Results 21 to 30 of about 264,426 (285)

Impact of forest fire on radial growth of tree rings and their element concentrations of Pinus sylvestris and Larix gmelinii in northern China

open access: yesFrontiers in Forests and Global Change, 2023
AimsThrough analyzing the responses of the radial growth and element concentrations (B, Mg, Al, K, Ca, Mn, Fe, Zn, Na, P, Ni, and Cu) of tree rings of two dominant tree species to forest fires, we aimed to investigate the relationship between tree rings ...
Mao Wei   +7 more
doaj   +1 more source

A 241-Year Cryptomeria fortune Tree-Ring Chronology in Humid Subtropical China and Its Linkages with the Pacific Decadal Oscillation

open access: yesAtmosphere, 2020
Humid subtropical China is an “oasis” relative to other dry subtropics of the world due to the prevailing of the East Asian summer monsoon (EASM).
Zhipeng Dong   +8 more
doaj   +1 more source

Short communication: Many missing rings in old Canary pines can be related with age, fires and traditional uses

open access: yesForest Systems, 2017
Aim and area of study: In the present paper we estimated the age of four monumental Pinus canariensis of Gran Canaria (Canary Islands, Spain) by means of tree-ring analysis.
Mar Génova   +2 more
doaj   +1 more source

Survival, growth and carbon content in a forest plantation established after a clear-cutting in Durango, Mexico [PDF]

open access: yesPeerJ, 2020
Background Forest plantations play an important role in carbon sequestration, helping to mitigate climate change. In this study, survival, biomass, growth rings and annual carbon content storage were evaluated in a mixed Pinus durangensis and P.
Jesús Alejandro Soto-Cervantes   +5 more
doaj   +2 more sources

DendroSync: An R package to unravel synchrony patterns in tree-ring networks [PDF]

open access: yes, 2017
Spatial synchrony refers to the presence of a common signal for a time-varying characteristic that, in dendrosciences, is shared among tree-ring chronologies from a particular area.
Alday, Josu G.   +3 more
core   +2 more sources

Tree growth acceleration and expansion of alpine forests: The synergistic effect of atmospheric and edaphic change. [PDF]

open access: yes, 2016
Many forest ecosystems have experienced recent declines in productivity; however, in some alpine regions, tree growth and forest expansion are increasing at marked rates.
Horwath, William R   +5 more
core   +2 more sources

A Combinatorial Discussion on Finite Dimensional Leavitt Path Algebras [PDF]

open access: yes, 2012
Any finite dimensional semisimple algebra A over a field K is isomorphic to a direct sum of finite dimensional full matrix rings over suitable division rings.
Esin, Songul   +7 more
core   +2 more sources

Snowpack signals in North American tree rings

open access: yesEnvironmental Research Letters, 2021
Climate change has contributed to recent declines in mountain snowpack and earlier runoff, which in turn have intensified hydrological droughts in western North America.
Bethany L Coulthard   +5 more
doaj   +1 more source

Juniper from Ethiopia contains a large-scale precipitation signal [PDF]

open access: yes, 2008
Most semiarid regions are facing an increasing scarcity of woody vegetation due mainly to anthropogenic deforestation aggravated by climate changes. However, there is insufficient information to reconstruct past changes in climate and to evaluate the ...
Couralet, C.   +3 more
core   +2 more sources

Variations of radiocarbon in tree rings: southern hemisphere offset preliminary results [PDF]

open access: yes, 1998
The Queen's University of Belfast, Northern Ireland and University of Waikato, Hamilton, New Zealand radiocarbon laboratories have undertaken a series of high-precision measurements on decadal samples of dendrochronologically dated oak (Quercus patrea ...
Baillie, Mike G.L.   +8 more
core   +2 more sources

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