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|
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3
|
the breaking down of rock material
|
|
5
|
way of showing proportions of sand, silt and clay in the soil; used to determine soil texture
|
|
6
|
the ease with which air and water may pass through the soil
|
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7
|
the ease with which soil may be tilled and the timing of working the soil after a rain
|
|
8
|
a small section of soil extending from the surface to the depth of root penetration
|
|
9
|
the arrangement of the solid parts of the soil and of the pore space located between them
|
|
11
|
the process of creating soil from parent material
|
|
14
|
the density of the solid particles that collectively make up a soil sample
|
|
16
|
a layer of soil whose characteristics differ from the layers above and beneath
|
|
17
|
an indicator of soil compaction
|
|
|
|
|
|
|
1
|
the study of soil formation
|
|
2
|
the proportions of sand, silt, and clay
|
|
3
|
the ability of a soil to retain water for use by plants
|
|
4
|
smallest soil particle; contributes to soil texture
|
|
10
|
the organic component of soil
|
|
12
|
largest soil particles; contributes to soil texture
|
|
13
|
medium sized soil particles; contribute to soil texture
|
|
15
|
clumps of soil particles held together by moist clay, organic matter, and by organic compounds
|
|
|
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