Incorporation of Organic Matter Into the A Horizon of Some Wisconsin Soils Under Native VegetationUniversity of Wisconsin--Madison, 1963 - 412 pages |
Contents
REVIEW OF LITERATURE | 3 |
Definitions of Some Organic Horizons of Forest Soils | 6 |
Seasonal Changes in Dry Weight of Fallen Leaves | 11 |
30 other sections not shown
Common terms and phrases
A₁ A1 horizon Abrahams woods ash litter average big bluestem Bocock burrows of Lumbricus centimeters clipped coarse mull cradle-knolls Crossection decomposition diameter earthworm casts earthworm populations earthworms Factor feet forest litter forest soil frozen soil gains Gley soil humus humus layer ice layers inches incorporation of organic Indian grass leaf litter Lumbricus terrestris Madison maple material Menominee County middens mineral soil mulch needle ice nitrogen nitrogen content Noe woods Norrie Hill November October organic matter percent period petioles pine pit to mound plant Podzolic soils point frame pounds per acre prairie plots prairie sites prairie vegetation quadrats quarter method roots sampling point seed stalks showed silt loam soils slope small scale relief Soil Depth soil genesis soil genesis plots soil horizon soil nitrogen soil samples soil surface Subsoil Subsoil thick tons per acre total nitrogen transect trees twigs undisturbed plot University of Wisconsin vertical Wisconsin Arboretum worms