Results 41 to 50 of about 457 (112)

If Trees Could Talk - Dendrochemistry, a Promising Method for Understanding Pollution History [PDF]

open access: yes, 2023
Heavy metal pollution presents a significant environmental challenge in the Anthropocene era, and understanding pollution history is crucial to address historical pollution and implementing effective mitigation measures.
Uusitalo, Jonatan
core  

Characterization of Chlorinated Aliphatic Hydrocarbons and Environmental Variables in a Shallow Groundwater in Shanghai Using Kriging Interpolation and Multifactorial Analysis [PDF]

open access: yes, 2015
CAHs, as a cleaning solvent, widely contaminated shallow groundwater with the development of manufacturing in China's Yangtze River Delta. This study focused on the distribution of CAHs, and correlations between CAHs and environmental variables in a ...
Gu, JD   +5 more
core   +4 more sources

Soil Chemical Response to Experimental Acidification Treatments [PDF]

open access: yes, 2006
One of the conclusions reached during the Congressionally mandated National Acid Precipitation Program (NAPAP) was that, compared to ozone and other stress factors, the direct effects of acidic deposition on forest health and productivity were likely to ...
Adams, Mary Beth   +5 more
core   +3 more sources

Wood growth in pure and mixed Quercus ilex L. forests: drought influence depends on site conditions. [PDF]

open access: yes, 2019
Climate response of tree-species growth may be influenced by intra- and inter-specific interactions. The different physiological strategies of stress response and resource use among species may lead to different levels of competition and/or ...
Enrica Zalloni   +5 more
core   +3 more sources

Volcanic activity signals in tree-rings at the treeline of the Popocatépetl, Mexico [PDF]

open access: yes, 2020
The Popocatépetl volcano resumed its eruptive activity in 1994 and is still active. The largest eruption recorded during this new stage of activity occurred in December 2000. We traced the volcanic activity signal in tree-rings from Pinus hartwegii trees
Alfaro-Sánchez, Raquel   +5 more
core   +1 more source

Tropical dendrochemistry: A novel approach to estimate age and growth from ringless trees

open access: yesGeophysical Research Letters, 2006
Although tropical forests play an active role in the global carbon cycle and climate, their growth history remains poorly characterized compared to other ecosystems on the planet. Trees are prime candidates for the extraction of paleoclimate archives as they can be probed sub‐annually, are widely distributed and can live for over 1400 years [Chambers ...
P. M. Poussart   +2 more
openaire   +1 more source

Spatiotemporal Distribution of Mercury in Tree Rings and Soils Within Forests Surrounding Coal-Fired Power Plants

open access: yesAtmosphere
The release of mercury (Hg) from coal-fired power plants (CPPs) into local ecosystems poses substantial environmental and health hazards. This study was conducted in Chungcheong-nam-do, South Korea, a region featuring over half of the country’s coal ...
Eugene Ha   +5 more
doaj   +1 more source

X-ray based tree ring analyses [PDF]

open access: yes, 2004
In this thesis, two x-ray based dendro-analyses (batch-wise microdensitometry and energy dispersive x-ray fluorescence (EDXRF)) and the conditions under which these methods could be used on the two typical boreal conifers Norway spruce (Picea abies (L ...
Lindeberg, Johan
core  

Reconstruction of soil pH by dendrochemistry of Masson pine at two forested sites in the Pearl River Delta, South China [PDF]

open access: yesAnnals of Forest Science, 2008
• Soil acidification is a global concern. Base cation (Ca, Mg, Mn and Al) concentrations, as well as their molar ratios, were measured in tree rings of Masson pines (Pinus massoniana L.) from Dinghushan and Xiqiaoshan to reconstruct the historical changes in soil acidification in the Pearl River Delta, south China.
Wen Kuang, Yuan   +5 more
openaire   +2 more sources

Extractability of elements in sugar maple xylem along a gradient of soil acidity [PDF]

open access: yes, 2008
Dendrochemistry has been used for the historical dating of pollution. Its reliability is questionable due primarily to the radial mobility of elements in sapwood.
Baes   +76 more
core   +1 more source

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