Results 21 to 30 of about 155,890 (305)
New Phytologist, 2022 Summary The impact of climate extremes on forest ecosystems is poorly understood but important for predicting carbon and water cycle feedbacks to climate. Some knowledge gaps still remain regarding how drought‐related adjustments in intra‐annual tree‐ring ...
Elisabet Martínez‐Sancho +4 more
openaire +3 more sources
Monthly paleostreamflow reconstruction from annual tree-ring chronologies
Journal of Hydrology, 2018 Abstract Paleoclimate reconstructions are increasingly used to characterize annual climate variability prior to the instrumental record, to improve estimates of climate extremes, and to provide a baseline for climate-change projections. To date, paleoclimate records have seen limited engineering use to estimate hydrologic risks because water systems ...
Stagge, James H. +3 more
openaire +4 more sources
Frontiers 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
Survival, growth and carbon content in a forest plantation established after a clear-cutting in Durango, Mexico [PDF]
PeerJ, 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
Stem Radial Growth Is Negatively Related to Tree Defoliation and Damage in Conifers, Northern Italy
Frontiers in Forests and Global Change, 2021 Although several manipulative experiments provided evidence for a negative effect of defoliation on tree growth, results from observational studies were less univocal. This may be due to the ability of observed defoliation to reflect the health status of
Marco Ferretti +2 more
doaj +1 more source
Radiocarbon and wood anatomy as complementary tools for generating tree-ring records in Bolivia
Frontiers in Plant Science, 2023 The science of tropical dendrochronology is now emerging in regions where tree-ring dating had previously not been considered possible. Here, we combine wood anatomical microsectioning techniques and radiocarbon analysis to produce the first tree-ring ...
Arturo Pacheco-Solana +13 more
doaj +1 more source
Radiocarbon releases from the 2011 Fukushima nuclear accident [PDF]
, 2016 Radiocarbon activities were measured in annual tree rings for the years 2009 to 2015 from Japanese cedar trees (Cryptomeria japonica) collected at six sites ranging from 2.5–38 km northwest and north of the Fukushima Dai-ichi nuclear power plant. The 14C
Cook, Gordon T. +10 more
core +2 more sources
Explaining global increases in water use efficiency: why have we overestimated responses to rising atmospheric CO(2) in natural forest ecosystems? [PDF]
, 2013 BackgroundThe analysis of tree-ring carbon isotope composition (δ(13)C) has been widely used to estimate spatio-temporal variations in intrinsic water use efficiency (iWUE) of tree species.
Horwath, William R, Silva, Lucas CR
core +4 more sources
Identification of anatomically non-distinct annual rings in tropical trees using stable isotopes [PDF]
Trees, 2010 Annual rings are generally not anatomically distinct in trees growing in the humid tropics. The possibility to use radial variation in stable isotopes (δ18O and δ13C) for the identification of annual rings in these trees was investigated in two species growing in the tropical rainforest of Central Guyana, Carapa guianensis and Goupia glabra.
Pons, T., Helle, G.
openaire +6 more sources
A Laser Photoacoustic Analysis of Residual CO2 and H2O in Larch Stems
Biosensors, 2014 Every so often, the results obtained from investigations into the effects of varying environmental conditions on the tree growth rate at the same sites and on the change in the carbon balance in plants, using traditional methods, are found to differ ...
Boris Ageev +3 more
doaj +1 more source