Incorporation of Organic Matter Into the A Horizon of Some Wisconsin Soils Under Native VegetationUniversity of Wisconsin--Madison, 1963 - 412 pages |
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Page 2
... ( A1 ) overlying a bleached layer ( A2 ) and strongly developed clayey subsoil ... horizon . This study is generally concerned with natural processes of ... horizon were measured . Earthworms , particularly the species Lumbricus terrestris ...
... ( A1 ) overlying a bleached layer ( A2 ) and strongly developed clayey subsoil ... horizon . This study is generally concerned with natural processes of ... horizon were measured . Earthworms , particularly the species Lumbricus terrestris ...
Page 15
... A1 horizon . Birch and Clark ( 1953 ) , in their review of the literature relating to forest soil as an ecological community , made special reference to the soil fauna including earthworms . Thorp and co - workers ( 1959 ) stated in ...
... A1 horizon . Birch and Clark ( 1953 ) , in their review of the literature relating to forest soil as an ecological community , made special reference to the soil fauna including earthworms . Thorp and co - workers ( 1959 ) stated in ...
Page 56
... horizon ( A1 ) . Twigs and bark with an equivalent diameter of more than 3/4 inch were excluded from all A and litter data . " Wood " in litter refers to non - leafy organic debris with an equivalent diameter less than 3/4 inch . In ...
... horizon ( A1 ) . Twigs and bark with an equivalent diameter of more than 3/4 inch were excluded from all A and litter data . " Wood " in litter refers to non - leafy organic debris with an equivalent diameter less than 3/4 inch . In ...
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