Distribution Law of Soil Mineral Elements in Southern Ningxia

Chang Qingrui; Li Xinping; Lei Mei; Chi Haifeng

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Distribution Law of Soil Mineral Elements in Southern Ningxia

- Distribution Law of Soil Mineral Elements in Southern Ningxia
- Bulletin of Soiland Water Conservation Vol. 16, Issue 2, Pages: 7-10(1997)
- 作者机构：
  
  西北农业大学资环系, 陕西杨陵,712100
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：1997
- 稿件说明：
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Chang Qingrui, Li Xinping, Lei Mei, et al. Distribution Law of Soil Mineral Elements in Southern Ningxia[J]. Bulletin of Soiland Water Conservation, 1997, 16(2): 7-10.
DOI：

Chang Qingrui, Li Xinping, Lei Mei, et al. Distribution Law of Soil Mineral Elements in Southern Ningxia[J]. Bulletin of Soiland Water Conservation, 1997, 16(2): 7-10. DOI：

摘要

宁南地区土壤矿质元素的含量顺序为SiO

>Al

>CaO>Fe

MgO>K

O>MnO>Zn>Cu

其中硅、铝、铁、钛空间分布较均匀；钙、镁、钾变异较大、空间分布不均匀。硅、钛、铜、锌、锰为残积母质>洪冲积母质>黄土母质；铁、镁、钾为洪冲积母质>残积母质>黄土母质；铝为洪冲积母质>黄土母质>残积母质；钙为黄土母质最高，残积母质很低。从山地洪积扇中上游阶地中下游阶地，硅、铜、锌、锰逐渐减少；铝、镁、铁、钙、钾则不断增加

Abstract

The content sequence of soil mineral elements in southern Ningxia is SiO2>Al2O3>CaO>Fe2O3MgO>K2O>MnO>Zn>Cu.The space distribution of Si

Fe and Ti is relatively even.Ca

etc.have apparent variations and uneven space distribution.It shows that residual parent materialsdeluvial parent materialsloess parent materials in Si

Zn and Mn element content;alluvial parent materialsresidual parent materialsloess parent materials in regard to Fe

K；diluvial and alluvial parent materialsloess parent materialsresidual parent materials; as to Al

diluvial and alluvial materialsresidual materialsloess;and that Ca is highest in loess parent materials and lowest in residual parent materials.From mountain area to diluvial fan

to upper reaches terrace

to medium and lower reaches terrance

Mn element content decreases gradually but Al

K increases continually.

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