Results 161 to 170 of about 364,548 (212)

Teaching soil morphology to introductory soil science students

Journal of Agronomic Education, 1988
ABSTRACTIntroductory soil science students should receive practical instruction in soil morphology because it can be a tool to assess soil limitations for various land uses. “Real soils” should be examined whenever possible. Soil cores collected from a toposequence are well‐suited for classroom instruction because the soils frequently exhibit a wide ...
M. J. Vepraskas, P. A. McDaniel, J. J. Camberato   +2 more
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Surface-water gley soils in Bangladesh: Environment, landforms and soil morphology

Geoderma, 1977
Abstract Most of Bangladesh is seasonally flooded or waterlogged, mainly by rain water. Surface-water grey soils are extensively developed on the seasonallywet landscapes. They are acid, hydromorphic soils with albic horizons containing less clay than the deeper horizons, and with a seasonally fluctuating pH in the surface horizon.
Brammer, H., Brinkman, R.
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Chapter 4 Soil morphology

1996
Publisher Summary Morphology is the most important feature used to differentiate Vertisols from other soil orders. The major morphological markers of Vertisols are linear and normal gilgai (micro-relief), cyclic horizons, surface cracking upon desiccation, and slickensides.
A.R. Mermut, G.S. Dasog, G.N. Dowuona
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Appalachian Mine Soil Morphology and Properties

Soil Science Society of America Journal, 2004
Surface coal mining and reclamation methods in the Appalachians have changed dramatically since the passage of the Surface Mining Control and Reclamation Act (SMCRA) of 1977 and subsequent improvements in mining and reclamation technology. In this study, 30 pre‐SMCRA mine soil profiles (4–20 yr old) were examined and sampled in 1980 and compared with ...
Kathryn C. Haering, W. Lee Daniels, John M. Galbraith   +2 more
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Fragipan Soils: Morphological Relationships

Soil Science Society of America Journal, 1964
Abstract Field descriptions and certain laboratory data for 17 soil profiles representing Bedford, Calloway, Dickson, Grenada, Henry, Mercer, and Tilsit series in Kentucky were obtained. All of the soils contain fragipan horizons.
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ACID SULPHATE SOILS: MORPHOLOGY AND PREDICTION

Journal of Soil Science, 1980
Summary Proposals are made for horizon designation of soils developed under mangrove vegetation and in polders in northern New Zealand. A model is presented for predicting the development of acid sulphate soils by field survey prior to reclamation.
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High-resolution continuous soil classification using morphological soil profile descriptions

Geoderma, 2001
Soil grid data were gathered from 156 points in the 30-ha Muizen forest (Ranst, Belgium). At each grid point, soil profiles were examined morphologically by augering to 120-cm depth. In the laboratory, pH(KCl) was determined on samples from every horizon. To allow numerical analyses, all the morphological attributes were given ordinal scores.
Kris Verheyen, Dries Adriaens, Martin Hermy, Seppe Deckers   +3 more
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Aquic conditions for Soil Taxonomy: concepts, soil morphology and micromorphology

1993
Abstract Vepraskas, M.J., Wilding, L.P. and Drees, L.R. 1994. Aquic conditions for Soil Taxonomy: concepts, soil morphology and micromorphology. In: A.J. Ringrose-Voase and G.S. Humphreys (Editors), Soil Micromorphology: Studies in Management and Genesis. Proc. IX Int.
M.J. Vepraskas, L.P. Wilding, L.R. Drees
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Soil morphology

2023
Phillip R. Owens, Zamir Libohova
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Using soil morphological attributes and soil structure in pedotransfer functions

2004
Publisher Summary This chapter reviews the contribution of soil morphology, including soil structure, to the derivation and improvement of pedotransfer functions (PTFs) that predict soil hydraulic properties in various soils around the world. It categorizes the approaches into qualitative or semiquantitative and quantitative methods.
A. Lilly, H. Lin
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