Results 41 to 50 of about 308,155 (151)
Nitrogen Turnover in Swedish Spruce Forest Ecosystems [PDF]
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
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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
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Distribution, biodiversity and reforestation dynamics of the platyphyllous forests in the Northwest European Russia were investigated. Data assembled from 21 landscape regions (250â350 km each) show special features of small-leaved lime ( Mill., Norway
Chtchoukine, Anton
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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
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A common fungal associate of the spruce bark beetle metabolizes the stilbene defenses of Norway spruce [PDF]
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
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Dead wood retention and the risk of bark beetle attack [PDF]
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
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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
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Response of mature Norway spruce (Picea abies) to elevated atmospheric CO² [PDF]
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
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Heart rot of spruce and alder in forests of Latvia [PDF]
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
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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
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