Volume 25 Issue 6
Dec.  2008
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SONG Zhao-liang, ZHU Zhao-zhou, YANG Cheng, WU Yong-feng. Mobility and enrichment of manganese and phosphorus during limestone weathering in the Wujiang Catchments of southwestern China[J]. Journal of Zhejiang A&F University, 2008, 25(6): 705-710.
Citation: SONG Zhao-liang, ZHU Zhao-zhou, YANG Cheng, WU Yong-feng. Mobility and enrichment of manganese and phosphorus during limestone weathering in the Wujiang Catchments of southwestern China[J]. Journal of Zhejiang A&F University, 2008, 25(6): 705-710.

Mobility and enrichment of manganese and phosphorus during limestone weathering in the Wujiang Catchments of southwestern China

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  • Corresponding author: SONG Zhao-liang
  • Publish Date: 2008-12-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Mobility and enrichment of manganese and phosphorus during limestone weathering in the Wujiang Catchments of southwestern China

    Corresponding author: SONG Zhao-liang

Abstract: How to improve phyto-availability of mineral nutrients Mn and P in calcareous soils has already become an important problem in karst areas. The study selected 9 limestone weathering profiles from the Wujiang Catchments,and investigated the mobility and enrichment behavior of Mn and P during limestone weathering with methods of R-type cluster analysis and mass balance calculation. The purpose of the study is to offer scientific references for cycle regulation of mineral nutrients such as Mn and P in karst areas. The results showed that our calcareous soils were rich in Mn and P relative to upper continental crust (UCC),Guilin calcareous soils(TS and MS) and world soil(WS). The enrichment of Mn in our studied calcareous soils was a result of preferential leaching of other more soluble elements (e.g.,Ca) from the studied profiles and precipitation of supergene Mn in the lower part of the studied profiles. The enrichment of P in our studied calcareous soils was a result of preferential leaching of other more soluble elements such as Ca from the studied profiles. Our studied calcareous soils had lower pH values than those from MS,lower base cation contents than MS,WS and UCC implying that Mn and P in our studied calcareous soils have certain mobility. [Ch,4 fig. 1 tab. 23 ref.]

SONG Zhao-liang, ZHU Zhao-zhou, YANG Cheng, WU Yong-feng. Mobility and enrichment of manganese and phosphorus during limestone weathering in the Wujiang Catchments of southwestern China[J]. Journal of Zhejiang A&F University, 2008, 25(6): 705-710.
Citation: SONG Zhao-liang, ZHU Zhao-zhou, YANG Cheng, WU Yong-feng. Mobility and enrichment of manganese and phosphorus during limestone weathering in the Wujiang Catchments of southwestern China[J]. Journal of Zhejiang A&F University, 2008, 25(6): 705-710.

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