From: Variations of forest soil organic carbon and its influencing factors in east China
Geographic region | Effective soil depth (cm) | SOC content (g C kg−1) | Total N (g kg−1) | C/N ratio | Bulk density (g cm−3) | pH | Clay content (g kg−1) | Silt content (g kg−1) | Sand content (g kg−1) |
---|---|---|---|---|---|---|---|---|---|
North-eastern China | 78 ± 23 | 20.9 ± 38.3 | 1.99 ± 3.66 | 13.3 ± 14.8 | 1.29 ± 0.31 | 5.4 ± 0.6 | 528 ± 167 | 268 ± 64 | 204 ± 119 |
Middle-eastern China | 82 ± 26 | 12.2 ± 11.7 | 0.82 ± 0.98 | 17.9 ± 8.45 | 1.32 ± 0.19 | 7.5 ± 0.8 | 513 ± 157 | 304 ± 100 | 183 ± 111 |
South-eastern China | 84 ± 30 | 19.3 ± 26.8 | 0.97 ± 1.63 | 20.2 ± 7.98 | 1.28 ± 0.19 | 6.2 ± 0.7 | 444 ± 95 | 254 ± 123 | 302 ± 95 |
Total region | 82 ± 27 | 17.5 ± 25.5 | 1.28 ± 2.04 | 16.4 ± 8.73 | 1.26 ± 0.24 | 6.3 ± 1.2 | 493 ± 165 | 274 ± 89 | 233 ± 129 |