Some morphological and chemical aspects of peats applied to the characterization of histosols
Journal Article
·
· Soil Sci.; (United States)
Five peats--Mesic Humisol (Hemic Medisaprist), a Fibric Mesisol (Fibric Medihemist), a Typic Mesisol (Typic Medihemist), and two Humic Mesisols (Sapric Medihemists)--were selected to include differences in landform, botanical composition and degree of decomposition. Special attention was devoted to the nonhumic fraction, especially the particle-size fractions. The peats and peat fractions were characterized according to their chemical and morphological features, to gain information useful in peat differentiation and interpretation. The results indicate that the evaluation of the peats through the various parameters was in line with that obtained by the rubbed fiber content and the P/sub 2/O/sub 7/ index, two conventional and widely accepted criteria for peat characterization. However, the additional information gained through the micromorphological measurements, determinations on size fractions and examination of macrofossils could be used efficiently in differentiating poorly characterized peat soils (Mesisols) and in determining the behavior of peats under cultivation. It was concluded that micromorphological measurements, particle-size distribution, and macrofossil analysis of size fractions can be used in support of commonly used criteria for differentiating peats; in addition, they provide an essential basis for peat interpretation. (JMT)
- Research Organization:
- Land Resource Research Inst., Ottawa, Canada
- OSTI ID:
- 5847019
- Journal Information:
- Soil Sci.; (United States), Journal Name: Soil Sci.; (United States) Vol. 133:5; ISSN SOSCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
510200 -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580400* -- Geochemistry-- (-1989)
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CLASSIFICATION
DECOMPOSITION
ENERGY SOURCES
EVALUATION
FIBERS
FOSSIL FUELS
FOSSILS
FUELS
MORPHOLOGY
ORGANIC MATTER
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PEAT
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
SIZE
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
580400* -- Geochemistry-- (-1989)
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CLASSIFICATION
DECOMPOSITION
ENERGY SOURCES
EVALUATION
FIBERS
FOSSIL FUELS
FOSSILS
FUELS
MORPHOLOGY
ORGANIC MATTER
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PEAT
PHOSPHORUS COMPOUNDS
PHOSPHORUS OXIDES
SIZE