Table 1.4 - Estimates of organic matter and carbon on the forest floor1 by region and forest type
Region Forest type Organic matter2 Carbon3
(Kg/ha) (Lbs/ac)
Southeast Pines 20,026 10,361
Oak-pine 15,132 7,829
Oak-hickory 10,237 5,296
Bottomland hardwood 11,480 5,939
South Central Pines 20,026 10,361
Oak-pine 16,375 8,472
Oak-hickory 12,723 6,582
Bottomland hardwood 11,480 5,939
Northeast and
Mid-Atlantic
Pines 44,574 23,061
Spruce-fir 44,693 23,122
Hardwoods 32,207 16,663
North Central
and Central
Pines 44,574 23,061
Spruce-fir 44,693 23,122
Oak-hickory and
Bottomland hardwood
23,282 12,045
Maple-beech and Aspen-birch 32,207 16,663
Rocky Mountain and
Pacific Coast
Douglas-fir, Redwoods,
Larch and Ponderosa pine
44,574 23,061
Fir-spruce 88,520 45,797
Lodgepole pine 25,922 13,411
Hemlock-Sitka spruce 27,490 14,222
Hardwoods 32,207 16,663

1 All dead organic matter above the mineral soil horizon, including litter, humus and other woody debris (exludes standing dead trees).
2 Most entries from Vogt and others (1986), based on summaries of ecological studies grouped by broad forest ecosystem (e.g., warm temperate deciduous).
3 Carbon (lbs/ac) = organic matter (kg/ha) x .58 (percent carbon) x .892.