Results 11 to 20 of about 3,315,361 (147)

Tree rings provide early warning signals of jack pine mortality across a moisture gradient in the southern boreal forest [PDF]

open access: yesEnvironmental Research Letters, 2015
Recent declines in productivity and tree survival have been widely observed in boreal forests. We used early warning signals (EWS) in tree ring data to anticipate premature mortality in jack pine ( Pinus banksiana )—an extensive and dominant species ...
S D Mamet   +4 more
doaj   +2 more sources

Tree-Rings and Radiocarbon

open access: yes, 1986
Tree-Rings and Radiocarbon, St. Gregory High School, 8 January 1986This item is part of the Natural History Reports collection. It was digitized from a physical copy provided by the Laboratory of Tree-Ring Research at The University of Arizona.
Ferguson, C. W.
core   +5 more sources

Volcanic cooling signal in tree ring temperature records for the past millennium [PDF]

open access: yes, 2013
The authors acknowledge the National Science Foundation for funding much of the research presented herein. RW's Scottish work is currently funded through the UK Leverhulme Trust and Natural Environment Research Council (NERC) projects, “RELiC ...
Anchukaitis, Kevin   +8 more
core   +1 more source

Energetic impact of reconstructed debris flow on the intensity and duration of growth disturbances in tree rings

open access: yesFrontiers in Earth Science, 2023
A rare study on the quantitative relationship between the energetic impact of debris flows on the intensity and duration of growth disturbances of tree rings was carried out, partly due to a lack of feasible approaches and detailed field evidence.
Xueliang Wang   +15 more
doaj   +1 more source

Growing season thermal climate reconstructed at six pine stands in northern Lapland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1994
At the northern coniferous timberline of the boreal region, growing season temperature is generally the major environmental factor limiting the growth processes of Scots pine (Pinus sylvestris L.). Variations in annual ring-widths of pines can be related
M. Lindholm, J. Meriläinen
doaj   +1 more source

Radiocarbon Dating of an Olive Tree Cross-Section: New Insights on Growth Patterns and Implications for Age Estimation of Olive Trees

open access: yesFrontiers in Plant Science, 2017
The age of living massive olive trees is often assumed to be between hundreds and even thousands of years. These estimations are usually based on the girth of the trunk and an extrapolation based on a theoretical annual growth rate.
Yael Ehrlich   +3 more
doaj   +1 more source

ANNUAL RINGS OF SCOTS PINE (PINUS SYLVESTRIS L.) IS THE INDICATOR OF GEOCHEMICAL CONDITIONS AND CHRONOLOGICAL CHANGES IN CHEMICAL ELEMENTAL COMPOSITION OF THE ENVIRONMENT

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research consists in the need to search for invention of accurate and informative indicator for ecological monitoring. The aim of the research is to study the features of chemical elements accumulation in annual rings of pine (Pinus ...
Anastasia S. Mironova   +3 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

Dendrochronology in the dry tropics: the Ethiopian case [PDF]

open access: yes, 2010
Dendrochronology is developing outside temperate and boreal regions. Over the past decade substantial progress has been made in Mediterranean and wet tropical regions.
C. Couralet   +32 more
core   +1 more source

Tree-Rings and Sunspot Numbers

open access: yes, 1972
Tree-ring series that record climatic variation have long been of interest for study of possible effects of solar variability on terrestrial phenomena.
LaMarche, Valmore C., Jr.   +1 more
core   +5 more sources

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