Results 21 to 30 of about 1,067,691 (309)
Radiocarbon and wood anatomy as complementary tools for generating tree-ring records in Bolivia
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
Stable Isotopes in Tree Rings [PDF]
This Open Access volume highlights how tree ring stable isotopes have been used to address a range of environmental issues from paleoclimatology to forest management, and anthropogenic impacts on forest growth.
core +2 more sources
The role of the 13C isotope of the Tree Ring in Recording of Carbon Cycle Change in Atmosphere
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
Monthly river flow modeling using earlywood vessel feature changes, and tree-rings
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
doaj +1 more source
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
Capturing spiral radial growth of conifers using the superellipse to model tree-ring geometric shape
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
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
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
Tracing volcanic eruptions and anthropogenic pollution in tree rings: preliminary results from synchrotron-light chemical analyses [PDF]
We analysed larch trees from high elevation in northern Italy for Hg with a Lumex RA-915M Mercury Analyzer with pyrolyzer PYRO-915+) and for S, Zn, Cu, Ni, Pb (by synchrotron light X-ray fluorescence at beamline i18 Diamond Light Source, UK). Hg analyses
Manfredo Capriolo +9 more
core
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

