Results 41 to 50 of about 308,155 (151)

Nitrogen Turnover in Swedish Spruce Forest Ecosystems [PDF]

open access: yes, 2002
Nitrate leaching from growing forests is not yet a widespread problem in Sweden, but nitrogen (N) deposition and high N retention in the soil during recent decades might have changed forest ecosystems towards N saturation.
Andersson, Pål
core   +1 more source

Artificially induced drought stress affects seasonal foliar litterfall, nutrient contents, and nutrient masses in mature European beech (Fagus sylvatica [L.]) and Norway spruce (Picea abies [L.] Karst.)

open access: yesTrees, Forests and People
We examined the effects of drought-induced stress on foliar litter production, nutrient contents, and nutrient masses in mature European beech (Fagus sylvatica [L.]) and Norway spruce (Picea abies [L.] Karst.) over a two-year period (October 2015 ...
Matthias Ulbricht   +6 more
doaj   +1 more source

North European platyphyllous forests: biodiversity dynamics and climate changes in northwest European Russia.

open access: yesSilva Fennica, 1996
Distribution, biodiversity and reforestation dynamics of the platyphyllous forests in the Northwest European Russia were investigated. Data assembled from 21 landscape regions (250–350 km each) show special features of small-leaved lime ( Mill., Norway
Chtchoukine, Anton
doaj   +1 more source

Outbreaks of European spruce bark beetle dramatically altered Norway spruce-dominated stands with implications for volant wildlife in the Białowieża Forest, Poland

open access: yesAnnals of Forest Science
Key message An outbreak of the European spruce bark beetle (Ips typographus L.) in spruce (Picea abies L.) dominated forest stands in the Białowieża Forest, Poland, has led to fundamental changes in forest characteristics.
Andrew Carr   +3 more
doaj   +1 more source

A common fungal associate of the spruce bark beetle metabolizes the stilbene defenses of Norway spruce [PDF]

open access: yes, 2013
Norway spruce (Picea abies) forests suffer periodic fatal attacks by the bark beetle Ips typographus and its fungal associate, Ceratocystis polonica. Norway spruce protects itself against fungal and bark beetle invasion by the production of terpenoid ...
Wright, Louwrance P.   +8 more
core   +1 more source

Dead wood retention and the risk of bark beetle attack [PDF]

open access: yes, 2002
Wind-felled Norway spruce trees left for conservation purposes and spruce stems stored as forest fuel may be colonised by the bark beetles Ips typographus and Pityogenes chalcographus (Coleoptera: Scolytidae).
Hedgren, Per Olof
core   +1 more source

Norway spruce in the Right Bank Forest-Steppe of Ukraine: perspectives of use and improvement of reproduction methods

open access: yesНаукові праці Лісівничої академії наук України, 2018
Today, in Ukraine and abroad, the drying up of Norway spruce trees in forest plantations of different purpose has become a serious problem. Considering the important economic and social significance of spruce, studies of its condition, growth and ...
Yaroslav Fuchylo, Olexandr Serediuk
doaj   +1 more source

Response of mature Norway spruce (Picea abies) to elevated atmospheric CO² [PDF]

open access: yes, 2014
The aim of this thesis was to identify pathways and rates of C allocation in tall forest trees, and to identify effects of elevated CO2 on respiratory processes and root growth.
Mildner, Manuel
core   +1 more source

Heart rot of spruce and alder in forests of Latvia [PDF]

open access: yes, 2012
Heart rot causes great decrease in timber quality throughout the world. In the conifer forests of Northern Hemisphere the most significant losses are caused by fungi from the Heterobasidion annosum species complex. The spread of the disease is favored by
Arhipova, Natalija
core   +1 more source

Flavanone-3-Hydroxylase Plays an Important Role in the Biosynthesis of Spruce Phenolic Defenses Against Bark Beetles and Their Fungal Associates

open access: yesFrontiers in Plant Science, 2019
Conifer forests worldwide are becoming increasingly vulnerable to attacks by bark beetles and their fungal associates due to the effects of global warming.
Almuth Hammerbacher   +5 more
doaj   +1 more source

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