Historical changes in soil acidification inferred from the dendrochemistry of a Tateyama cedar at Bijodaira, Mt. Tateyama, Japan

Horikawa, Kazuki; Takeda, Moeka; Kawasaki, Kazuo; Zhang, Jing

doi:10.2343/geochemj.2.0261

Cited by 7 publications

(2 citation statements)

References 44 publications

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“…This result agrees with previous results that indicated chlorite was the host phase of As and that oxidation-decomposition of this mineral was the primary cause of As-contaminated groundwater (Masuda et al, 2012). Horikawa et al (2013), analyzed Ca, Mg, Mn, Sr, Ba, and Pb concentrations in tree-rings of a Tateyama cedar (Cryptomeria japonica) at Bijodaira, covering a record from 1915 to 1993, to understand when soil acidification began, the extent of soil acidification, and its influence on forest soil environments. The radial distributions of each element in the Tateyama cedar were classified into four groups: (I) increasing concentrations toward the outermost ring (Ca 2+ Toyama et al (2013) at six sites.…”

supporting

confidence: 83%

Preface: Recent progress in environmental hydrogeochemistry

Zhang

Kusakabe

2013

Geochem. J.

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supporting

confidence: 83%

Preface: Recent progress in environmental hydrogeochemistry

Zhang

Kusakabe

2013

Geochem. J.

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“…Dendrochemical studies usually involve an analysis of two or more cores per tree and more than one tree of a given species per site [17,21,25]. However, due to the specificity of the research area and the research questions posed, published papers also tend to include studies in which a relatively small number of trees were used (several meticulously selected cores) [17,[26][27][28][29]]. An additional limitation concerns issues related to the suitability of individual tree species for dendrochemical research [19,[30][31][32][33][34], long a focus of scientific interest.…”

Section: Application Of Dendrochemistry In Environmental Monitoringmentioning

confidence: 99%

Challenges in the Application of Dendrochemistry in Research on Historical Environmental Pollution in an Old Copper Mining Area

Dobrzańska

Lochyński

Kalbarczyk

et al. 2021

Forests

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This research investigates the long-term environmental impact and historical temporal pollution patterns caused by a former copper mine in Iwiny (south-western Poland) using a dendrochemical approach. An additional aspect of this research was considering the possibility of using the inductively coupled plasma-optical emission spectrometry (ICP-OES) measurement technique as a cheaper alternative to inductively coupled plasma mass spectrometry (ICP-MS) in dendrochemical analyses conducted in copper mining areas. In the study area, a tailings storage facility (TSF) dam failure (1967) took place and the alkaline flotation waste containing high concentration of Cu and Pb are stored. Tree cores from pedunculate oak (Quercus robur L.) were analysed for the content of 11 trace elements (TEs) (Cd, Mn, Ni, Zn, Cr, Co, Pb, Cu, Fe, Al, Ag) using the ICP-OES technique, while tree rings’ widths (TRWs) were also measured. Samples that were most significant in the context of the research goals were verified with the ICP-MS method. The results revealed the strong long-term impact of the copper industry as reflected in a substantial increase in the mean contents of: (1) Mn, Ni, Zn, Cr, Pb, Cu and Fe in industrial vs. control trees, (2) TRWs for control vs. industrial trees. However, the observed patterns of TEs and TRWs did not correspond to the known timing of pollution inputs (mining activity, tailings spill). Peak levels were observed for Zn and Fe after the mine was closed. The lack of new sources of pollution and the temporal relationship strongly suggests that the tree rings recorded the chemical signal of the TSF reclamation (the use of fertilizers and agrotechnical interventions). Patterns of 7 elements were detected in most of the samples by ICP-OES (Co and Cd were not detected, Al and Ag were partly detected), while ICP-MS detected all of the elements. Significant differences were obtained for Ag, Cd, and Co. Despite challenges with the application of dendrochemistry in research on old mining areas (e.g., lack of old trees), it has proved to be a useful tool for investigating the aggregate environmental impact.

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Magnetic biomonitoring of roadside pollution in the restricted Midagahara area of Mt. Tateyama, Toyama, Japan

Kawasaki

Horikawa

Sakai

2017

Environ Sci Pollut Res

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Magnetic biomonitoring techniques and in situ topsoil magnetic susceptibility measurements have been shown to be rapid, cost-effective, and useful methods for investigating roadside pollution. However, combustible vegetation in samples makes it very difficult to use them in high-temperature magnetic experiments although the thermal alteration of spontaneous magnetization is a fundamental magnetic property and can be used to identify reliably the magnetic minerals. Here, we report the first magnetic biomonitoring results of dust deposited on plant leaves along the Tateyama-Kurobe Alpine route at the highly protected Midagahara wetland areas of Mt. Tateyama in Toyama, Japan. In-field magnetic susceptibility from 15 sites (161 points) shows higher susceptibilities near the roadside. Dust deposited on the leaves of Sasa kurilensis, or dwarf bamboo, has been wiped off at 12 sites (64 samples) with a commercial ethanol wipe sheet or silica wool damped in ethanol and subjected to rock magnetic analyses. Thermomagnetic remanence curves and low-temperature behaviors for samples collected near the roadside using silica wool show clearly that the main magnetic mineral in the dust is partially oxidized magnetite. Further, detailed rock magnetic analyses and elemental analyses of leaves in the study area indicate that (a) the magnetic mineralogy on leaves' surface is consistent throughout the study area and (b) higher saturation isothermal remanent magnetization intensities as well as higher concentrations of Pb, Fe, Cr, and Y are observed near the roadside, i.e., the closer to the roadside, the more anthropogenic materials, including partially oxidized magnetite, are present. Also, microscopic observations show the lack of spherical grains, indicating that dust on the roadside leaves is derived from passing vehicle rather than industrial process. Both rock magnetic and geochemical results show that S. kurilensis would be an excellent candidate for investigating air pollution. Also, the proposed wiping-off method of collecting dust from plant surfaces is an effective non-destructive method that can be applied even in highly restricted collection areas, because detailed magnetic mineralogy, including superparamagnetic minerals, could be determined with the use of silica wool for use in both high- and low-temperature experiments.

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Historical changes in soil acidification inferred from the dendrochemistry of a Tateyama cedar at Bijodaira, Mt. Tateyama, Japan

Cited by 7 publications

References 44 publications

Preface: Recent progress in environmental hydrogeochemistry

Preface: Recent progress in environmental hydrogeochemistry

Challenges in the Application of Dendrochemistry in Research on Historical Environmental Pollution in an Old Copper Mining Area

Magnetic biomonitoring of roadside pollution in the restricted Midagahara area of Mt. Tateyama, Toyama, Japan

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