Effect of Drying on Volcanic Ash Soils in Chile
1965
Schalscha, E. B. | Gonzalez, C. | Vergara, I. | Galindo, G. | Schatz, A.
Air drying produces significant irreversible changes in volcanic ash soils. Air-dried samples with clay texture in the field appear to have sandy texture according to laboratory analyses. Air-drying also markedly affects cation-exchange capacity, soluble P, and soluble Fe. The nature and extent of changes in the latter two properties vary with different methods of analysis. Air-drying decreases the pH slightly. These results show that mechanical and chemical analyses of volcanic ash soils more accurately indicate field conditions when samples contain moisture at field capacity.
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