Distribution Law of Soil Mineral Elements in Southern Ningxia
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Distribution Law of Soil Mineral Elements in Southern Ningxia
Bulletin of Soiland Water ConservationVol. 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
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Published:1997
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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:
Distribution Law of Soil Mineral Elements in Southern Ningxia
The content sequence of soil mineral elements in southern Ningxia is SiO2>Al2O3>CaO>Fe2O3MgO>K2O>MnO>Zn>Cu.The space distribution of Si
A1
Fe and Ti is relatively even.Ca
Mg
K
etc.have apparent variations and uneven space distribution.It shows that residual parent materialsdeluvial parent materialsloess parent materials in Si
Ti
Cu
Zn and Mn element content;alluvial parent materialsresidual parent materialsloess parent materials in regard to Fe
Mg
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