Automatic detection of standing dead trees based on improved YOLOv7 from airborne remote sensing imagery [PDF]
Frontiers in Plant ScienceDetecting 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 +6 more sources
Dead standing pine trees in a boreal forest landscape in the Kalevala National Park, northern Fennoscandia: amount, population characteristics and spatial pattern [PDF]
Forest 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
Occurrence of termites (Isoptera) on living and standing dead trees in a tropical dry forest in Mexico [PDF]
PeerJ, 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 +5 more sources
Accounting for density reduction and structural loss in standing dead trees: Implications for forest biomass and carbon stock estimates in the United States [PDF]
Carbon Balance and Management, 2011 Background Standing dead trees are one component of forest ecosystem dead wood carbon (C) pools, whose national stock is estimated by the U.S. as required by the United Nations Framework Convention on Climate Change.
Domke Grant M +2 more
doaj +4 more sources
Instance segmentation of standing dead trees in dense forest from aerial imagery using deep learning
ISPRS 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 +6 more sources
Postfire dynamics of standing dead tree stock in northern boreal forests [PDF]
BIO 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
Precipitation and wood type determines stem and soil greenhouse gas fluxes in a subtropical forest [PDF]
Frontiers in Plant ScienceResearch on greenhouse gas (GHG) fluxes has predominantly focused on subtropical soils, with far less attention given to emissions from tree stems. In particular, year-long simultaneous measurements of both soil and tree stem fluxes in these forests are ...
Guanghui Yang +7 more
doaj +2 more sources
Small Gap Dynamics in High Mountain Central European Spruce Forests—The Role of Standing Dead Trees in Gap Formation [PDF]
PlantsGap dynamics are driving many important processes in the development of temperate forest ecosystems. What remains largely unknown is how often the regeneration processes initialized by endogenous mortality of dominant and co-dominant canopy trees take ...
Denisa Sedmáková +8 more
doaj +2 more sources
Remote 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 +3 more sources
Non-negligible role of dead organic matter in a rainforest remnant in Northeast Brazil [PDF]
Rodriguésia, 2022 Dead organic matter represents an essential reservoir of carbon, especially that allocated in standing dead trees, coarse woody debris, and fine litter, playing a pivotal role in nutrient cycling and habitat provisioning. However, necromass is frequently
Pedro Henrique Albuquerque Sena +2 more
doaj +1 more source