浙西常山地区富硒土壤特征及成因分析

doi:10.11720/wtyht.2019.1415

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Abstract

Through the investigation and study of surface soil in Changshan County, western Zhejiang Province, a large area of selenium-rich soil was found, and the distribution characteristics of selenium were summarized. The mean amount of selenium in the surface soil in the study area is 0.44×10 ^-6, and different soil types obviously have different amounts of selenium. The amount of soil selenium of the lime (rock) soil is the highest, with the average value being 0.58×10 ^-6, and different parent materials obviously have different amounts of selenium. The amount of soil selenium content in Holocene flood alluvium is the highest, with the average value being 0.59×10 ^-6. The probability accumulation curve shows that the exogenous input components in Changshan have little effect on soil selenium. The amount of soil selenium is closely related to the values of V, Mo, Ni, Cr, S,Cu and Cd (P<0.01), and is also closely related to organic matter (r=0.35), with no significant correlation with soil pH. The selenium values of marlstone in Xiyangshan Formation, carbonaceous shale and siliceous rock in Hetang Formation and carbonaceous shale in Ningguo Formation are relatively high. Selenium in soil inherits selenium in rocks. The wide distribution of selenium-rich rocks is the important reason for the formation of selenium-rich soils.

Key words： selenium-rich soil parent materials sources of selenium Changshan County

Received: 13 November 2018 Published: 31 May 2019

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	Articles by authors
	Dao-Rong LIU
	Hong XU
	Yi ZHOU
	Jian-Guo HOU
	Yuan-Qing SONG
	Yong-Rong WENG

Cite this article:

Dao-Rong LIU,Hong XU,Yi ZHOU, et al. Characteristics and genetic analysis of selenium-rich soil in Changshan County, western Zhejiang Province[J]. Geophysical and Geochemical Exploration, 2019, 43(3): 658-666.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2019.1415 OR https://www.wutanyuhuatan.com/EN/Y2019/V43/I3/658

Character of the content of selenium in surface soil of Changshan County

Frequency of the content of selenium in surface soil of Changshan County

The space distribution map of selenium in surface soil of Changshan County

Statistics of the content of selenium in different soil types of Changshan County

Statistics of the content of selenium in different parent material of Changshan County

Probability cumulative distribution graph of selenium in surface soil of Changshan County

Relation coefficient between selenium and other contents in soil, Changshan County

Mean value of selenium in different types of rocks in Changshan County

Relationship chart about selenium and other contents of soil

Some elements content of Hetang formation,Cambrian system in Zhejiang Province 10^-6

Sketch map of Selenium-rich Strata distribution in Changshan County (modified after 1:100 000 Changshan geology sketch map)

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