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Filtering by: Creator Rojanasoonthon, Santhad

State of weathering of some upland soils in the Alsea Basin, Oregon

Creator:

Rojanasoonthon, Santhad

Abstract:

Mineralogical analysis of 3 upland soil profiles over Tyee parent rock from the Alsea Basin Area, Oregon showed clear differences among the 4 soil series represented. Soils from the area of higher precipitation (over 80 inches, approximately) had no montmorillonite, lower base saturation and cation exchange capacity, but no lower...

Resource Type:

Masters Thesis
Morphology and genesis of Gray Podzolic soils in Thailand

Creator:

Rojanasoonthon, Santhad

Abstract:

Nine Gray Podzolic soils from different physiographic regions of Thailand were studied to determine their characteristics and genesis in relation to their parent materials, land form, pedogenic environment, classification and management. The clay was characterized by X-ray diffraction and standard chemical and physical analyses were performed. Mineralogy of the light...

Resource Type:

Dissertation