干旱区生态环境知识资源中心(Arid): Distance-dependence from volcano for Asian dust inclusions in Andosols: A key to control soil ability to retain radiocesium

Arid

DOI	10.1016/j.geoderma.2020.114889
	Distance-dependence from volcano for Asian dust inclusions in Andosols: A key to control soil ability to retain radiocesium
	Nakao, Atsushi; Uno, Shiori; Yanai, Junta; Kubotera, Hideo; Tanaka, Ryoji; Root, Robert A.; Kosaki, Takashi
通讯作者	Nakao, A (corresponding author), Kyoto Prefectural Univ, Dept Life & Environm Sci, Sakyo Ku, 1-5 Shirnogarnohangi Cho, Kyoto 6068522, Japan.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	385
英文摘要	Deposition of Asian dust, i.e. mica-bearing aeolian particles, throughout geological times has contributed greatly to the increased ability of soil to specifically retain radiocesium (Cs-137), particularly in soils derived from mica-deficient parent materials. Allophanic Andosols, volcanic mica-deficient soils, in Japan were hypothesized to contain fewer micaceous minerals proximal to volcanoes due to the dilution of Asian dust by thicker volcanic ash depositions. To test this hypothesis, we collected soils from stratified horizons mainly composed of mafic volcanic ash at four sites near the volcanic crater of Mt. Aso, Japan. The profiles were in volcanic ash soil dominated by poorly ordered clay minerals, and classified as Allophanic Andosols. Radiocesium interception potential (RIP) and mineral content were determined on soil particles fractionated to < 20 mu m effective spherical diameter. The RIP for these particles ranged widely from < 0.1 to 4.5 mol kg soil(-1), showed a strong-positive correlation with mica and quartz content, and increased with distance away from the crater. Isolated quartz grains, ranging from 2 to 20 mu m, were analyzed for oxygen isotopic ratio (delta O-18) as an indicator of Asian dust contribution. The average delta O-18 was 16.0 +/- 0.4 parts per thousand, very close to those of fine quartz in the Gobi Desert, while clearly differentiated from high temperature formation environments of SiO2 grains from volcanic origins, delta O-18 < 10 parts per thousand. Results showed that RIP of Allophanic Andosols is primarily controlled by the proportion of Asian dust incorporated into volcanic ashes, which increased with distance from the main volcanoes. These findings improve predictions of the spatial distribution patterns soil radio cesium (RC) and the soil-to-plant transfer of RCs in Andosols in Japan.
英文关键词	Allophanic Andosol Asian dust delta O-18 oxygen isotopic analysis Radiocesium interception potential (RIP) Volcanic ash
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000609999200038
WOS关键词	CLAY-MINERALS ; ORGANIC-MATTER ; SEDIMENTS ; RETENTION ; FUKUSHIMA ; SORPTION ; QUARTZ ; JAPAN ; ROCKS ; ADSORPTION
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347922
作者单位	[Nakao, Atsushi; Uno, Shiori; Yanai, Junta] Kyoto Prefectural Univ, Dept Life & Environm Sci, Sakyo Ku, 1-5 Shirnogarnohangi Cho, Kyoto 6068522, Japan; [Kubotera, Hideo] Natl Agr & Food Res Org, Cent Reg Agr Res Ctr, 2-1-18 Kannondai, Tsukuba, Ibaraki 3058666, Japan; [Tanaka, Ryoji] Okayama Univ, Inst Planetary Mat, Pheasant Mem Lab Geochem & Cosmochem, Misasa, Tottori 6820193, Japan; [Root, Robert A.] Univ Arizona, Dept Soil Water & Environm Sci, Tucson, AZ 85721 USA; [Kosaki, Takashi] Aichi Univ, Fac Int Commun, 4-60-6 Hiraike Cho, Nagoya, Aichi 4538777, Japan; [Kubotera, Hideo] Natl Agr & Food Res Org, Inst Agroenvironm Sci, 3-1-3 Kannondai, Tsukuba, Ibaraki 3058604, Japan
推荐引用方式 GB/T 7714	Nakao, Atsushi,Uno, Shiori,Yanai, Junta,et al. Distance-dependence from volcano for Asian dust inclusions in Andosols: A key to control soil ability to retain radiocesium[J]. University of Arizona,2021,385.
APA	Nakao, Atsushi.,Uno, Shiori.,Yanai, Junta.,Kubotera, Hideo.,Tanaka, Ryoji.,...&Kosaki, Takashi.(2021).Distance-dependence from volcano for Asian dust inclusions in Andosols: A key to control soil ability to retain radiocesium.GEODERMA,385.
MLA	Nakao, Atsushi,et al."Distance-dependence from volcano for Asian dust inclusions in Andosols: A key to control soil ability to retain radiocesium".GEODERMA 385(2021).