Results 11 to 20 of about 232,366 (358)

A comparison of three canopy interception models for a leafless mixed deciduous forest stand in the eastern United States [PDF]

open access: yes, 2007
Canopy interception of incident precipitation is a critical component of the forest water balance during each of the four seasons. Models have been developed to predict precipitation interception from standard meteorological variables because of ...
Frost, Ethan E.   +2 more
core   +1 more source

PSOOptimizedFast Segmentation Algorithm for 3D Otsu Forest Canopy Image

open access: yesJournal of Harbin University of Science and Technology, 2019
Forest canopy image segmentation is a key step to forest canopy parameters using digital image processing methods According to the characteristics of forest canopy fisheye images with complex background and high resolution, this paper proposed a PSO ...
ZHU Liang-kuan   +3 more
doaj   +1 more source

Forest canopy analysis in the Alpine environment: comparison among assessment methods

open access: yesForest@, 2013
Forest canopy analysis in the Alpine environment: comparison among assessment methods. Forest canopy is an important ecological feature of forest stands and can be expressed as Leaf Area Index (LAI) or canopy cover percentage.
Pastorella F, Paletto A
doaj   +1 more source

Parallel functional and stoichiometric trait shifts in South American and African forest communities with elevation [PDF]

open access: yes, 2017
The Amazon and Congo basins are the two largest continuous blocks of tropical forest with a central role for global biogeochemical cycles and ecology. However, both biomes differ in structure and species richness and composition.
C. Taveirne   +8 more
core   +3 more sources

Understanding opportunities for urban forest expansion to inform goals: Working toward a virtuous cycle in New York City

open access: yesFrontiers in Sustainable Cities, 2022
Urban forests are critical infrastructure for mitigating environmental and social challenges cities face. Municipalities and non-governmental entities, among others, often set goals (e.g., tree planting or canopy targets) to support urban forests and ...
Michael L. Treglia   +4 more
doaj   +1 more source

Vertical stratification of selected Hymenoptera in a remnant forest of the Po Plain (Italy, Lombardy) (Hymenoptera: Ampulicidae, Crabronidae, Sphecidae) [PDF]

open access: yes, 2017
Communities of the canopy of temperate forests are still relatively unexplored. Furthermore, very little is known on how vertical stratification for some insect groups is related to biological strategies.
Cerretti, Pierfilippo   +2 more
core   +4 more sources

Phylogenetic Structure of Tree Species across Different Life Stages from Seedlings to Canopy Trees in a Subtropical Evergreen Broad-Leaved Forest.

open access: yesPLoS ONE, 2015
Investigating patterns of phylogenetic structure across different life stages of tree species in forests is crucial to understanding forest community assembly, and investigating forest gap influence on the phylogenetic structure of forest regeneration is
Yi Jin, Hong Qian, Mingjian Yu
doaj   +1 more source

Estimating Forest Canopy Height Using MODIS BRDF Data Emphasizing Typical-Angle Reflectances

open access: yesRemote Sensing, 2019
Forest-canopy height is an important parameter for the estimation of forest biomass and terrestrial carbon flux and climate-change research at regional and global scales.
Lei Cui   +9 more
doaj   +1 more source

Comparison of forest attributes derived from two terrestrial lidar systems. [PDF]

open access: yes, 2013
Terrestrial lidar (TLS) is an emerging technology for deriving forest attributes, including conventional inventory and canopy characterizations. However, little is known about the influence of scanner specifications on derived forest parameters.
Astrup, Rasmus   +5 more
core   +2 more sources

Influence of voxel size on forest canopy height estimates using full-waveform airborne LiDAR data

open access: yesForest Ecosystems, 2020
Background Forest canopy height is a key forest structure parameter. Precisely estimating forest canopy height is vital to improve forest management and ecological modelling.
Cheng Wang   +5 more
doaj   +1 more source

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