Results 71 to 80 of about 72,539 (264)

Uncertainty of Forest Biomass Estimates in North Temperate Forests Due to Allometry: Implications for Remote Sensing [PDF]

, 2013
Estimates of above ground biomass density in forests are crucial for refining global climate models and understanding climate change. Although data from field studies can be aggregated to estimate carbon stocks on global scales, the sparsity of such ...
Ahmed, Anthes, Atjay, Avery, Baskerville, Blackard, Buonaccorsi, Chave, Crow, Crow, DeFries, Fisher, Freedman, Frieswyk, Gertner, Hall, Hocker, Honer, Jenkins, Jenkins, Jokela, Kathleen Bergen, Ker, Ker, Kindermann, Lambert, Mandelbrot, Niklas, Osawa, Parresol, Pastor, Pastor, Paul Siqueira, Perala, Phillips, Razi Ahmed, Rosenqvist, Schmitt, Scott Hensley, Smith, Stout, Ter-Mikaelian, Toan, Tritton, West, Whittaker, Wiant, Young, Zeide   +48 more
core   +3 more sources

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

Comparative leaf anatomy of some species of Abies and Picea (Pinaceae)

Acta Botânica Brasílica, 2015
A number of conifer species are still lacking anatomical data, which is significant because morphological and anatomical data are essential for systematic study.
Balkrishna Ghimire, Chunghee Lee, Jongcheol Yang, Kweon Heo   +3 more
doaj   +1 more source

A Comprehensive Emission Inventory of Bbiogenic Volatile Organic Compounds in Europe: Improved Seasonality and Land-cover [PDF]

, 2013
Biogenic volatile organic compounds (BVOC) emitted from vegetation are important for the formation of secondary pollutants such as ozone and secondary organic aerosols (SOA) in the atmosphere.
Aksoyoglu, S., Barmpadimos, I., Keller, J., Lund University., Oderbolz, D. C., Plass-Duelmer, C., Prevot, A. S. H., Skjoth, Carsten,, Steinbrecher, R.   +8 more
core   +3 more sources

Monitoring GPS‐collared moose by ground versus drone approaches: efficiency and disturbance effects

Wildlife Biology, EarlyView.
Efficient wildlife management requires precise monitoring methods, for example to estimate population density, reproductive success, and survival. Here, we compared the efficiency of drone (equipped with a RGB camera) and ground approaches to detect and observe GPS‐collared female moose Alces alces and their calves. We also quantified how drone (n = 42)
Martin Mayer, Erlend Furuhovde, Kristoffer Nordli, Giorgia Myriam Ausilio, Petter Wabakken, Ane Eriksen, Alina L. Evans, Karen Marie Mathisen, Barbara Zimmermann   +8 more
wiley   +1 more source

The distribution of individuals of intermediate form in the populations of Norway and Siberian spruces [PDF]

Сибирский лесной журнал, 2018
The distribution of individuals of the intermediate form of Norway spruce Picea abies (L.) H. Karst., and Siberian spruce P. obovata Ledeb., distinguished according to the metric parameters of the seed scales, was studied in extensive areas of the ...
P. P. Popov
doaj   +1 more source

A study of the traits associated with the biocontrol activity of Phlebiopsis gigantea [PDF]

, 2009
Phlebiopsis gigantea has routinely been used for the biocontrol of the conifer pathogen, Heterobasidion annosum s.l. but the mechanism for the biocontrol action has not been properly understood. In the present work, 64 isolates of P.
Mgbeahuruike, Anthony Christian
core  

Benefit or ecological trap? Monitoring the effects of small clear‐cuts on capercaillie Tetrao urogallus and its mammalian predators

Wildlife Biology, EarlyView.
The shift to ‘close to nature forestry' as the dominating forestry regime in western‐European forests has resulted in increasing timber volume and denser forests with negative effects on photophilic species. Hence, there is an increasing focus on active habitat management measures to support these species.
Maria Kochs, Joy Coppes, Tanja Beutel, Gabriel Holz, Jim‐Lino Kämmerle, Michael Kraft, Veronika Braunisch   +6 more
wiley   +1 more source

First record of the fungus Setomelanomma holmii (Pleosporales, Phaeosphaeriaceae) on Picea abies in Bulgaria

Historia Naturalis Bulgarica
Spruce needle drop disease of Norway spruce (Picea abies) associated with a fungal pathogen Setomelanomma holmii (Pleosporales, Phaeosphaeriaceae) was established for the first time in Bulgaria in 2023.
Maria Dobreva, Margarita Georgieva, Pencho Dermendzhiev, Vasil Velinov, Rumen Nachev, Georgi Georgiev   +5 more
doaj   +1 more source

Pre-harvest soil acidification, liming or N fertilization did not significantly affect the survival and growth of young Norway spruce

Silva Fennica, 2005
Acidification, liming, and N fertilization affect a number of soil properties. Such changes may have an impact on forest regeneration and yield. The aim of this study was to investigate the survival and growth of Picea abies (L.) Karst.
Sikström, Ulf
doaj   +1 more source