Table 1 The chemical properties of partially decomposed materials collected at various organic horizons in 3 topographic positions of the Yuanyang Lake ecosystem in Taiwan
Pedons | Soil type | Organic horizon | Depth (cm) | pH (H2O) | TCa(%) | TNb(%) | C/N ratio |
|---|---|---|---|---|---|---|---|
Summit | Albaquult | Oi | 8-10 | 3.7 | 35.2 | 1.4 | 25.1 |
Oe | 3-8 | 3.5 | 49.2 | 2.1 | 23.4 | ||
Oa | 0-3 | 3.5 | 49.2 | 2.2 | 22.3 | ||
Footslope | Dystrochrept | Oi | 11-15 | 3.8 | 54.2 | 1.8 | 30.1 |
Oe | 3-11 | 3.5 | 51.2 | 2.1 | 24.3 | ||
Oa | 0-3 | 3.3 | 47.7 | 2.3 | 20.7 | ||
Lakeshore | Histosol | Oi | 24-33 | 3.5 | 36.3 | 1.1 | 33.0 |
Oe | 11-24 | 3.4 | 18.7 | 0.6 | 31.1 | ||
Oa | 0-11 | 3.5 | 17.7 | 0.7 | 23.9 |