SELENIUM SPECIATION IN SELENIUM-RICH SOIL OF SANYUAN- YANLIANG AREA
Author(s): Yi Zong-yi, Ren Rui, Zhao Xu, Yi Bo, Chen En-ke, Shaanxi Center of Geological Survey
Pages: 31-37
Year: 2016 Issue: 1
Journal: Geology of Shaanxi
Keyword: selenium-rich soil; selenium speciation; pH value; trace element;
Abstract: According to Li Jiaxi’ s classification standard of selenium content in soil,seleniumrich soil occurring in Sanyuan-Yanliang area can be attributed to selenium-bearing soil( 0. 2 ~ 0. 4mg / kg) and selenium-rich soil( > 0. 4 mg / kg). The strong organic binding state,humic acid bound state and the sum of water soluble states of selenium in soil are over 50% of total selenium content,which are easily absorbed and used by plants under alkaline environment.
Pages: 31-37
Year: 2016 Issue: 1
Journal: Geology of Shaanxi
Keyword: selenium-rich soil; selenium speciation; pH value; trace element;
Abstract: According to Li Jiaxi’ s classification standard of selenium content in soil,seleniumrich soil occurring in Sanyuan-Yanliang area can be attributed to selenium-bearing soil( 0. 2 ~ 0. 4mg / kg) and selenium-rich soil( > 0. 4 mg / kg). The strong organic binding state,humic acid bound state and the sum of water soluble states of selenium in soil are over 50% of total selenium content,which are easily absorbed and used by plants under alkaline environment.
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