Table 1. Geographic and geochemical parameters of the nine studied lakes on the Qinghai-Tibetan Plateau, China.
Sample ID | KLKL | EHL | QHL | TSL | GHL1 | GHL2 | XDCL | DBXL | CKL |
---|---|---|---|---|---|---|---|---|---|
GPS Location (N/E) | 37o18.7'/ | 36o34.1'/ | 36o38.0'/ | 37o11.6'/ | 36o58.1'/ | 37o7.8'/ | 37o28.8'/ | 37o28.8'/ | 36o45.0'/ |
96o54.1' | 100o44.3' | 100o6.9' | 96o53.3' | 100o35.9' | 97o46.9' | 95o26.2' | 95o26.2' | 99o4.8' | |
Salinity(g/L) | 0.6 | 0.7 | 12.9 | 30.1 | 30.6 | 83.6 | 159.6 | 307.2 | 324.8 |
pH | 8.8 | 9.4 | 9.1 | 8.8 | 8.9 | 8.4 | 8.4 | 7.0 | 7.8 |
TOC(%) | 5.1 | 0.3 | 1.6 | 3.2 | 1.2 | 5.6 | 0.2 | 0.4 | 1.9 |
Concentration of major ions (mg L−1) | |||||||||
K+ | 6.5 | 9.0 | 269.2 | 326.9 | 613.0 | 452.9 | 920.0 | 2163.0 | 2089.3 |
Na+ | 135.2 | 218.8 | 3993.0 | 8087.0 | 9384.0 | 26770.0 | 54691.0 | 77950.0 | 107460.3 |
Ca2+ | 38.5 | 20.0 | 17.7 | 32.4 | 22.8 | 392.0 | 625.0 | 1711.0 | 823.2 |
Mg2+ | 53.6 | 68.5 | 824.1 | 2107.0 | 1467.0 | 4097.0 | 2588.7 | 24700.0 | 9740.8 |
SO42− | 140.4 | 117.9 | 2188.0 | 6454.0 | 6058.0 | 10790.0 | 28735.2 | 4462.0 | 17099.8 |
Cl− | 206.2 | 231.1 | 5625.7 | 13129.5 | 13034.7 | 41059.4 | 72063.4 | 196231.9 | 187633.2 |
NO3− | 0.5 | 0.2 | 0.4 | 0.4 | 0.5 | 0.6 | 0.5 | 1.1 | 1.4 |
NH4+ | 1.0 | 1.2 | 1.0 | 0.8 | 0.6 | 0.5 | 0.6 | 0.4 | 0.4 |
KLKL: Keluke Lake; EHL: Erhai Lake; QHL:Qinghai Lake; TSL:Tuosu Lake; GHL1:Gahai Lake 1; GHL2: Gahai Lake 2; XCDL: Xiaochaidan Lake; DBXL: Dabuxun Lake; CKL: Chaka Lake.