T
T. D. Thorson
Researcher at United States Department of Agriculture
Publications - 3
Citations - 41
T. D. Thorson is an academic researcher from United States Department of Agriculture. The author has contributed to research in topics: USDA soil taxonomy & Soil horizon. The author has an hindex of 2, co-authored 3 publications receiving 38 citations.
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Journal ArticleDOI
Andic soils of the inland Pacific Northwest, USA : Properties and ecological significance
Paul A. McDaniel,Michael A. Wilson,R. Burt,D. A. Lammers,T. D. Thorson,C. L. Mcgrath,N. Peterson +6 more
TL;DR: In this paper, the authors examined ecologically important properties of these tephra-influenced soils and found that a reduced pool of secondary Al may be limiting allophane formation in soil horizons with less Tephra influence.
Journal ArticleDOI
Isotic Mineralogy: Criteria Review And Application In Blue Mountains, Oregon
Michael A. Wilson,R. Burt,R. J. Ottersberg,D. A. Lammers,T. D. Thorson,R. W. Langridge,A. E. Kreger +6 more
TL;DR: In this paper, a study of 56 pedons in the Blue Mountains physiographic province of eastern Oregon examines isotic and andic properties of soils with the following objectives: (i) review theory and background related to the current criteria for the isotic class; (ii) examine these criteria on selected pedons and (iii) discuss the current approach to the use of the Isotic family classification in this geographic region.
Journal ArticleDOI
The Isotic Mineralogy Class of Soil Taxonomy: Issues and Problems
TL;DR: The isotic mineralogy class was added to U.S. soil taxonomy with the distribution of Issue No. 18 of the National Soil Taxonomy Handbook by the Natural Resources Conservation Service (NRCS) on March 9, 1996 as mentioned in this paper.