Results 1 to 10 of about 1,067,691 (309)

Investigation and evaluation of copper and zinc concentration tendencies in Pinus sylvestris L. tree-rings / Vario ir cinko koncentracijos kaupimosi tendencijos Pinus sylvestris L. metinėse rievėse tyrimai ir vertinimas /

Journal of Environmental Engineering and Landscape Management, 2011
Free trace metals are one of the most relevant environmental problems of today; consequently, it is becoming important to evaluate their spatial distribution and accumulation rates in the natural environment.
Pranas Baltrėnas, Dovilė Vaitkutė
doaj   +1 more source

Extracting a common high frequency signal from Northern Quebec black spruce tree-rings with a Bayesian hierarchical model [PDF]

Climate of the Past, 2009
One basic premise of dendroclimatology is that tree rings can be viewed as climate proxies, i.e. rings are assumed to contain some hidden information about past climate.
J.-J. Boreux, P. Naveau, O. Guin, L. Perreault, J. Bernier   +4 more
doaj  

Analiza dendroecologică a regimului perturbărilor în pădurile din nordul Carpaţilor Orientali [Dendroecological analysis of disturbance regime in forests form the North of Eastern Carpathian] [PDF]

Bucovina Forestieră, 2003
The present structure of natural forest ecosystems from the North of Eastern Carpathian, his heterogeneity, is the results of the historic disturbances.
Popa I
doaj  

Using Annual Resolution Pollen Analysis to Synchronize Varve and Tree-Ring Records

Quaternary, 2019
Fossil wood and varved lake sediments allow proxy analysis with exceptionally high, (sub-)annual resolution. Both archives provide dating through ring and layer counting, yet with different accuracy.
Martin Theuerkauf, Eike Engelbrecht, Nadine Dräger, Michael Hupfer, Almut Mrotzek, Anja Prager, Tobias Scharnweber   +6 more
doaj   +1 more source

Reconstructing mass balance of Garabashi Glacier (1800–2005) using dendrochronological data

Лëд и снег, 2015
The exploration whether tree-ring data can be effectually applied for the mass balance reconstruction in Caucasus was the main goal of this research. Tree-ring width and maximum density chronologies of pine (Pinus sylvestris L.) at seven high-elevation ...
E. A. Dolgova, V. V. Matskovsky, O. N. Solomina, O. V. Rototaeva, G. A. Nosenko, I. V. Khmelevskoy   +5 more
doaj   +1 more source

Influence of position within the tree stem according to growth-ring width of spruce (Picea abies /L./ KARST.) with compression wood

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004
The work was focused on problematics of annual-rings width according to position within the tree stem. Annual-ring widths, ratio of late wood and early wood by spruce with compression wood were investigated.
Vladimír Gryc, Jiří Holan
doaj   +1 more source

Relationship between Ring Width and Tracheid Characteristics In Picea crassifolia: Implication in Dendroclimatology

BioResources, 2014
Ring width represents the total width of cells in a growing season. Relatively few studies have identified which of the parameters, cell number, size, or wall thickness is the greater contributor to variations in ring width.
Jinmei Xu, Jianxiong Lu, Robert Evans, Geoffrey M. Downes   +3 more
doaj   +1 more source

Spatiotemporal Distribution of Mercury in Tree Rings and Soils Within Forests Surrounding Coal-Fired Power Plants

Atmosphere
The release of mercury (Hg) from coal-fired power plants (CPPs) into local ecosystems poses substantial environmental and health hazards. This study was conducted in Chungcheong-nam-do, South Korea, a region featuring over half of the country’s coal ...
Eugene Ha, Ikhyun Kim, Heemun Chae, Sangsin Lee, Youngsang Ahn, Byoungkoo Choi   +5 more
doaj   +1 more source

Elevation-layered dendroclimatic signal in eastern Mediterranean tree rings

Environmental Research Letters, 2016
Networks of tree-ring data are commonly applied in statistical reconstruction of spatial fields of climate variables. The importance of elevation to the climatic interpretation of tree-ring networks is addressed using 281 station precipitation records ...
Ramzi Touchan, Vladimir V Shishov, Ivan I Tychkov, Fatih Sivrikaya, Jihad Attieh, Muzaffer Ketmen, Jean Stephan, Ioannis Mitsopoulos, Andreas Christou, David M Meko   +9 more
doaj   +1 more source

Tree-rings analysis to reconstruct atmospheric mercury contamination at a historical mining site. [PDF]

Front Plant Sci, 2023
Baroni D, Ancora S, Franzaring J, Loppi S, Monaci F.   +4 more
europepmc   +1 more source