Results 251 to 260 of about 267,599 (304)

Dielectric spectroscopy of Scots pine

Wood Science and Technology, 2009
Dielectric properties of Scots pine (42 trees) were compared with density, moisture content (MC), and resin acid content (RAC) (of heartwood). The samples were measured in frozen, green, conditioned and non-conditioned dry moisture states to evaluate the potential of dielectric spectroscopy in determining the wood characteristics at different stages of
Tomppo, L., Tiitta, M., Laakso, T., Harju, A., Venäläinen, M., Lappalainen, R.   +5 more
openaire   +1 more source

Silviculture of Scots pine in Belgium

Silva Gandavensis, 1998
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N. Lust, G. Geudens
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Scots pine (Pinus sylvestris L.) mortality is explained by the climatic suitability of both host tree and bark beetle populations

Forest Ecology and Management, 2019
Higher temperatures and extreme drought events are promoting insect-driven tree mortality. However, there is great uncertainty about the impact of extreme climatic variations on the susceptibility to infestation, as this depends on the suitability of ...
L. Jaime, E. Batllori, J. Margalef‐Marrase, Maria Angeles Navarro, F. Lloret   +4 more
semanticscholar   +1 more source

Tree species impact on understory vegetation: Vascular plant communities of Scots pine and Norway spruce managed stands in northern Europe

Forest Ecology and Management, 2019
The tree species used in production forests can have direct implications for the understory vegetation, due to species-specific differences in the environmental conditions provided, and silviculture applied.
Lisa Petersson, E. Holmström, M. Lindbladh, A. Felton   +3 more
semanticscholar   +1 more source

The current state of environmental pollution with sulfur dioxide (SO2) in Poland based on sulfur concentration in Scots pine needles.

Environmental Pollution, 2019
The current air pollution by SO2 due to anthropogenic pressure in Poland was assessed based on sulfur concentrations in pine needles (Pinus sylvestris L.). On 308 monitoring sample plots located in pine stands distributed across Poland, measurements were
J. Likus‐Cieślik, J. Socha, P. Gruba, M. Pietrzykowski   +3 more
semanticscholar   +1 more source

Transgressive overyielding in mixed compared with monospecific Scots pine (Pinus sylvestris L.) and oak (Quercus robur L., Quercus petraea (Matt.) Liebl.) stands – Productivity gains increase with annual water supply

Forest Ecology and Management, 2019
Tree species mixing has become a crucial tool in European forest management as positive interactions between species have been found to promote the provision of multiple ecosystem services, while at the same time reducing the risks associated with ...
M. Steckel, M. Heym, B. Wolff, D. Reventlow, H. Pretzsch   +4 more
semanticscholar   +1 more source

Hydraulic architecture of Scots pine

1998
The hydraulic architecture of plants is controlled by internal and external variables like, inter alia, species (Huber, 1928; Zimmermann, 1978; Yang and Tyree, 1993), genotype (Neufeld et al., 1992), competition (Sellin, 1993), site fertility (Espinosa-Banclari et al., 1987; Long and Smith, 1989), stand management (Pothier and Margolis, 1988), climate (
S. Rust, D. Lüttschwager, R. F. Hüttl
openaire   +1 more source

Needle area relationships of Scots pine in the Netherlands

Forest Ecology and Management, 1993
Abstract To analyse the foliage area characteristics of Scots pines of different sizes, 12 trees were selected out of 4 stands of different ages. From the selected trees, total needle area and needle area distribution were estimated from branch samples. Stem discs were collected to determine sapwood area at breast height.
van Hees, A.F.M., Bartelink, H.H.
openaire   +1 more source

The Large Pine Aphid on Scots Pine in Britain

1988
The large pine aphid, Cinara pinea (Mordvilko), infests a number of pines but is found most commonly on Scots pine (Pinus sylvestris).16 It is widely distributed throughout the Palaearctic, coinciding with the range of its main host plant.6 There are also numerous records from North America, where Scots pine has been introduced and grown on a ...
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ACCUMULATION OF SULPHUR IN AND ON SCOTS PINE NEEDLES IN THE SUBARCTIC

Water, Air, and Soil Pollution, 1997
Total S concentrations of Scots pine (Pinus sylvestris L.) needles studied in the Finnish subarctic (66–70°N, 24–30°E) in 1990/1992 ranged from 573 to 1153 μg g−1 Levels were found to be ∼ 900 μg g−1 (i.e. 1.3–1.8 times the ‘normal’ level of 500–700 μg g−1 in areas where the long-term ambient SO2 concentration was ∼ 2–5 μg m−3, particulate SO
Sirkku Manninen, Satu Huttunen, Matti Kontio   +2 more
openaire   +1 more source