Changes in the relative content of components of leaf litter of Ginkgo biloba at the surface during mulching (percentage of oven-dried sample).
| Dates of sampling | |||||||
|---|---|---|---|---|---|---|---|
| 12/15/99 | 2/15/00 | 4/15/00 | 6/15/00 | 8/15/00 | 10/15/00 | 12/25/00 | |
| Months of mulching | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
| Weight loss | 0 | 7.5 | 14.7 | 23.9 | 46.1 | 51.7 | 52.7 |
| 80% EtOH extractives | 33.2 | 31.2 | 30.9 | 24.8 | 15.7 | 10.5 | 9.8 |
| Water extractives | 6.0 | 5.7 | 5.6 | 4.9 | 2.8 | 1.1 | 1.0 |
| Total extractives | 39.2 | 31.2 | 30.9 | 24.8 | 15.7 | 10.5 | 9.8 |
| Rhamnose | 1.7 | 1.6 | 1.2 | 1.1 | 1.4 | 1.2 | 1.5 |
| Arabinose | 2.7 | 2.7 | 2.2 | 1.2 | 1.5 | 1.0 | 1.2 |
| Xylose | 1.6 | 1.7 | 1.3 | 1.1 | 1.8 | 0.8 | 0.6 |
| Mannose | 1.9 | 1.8 | 1.2 | 1.2 | 0.8 | 1.1 | 1.0 |
| Galactose | 2.0 | 2.1 | 1.8 | 1.6 | 1.4 | 1.1 | 0.9 |
| Glucose | 9.8 | 10.2 | 8.2 | 8.8 | 8.9 | 6.4 | 6.5 |
| Total neutral sugars | 19.7 | 20.0 | 16.0 | 15.0 | 15.9 | 11.5 | 11.7 |
| Uronic acid | 6.7 | 7.4 | 5.3 | 4.7 | 1.6 | 1.4 | 1.5 |
| Klason residues | 22.6 | 26.3 | 26.8 | 32.2 | 40.7 | 44.2 | 46.6 |
| Acid soluble lignin | 1.6 | 1.8 | 2.0 | 2.1 | 2.2 | 2.2 | 2.2 |
| Protein | 3.4 | 3.9 | 4.8 | 5.6 | 7.9 | 8.4 | 9.6 |
| Ash | 6.4 | 7.4 | 8.4 | 9.0 | 10.5 | 12.2 | 13.5 |
| Total | 99.6 | 97.9 | 94.1 | 93.5 | 94.5 | 90.5 | 94.9 |