Results 31 to 40 of about 525 (121)

Synchrotron-based X-ray microscopy for assessing elements distribution and speciation in mangrove tree-rings

Results in Chemistry, 2021
Micro-X-ray fluorescence (μ-XRF) spectroscopy has been used for dendrochemistry as a high spatial resolution, multi-elemental and non-destructive technique.
Elton Eduardo Novais Alves, Daigard Ricardo Ortega Rodriguez, Pablo de Azevedo Rocha, Leonardus Vergütz, Luiz Santini Junior, Dean Hesterberg, Luiz Carlos Ruiz Pessenda, Mario Tomazello-Filho, Liovando Marciano da Costa   +8 more
doaj   +1 more source

Tree Rings Mercury Controlled by Atmospheric Gaseous Elemental Mercury and Tree Physiology. [PDF]

Environ Sci Technol
Tree rings are an emerging atmospheric mercury (Hg) archive. Questions have arisen, though, regarding their mechanistic controls and reliability. Here, we report contrasting tree-ring Hg records in three collocated conifer species: Norway spruce (Picea ...
Peng H, Zhang X, Bishop K, Marshall J, Nilsson MB, Li C, Björn E, Zhu W.   +7 more
europepmc   +3 more sources

Does climate change alter the nutrient trends of Cedrela fissilis Vell. trees in the southern Brazilian Amazon?

Ecological Processes, 2023
Background The increase in the frequency and intensity of droughts is pointed out as one of the main factors altering biogeochemical cycles in the Amazon basin.
Daigard R. Ortega Rodriguez, Raúl Sánchez-Salguero, Andrea Hevia, Renata C. Bovi, Marciel J. Ferreira, James H. Speer, Fidel A. Roig, Mario Tomazello-Filho   +7 more
doaj   +1 more source

High-resolution densitometry and elemental analysis of tropical wood. [PDF]

Trees (Berl West), 2015
Hietz P, Horsky M, Prohaska T, Lang I, Grabner M.   +4 more
europepmc   +3 more sources

Thermal analysis of wood of the main tree species of Central Siberia [PDF]

Сибирский лесной журнал, 2015
Thermal decomposition of wood from coniferous and deciduous species of Siberia has been studied using thermogravimetry (TG) and differential scanning calorimetry (DSC).
S. R. Loskutov, O. A. Shapchenkova, A. A. Aniskina   +2 more
doaj   +1 more source

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, Liu, Ruoshi, Liu, Yu, Sun, Changfeng, Ta, Weiyuan, Wang, Yanchao   +5 more
core   +1 more source

Vegetation and Acidification [PDF]

, 2006
In this chapter, the impact of watershed acidification treatments on WS3 at the Fernow Experimental Forest (FEF) and at WS9 on vegetation is presented and summarized in a comprehensive way for the first time.
Adams, Mary Beth, DeWalle, David R., Gilliam, Frank S., Kochenderfer, James N., Miller, Gary W., Odenwald-Clemens, Stephanie S., Sharpe, William E., Wood, Frederica   +7 more
core   +3 more sources

Tungsten and Cobalt: Sheppard et al. Respond [PDF]

Environ Health Perspect, 2008
Gary Ridenour, Goodale AM, Mark L. Witten, Paul R. Sheppard, Robert J. Speakman, Shimkin MB   +5 more
europepmc   +3 more sources

Influence of production variables and starting material on charcoal stable isotopic and molecular characteristics [PDF]

, 2008
We present a systematic study on the effect of starting species, gas composition, temperature, particle size and duration of heating upon the molecular and stable isotope composition of high density (mangrove) and low density (pine) wood.
Alemany, Antal, Antal, Atalla, Baldock, Benner, Beramendi-Orosco, Bird, Blann, C.E. Snape, Cachier, Carcaillet, Chaloner, Clark, Czimczik, Czimczik, D. Apperley, Earl, Eckmeier, Ehrlinger, Ehrlinger, Evans, Fengel, Ferrio, Gavin, Gleixner, Goebel, Hakkou, Hall, Hatcher, Inari, Irbe, Jones, Knicker, Kringstad, Krull, Labbé, Leavitt, Levine, Li, Loader, M.I. Bird, Marino, Martinez, Maunu, McCarroll, Mok, Mörck, Nogueira, Novakov, P. Wormald, P.L. Ascough, Pandey, Pessenda, Poole, Qian, Richard, Robertson, Sima-Ella, Simpson, Sivonen, Sjöström, Skjemstad, Skjemstad, Soares, Steinbeiss, Swift, Turekian, Turney, Verheyden, Völker, Werts, Wikberg, Williams, Wilson, Wormald, Xiao   +76 more
core   +1 more source

Chemical elements recorded by Quercus mongolica Fisch. ex Ledeb. Tree rings reveal trends of pollution history in Harbin, China [PDF]

, 2023
Rapid industrialization has led to a dramatic increase in air pollution. In China, the factors driving the abundance and composition of smog, particularly fine particulate matter, remain poorly understood, and short-term air pollution data are available ...
Bachmann, Olivier, Ballikaya, Paula, Cherubini, Paolo, Guillong, Marcel, Song, Wenqi, Wang, Xiaochun   +5 more
core   +1 more source