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

SONG Zhao-liang; ZHU Zhao-zhou; YANG Cheng; WU Yong-feng

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

1.
School of Environmental Sciences and Technology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;
2.
State Key Laboratory of Environmental Geochemistry，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，Guizhou，China;
3.
Tianjin Key Laboratory of Water Resources and Aquatic Environments，Tianjin Normal University，Tianjin 300387，China

More Information

Corresponding author: SONG Zhao-liang
Publish Date: 2008-12-20

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.］
- pedology,
- manganese（Mn）,
- phosphorus（P）,
- mobility and enrichment,
- limestone weathering,
- the Wujiang Catchments

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通讯作者: 陈斌, bchen63@163.com

1.
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

1. School of Environmental Sciences and Technology，Zhejiang Forestry College，Lin’an 311300，Zhejiang，China;

2. State Key Laboratory of Environmental Geochemistry，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，Guizhou，China;

3. Tianjin Key Laboratory of Water Resources and Aquatic Environments，Tianjin Normal University，Tianjin 300387，China

Corresponding author: SONG Zhao-liang

Publish Date: 2008-12-20

Key words:

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.］

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

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

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