Results 91 to 100 of about 732,533 (207)

Effects of the position in a stem on the variability of tracheids in spruce (Picea abies /L./ Karst.) with the occurrence of reaction wood

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
The paper is aimed at the field of the microscopic structure of wood dealing with the description of the most important anatomic element in softwood – tracheids in a stem with the occurrence of reaction wood.
Vladimír Gryc, Hanuš Vavrčík
doaj   +1 more source

Monitoring of damage from cedar shoot moth Dichelia cedricola Diakonoff (Lep.: Tortricidae) by multi-temporal Landsat imagery

open access: yesiForest - Biogeosciences and Forestry, 2014
In this study defoliation damage in Taurus cedar (Cedrus libani A. Rich) stands in Turkey (Isparta region) caused by cedar shoot moth (Dichelia cedricola Diakonoff - Lep.: Tortricidae) was examined using multi-temporal Landsat data.
Çoban H O, Özçelik R, Avci M
doaj   +1 more source

Your Lawn [PDF]

open access: yes, 1968
PDF pages ...
Davis, Richard R.   +5 more
core  

Influence of Climatic Factors on Annual Rings of Conifers

open access: yesZeitschrift für Naturforschung C, 1999
Abstract Relationships of the width of annual rings of 75-85-year old Pinns sylvestris L. and Picea abies (L.) Karst, with average monthly temperature, amount of precipitation and a complex climatic indicator developed on their basis was studied against the background of pollution load in the zone influenced by a cement plant and in a ...
Katri Ots, Jtiri Rauk
openaire   +1 more source

Neutrino radiation hazard at the planned CERN neutrino factory [PDF]

open access: yes, 2002
This note briefly discusses the radiation hazard which may be posed by the neutrino radiation generated in the decay of an intense 50GeV muon beam circulating in the storage ring of a future Neutrino Factory.
Silari, Marco, Vincke, H H
core  

Formation of Annual Ring Eccentricity in Coarse Roots within the Root Cage of Pinus ponderosa Growing on Slopes. [PDF]

open access: yesPlants (Basel), 2020
Montagnoli A   +6 more
europepmc   +1 more source

A 1100‐Year Blue‐Ring Record Reveals Sub‐Annual Cooling Events Hidden in Tree‐Ring Width Chronologies

open access: yesGeophysical Research Letters
Tree‐ring width (RW) records primarily capture low‐frequency temperature variability, yet resolving high‐frequency signals is critical for testing climate models and contextualizing modern extremes. Blue rings (BRs)—bands of unlignified cells revealed by
Liliana Siekacz   +4 more
doaj   +1 more source

Road Expansion and Urban Highways: Consequences Outweigh Benefits in Kathmandu [PDF]

open access: yes, 2017
Rapid urbanization has transformed Kathmandu Valley, Nepal, one of the fastest growing metropolitan regions in South Asia. This urbanization, in turn, is leading to considerable social, economic, and environmental stress.
Chand, Priyankar Bahadur   +2 more
core   +1 more source

Variations in a Few Macronutrient Elements Depending on the Period in Black Pine (Pinus nigra Arnold.) Wood

open access: yesForestist
Nutrient elements are essential for plant growth and development. Magnesium (Mg), calcium (Ca), potassium (K), and sulfur (S), which are macronutrient elements for plants, are necessary for plant development.
İsmail Koç   +3 more
doaj   +1 more source

Do centennial tree-ring and stable isotope trends of Larix gmelinii (Rupr.) Rupr. indicate increasing water shortage in the Siberian north? [PDF]

open access: yes, 2018
Tree-ring width of Larix gmelinii (Rupr.) Rupr., ratios of stable isotopes of C (δ13C) and O (δ18O) of whole wood and cellulose chronologies were obtained for the northern part of central Siberia (Tura, Russia) for the period 1864-2006. A strong decrease
Kirdyanov, Alexander   +7 more
core  

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