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・ Soil in the United States
・ Soil inference system
・ Soil life
・ Soil liquefaction
・ Soil loss tolerance
・ Soil management
・ Soil map
・ Soil mark
・ Soil mechanics
・ Soil mesofauna
・ Soil microbiology
・ Soil Moisture Active Passive
・ Soil Moisture and Ocean Salinity
・ Soil moisture sensor
・ Soil moisture zone
Soil morphology
・ Soil nailing
・ Soil organic matter
・ Soil pH
・ Soil physics
・ Soil plant atmosphere continuum
・ Soil policy (Victoria, Australia)
・ Soil production function
・ Soil quality
・ Soil regeneration and climate change
・ Soil Research
・ Soil resilience
・ Soil resistivity
・ Soil respiration
・ Soil retrogression and degradation


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Soil morphology : ウィキペディア英語版
Soil morphology
Soil morphology is the field observable attributes of the soil within the various soil horizons and the description of the kind and arrangement of the horizons. C.F. Marbut championed reliance on soil morphology instead of on theories of pedogenesis for soil classification because theories of soil genesis are both ephemeral and dynamic.
The observable attributes ordinarily described in the field include the composition, form, soil structure and organization of the soil, color of the base soil and features such as mottling, distribution of roots and pores, evidence of translocated materials such as carbonates, iron, manganese, carbon and clay, and the consistence of the soil.
The observations are typically performed on a soil profile. A profile is a vertical cut, two-dimensional, in the soil and bounds one side of a pedon. The pedon is the smallest three-dimensional unit, but not less than 1 meter square on top, that captures the lateral range of variability.
==Micromorphology==
While soil micromorphology begins in the field with the routine and careful use of a 10x hand lens, much more can be described by careful description of thin sections made of the soil with the aid of a petrographic polarizing light microscope. The soil can be impregnated with an epoxy resin, but more commonly with a polyester resin (crystic 17449) and sliced and ground to 0.03 millimeter thickness and examined by passing light through the thin soil plasma.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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