Soil Biology & EcologyUnit 2.3 | Part 2 – 121SIMPLE HEMI-
PROTEINS FAT S CARBOS CELLULOSE CELLULOSE LI GNIN ASH
Oak leaf (young) 9 8 22 13 16 21 6
Oak leaf (old) 3 4 15 16 18 30 5
Pine needle 2 24 7 19 16 23 2
Grass leaf 2 2 13 24 33 14 0
Corn stem 1 2 15 18 30 11 8
Wood 0 4 2 22 47 22 1
Horse manure 7 2 5 24 28 14 9
Bacteria 50–60 10–35 5–30 4–32 0 0 5–15
Fungi 14–52 1–42 8–60 2–15 0 0 5–12
Earthworm 54–72 2–17 11–17 0 0 0 9–23
Arthropods 38–50 13–26 14–31 5–9 0 0 0
Appendix 1: Major Organic Components of Typical
Decomposer Food Sources
Appendix 1: Major Organic Components of Decomposer Food Sources