Results 11 to 20 of about 50,751 (297)
14C in tree rings in the vicinity of the nuclear facility deployment areas [PDF]
Nuclear Energy and Technology, 2022 14C is naturally and artificially occurred radionuclide presented in atmosphere. 14C is produced during the operation of a nuclear reactor of any type, enters the atmosphere and became a part of carbon cycle. The article presents the results of measuring
Evgeny I. Nazarov +7 more
doaj +3 more sources
Acta Botânica Brasílica, 2016 The tree Piptadenia gonoachantha is widely used in forestry and in forest restoration projects, which require methods for evaluating tree growth. Long-term studies are necessary to determine patterns and detect changes in species growth rhythms.
Arno Fritz das Neves Brandes +3 more
doaj +1 more source
Monthly river flow modeling using earlywood vessel feature changes, and tree-rings
Ecological Indicators, 2021 Temporal records of river flow as essential data for water resource management plans are not available in many rivers around the world. In this study, monthly discharges of the Taskoh river in the north of Iran were simulated using dendrohydrology (the ...
Vahid Gholami +2 more
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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 +7 more sources
The role of the 13C isotope of the Tree Ring in Recording of Carbon Cycle Change in Atmosphere
Jurnal Ilmu Dasar, 2014 Some natural materials such as tree rings, rocks, sediments, ice cores, coral reefs, shell fish and micro fossil record the chemical, physical and biological changes in atmosphere that had taken place in the past.
E. Ristin Pujiindiyati
doaj +1 more source
Capturing spiral radial growth of conifers using the superellipse to model tree-ring geometric shape
Frontiers in Plant Science, 2015 Tree-rings are often assumed to approximate a circular shape when estimating forest productivity and carbon dynamics. However, tree rings are rarely, if ever, circular, thereby possibly resulting in under- or over-estimation in forest productivity and ...
Pei-Jian eShi +9 more
doaj +1 more source
Frontiers 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
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Variations of radiocarbon in tree rings: southern hemisphere offset preliminary results [PDF]
, 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
Forest 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
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Elements content in tree rings from Xi'an, China and environmental variations in the past 30 years [PDF]
, 2018 Using inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES), the characteristics of chemical elements were analyzed in white poplar (Populus bonatii Levl.) and ailanthus (Ailanthus ...
Cherubini, Paolo +5 more
core +1 more source