New development gained by the authors in paleosol study in recent years is introduced.Main content is as follow. Loess was yellow paleosols developed under cold arid climate,reason why soil horizons are not obvious is mainly weak soil formation and continuous dust deposition,the soil types to which loess belong are Brown soil,Sierozems and Loessial Sols.Clay film in which montmorillonite is main mineral in red paleosols was formed by living ...
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