Results 1 to 10 of about 29,854 (219)

Classification of Tree Species as Well as Standing Dead Trees Using Triple Wavelength ALS in a Temperate Forest [PDF]

open access: yesRemote Sensing, 2019
Knowledge about forest structures, particularly of deadwood, is fundamental for understanding, protecting, and conserving forest biodiversity. While individual tree-based approaches using single wavelength airborne laserscanning (ALS) can successfully ...
Nina Amiri   +3 more
doaj   +6 more sources

Temperature and Tree Size Explain the Mean Time to Fall of Dead Standing Trees across Large Scales [PDF]

open access: yesForests, 2023
Dead standing trees (DSTs) generally decompose slower than wood in contact with the forest floor. In many regions, DSTs are being created at an increasing rate due to accelerating tree mortality caused by climate change.
Daniel Metcalfe   +2 more
exaly   +5 more sources

Occurrence of termites (Isoptera) on living and standing dead trees in a tropical dry forest in Mexico [PDF]

open access: yesPeerJ, 2018
Termites play a key role as ecosystem engineers in numerous ecological processes though their role in the dynamics of wood degradation in tropical dry forests, particularly at the level of the crown canopy, has been little studied.
Nancy Calderón-Cortés   +2 more
doaj   +6 more sources

Instance segmentation of standing dead trees in dense forest from aerial imagery using deep learning

open access: yesISPRS Open Journal of Photogrammetry and Remote Sensing, 2022
Mapping standing dead trees, especially, in natural forests is very important for evaluation of the forest's health status, and its capability for storing Carbon, and the conservation of biodiversity.
Abubakar Sani-Mohammed   +2 more
doaj   +4 more sources

Identifying Sources and Oxidation of Methane in Standing Dead Trees in Freshwater Forested Wetlands [PDF]

open access: yesFrontiers in Environmental Science, 2022
Wetlands are large sources of methane (CH4), therefore it is vital to understand the pathways, mechanisms, and sources to anticipate future positive feedbacks to climate change. Plant mediated transport of CH4 from sediment-borne gases is thought to be a
Melinda Martinez   +2 more
doaj   +3 more sources

Detection of Standing Dead Trees after Pine Wilt Disease Outbreak with Airborne Remote Sensing Imagery by Multi-Scale Spatial Attention Deep Learning and Gaussian Kernel Approach

open access: yesRemote Sensing, 2022
The continuous and extensive pinewood nematode disease has seriously threatened the sustainable development of forestry in China. At present, many studies have used high-resolution remote sensing images combined with a deep semantic segmentation ...
Zemin Han   +7 more
doaj   +4 more sources

Dead standing pine trees in a boreal forest landscape in the Kalevala National Park, northern Fennoscandia: amount, population characteristics and spatial pattern

open access: yesForest Ecosystems, 2017
Background After their death, Scots pine trees can remain standing for decades and sometimes up to 200 years, forming long-lasting and ecologically important structures in boreal forest landscapes.
Timo Kuuluvainen   +2 more
doaj   +5 more sources

Silvi-Net – A dual-CNN approach for combined classification of tree species and standing dead trees from remote sensing data

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2021
Forest managers and nature conservationists rely on precise mapping of single trees from remote sensing data for efficient estimation of forest attributes.
Sebastian Briechle, George Vosselman
exaly   +5 more sources

Automatic detection of standing dead trees based on improved YOLOv7 from airborne remote sensing imagery

open access: yesFrontiers in Plant Science
Detecting and localizing standing dead trees (SDTs) is crucial for effective forest management and conservation. Due to challenges posed by mountainous terrain and road conditions, conducting a swift and comprehensive survey of SDTs through traditional ...
Hongwei Zhou   +3 more
doaj   +4 more sources

Postfire dynamics of standing dead tree stock in northern boreal forests [PDF]

open access: yesBIO Web of Conferences, 2022
Wildfire is one of the main forest disturbing factors in the boreal zone of Siberia that can cause significant changes in tree stands dynamics. Tree mortality caused by fire can significantly increase a standing dead tree pool that is one of the poorly ...
Mukhortova Liudmila   +2 more
doaj   +4 more sources

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