error-prone clas...
TREE CROWN DELINEATION FROM HIGH RESOLUTION AIRBORNE LIDAR BASED ON DENSITIES OF HIGH POINTS
Tree detection tree crown delineation density of high points (DHP) canopy height model (CHM)
2016/2/29
Tree detection and tree crown delineation from Airborne LiDAR has been focusing mostly on utilizing the canopy height model
(CHM). This paper presents a method for individual tree crown delineation ...
Comparison of Different Image Fusion Techniques for Individual Tree Crown Identification using QUICKBIRD Images
Forestry Image fusion QuickBird High resolution Individual tree crown Zagros
2016/1/25
With the advent of a new generation of high resolution satellites, images are now available with less than 1 meter spatial resolution in
panchromatic mode. For successful individual tree crown ident...
CHANGE DETECTION OF FOREST CROWN CLOSURE USING AN INVERTED GEOMETRIC-OPTICAL MODEL AND SCALING
Change detection Forest crown closure Geometric-optical model Scaling MODIS Three Gorges region
2015/12/30
The physical based Li-Strahler geometric-optical model can be inverted to retrieve forest canopy structural variables. One of the main input variables of the inverted model is the fractional component...
ACCURACY OF CROWN SEGMENTATION AND ESTIMATION OF SELECTED TREES AND FOREST STAND PARAMETERS IN ORDER TO RESOLUTION OF USED DSM AND NDSM MODELS GENERATED FROM DENSE SMALL FOOTPRINT LIDAR DATA
Airborne Scanner System Segmentation Aerial photogrammetry Comparative analysis Forestry
2015/12/23
The purpose of this study is to categorize how different surface model resolutions impact the estimation of trees and forest stands parameters: number of recognized trees, crown area, treetop location...