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Parent material modulates land use effects on soil selenium bioavailability in a selenium-enriched region of southwest China
Geoderma ( IF 6.1 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.geoderma.2020.114554 Kongcao Xiao , Lufeng Lu , Junjie Tang , Hao Chen , Dejun Li , Yongxian Liu
Geoderma ( IF 6.1 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.geoderma.2020.114554 Kongcao Xiao , Lufeng Lu , Junjie Tang , Hao Chen , Dejun Li , Yongxian Liu
Abstract Land use effects on the biogeochemical cycling of the essential trace element selenium (Se) and underlying mechanisms are not well understood yet. Here, total Se (Setotal) and its potential bioavailability, as represented by phosphate extractability (Sephosphate), were evaluated in top soils (0–15 cm) of cropland and woodland over two contrasting geological parent materials (i.e. limestone versus clasolite) in a Se-enriched region of southwest China. After about twenty years of conversion of land use from cropland to woodland, Setotal in soils significantly (P
更新日期：2020-10-01
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