Research Article
Sulfur Speciation in the Surface Sediments of Lakes from Different Regions, China: Characterization by S K-Edge XANES Spectroscopy
Table 1
Geographic and limnological features of the studied lakes [
18–
21].
| Parameters | Eastern China | Southwestern China | Western China | Taihu Lake | Hongfeng Lake | Dianchi Lake | Caohai Lake | Qinghai Lake |
| Positions | 30°05′–32°08′N, 119°08′–121°55′E | 26°25′–34′N, 106°20′–28′E | 24°40′–25°02′N, 102°36′°47′E | 26°49′–53′N, 104°12′–18′E | 36°32′–37°15′N, 99°36′–100°47′E | Surface area (km2) | 2338 | 56 | 306 | 20 | 4583 | Elevation (m) | 5 | 1235 | 1886 | 2171 | 3196 | Maximum depth (m) | 2.6 | 45.0 | 8.0 | 2.5 | 32.8 |
| Water | | | | | | pH | 8.36 | 8.40 | 7.37 | 8.78 | 9.35 | DO (mg/L) | 10.1 | 8.8 | 8.9 | 9.4 | ND | Salinity (g/L) | <1.0 | <1.0 | <1.0 | <1.0 | 12.5 | Sulfate (mg/L) | 100 | 80 | 60 | 40 | 2500 | Sediment | | | | | | Organic matter (%) | 6.5 | 5.4 | 6.5 | ND | 2.4 | TN (%) | ND | 0.31 | 0.33 | 1.38 | 0.50 | TP (%) | 0.08 | 0.16 | 0.15 | 0.07 | ND | Fe (%) | 2.65 | 5.98 | ND | ND | 2.50 |
| Climate type | Warm, humid | Warm, semihumid | Warm, semihumid | Warm, semihumid | Cool, semiarid |
| Deposition rate (cm/yr) | ND | 0.16 | 0.20 | 0.25 |
0.10 |
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