TABLE 1.
Selected biogeochemical characteristics of eutrophic (F1), transition (F4), and oligotrophic (U3) regions of WCA-2A during spring 2002a
| Field station | Moisture content (%) | TN (g/kg) | TC (g/kg) | TP (mg/kg) | TPi (mg/kg) | NH4-N (mg/kg) | TKN (mg/kg) | MBC (mg/kg) | Extractable TOC (mg/kg) |
|---|---|---|---|---|---|---|---|---|---|
| F1 | 92 (1.0) | 28.8 (2.1) | 445.8 (24) | 1,110 (352) | 366 (128) | 90 (13) | 463 (44) | 7,705 (1,534) | 2,404 (204) |
| F4 | 93 (1.0) | 25.3 (2.6) | 357.2 (10) | 767 (49) | 310 (72) | 107 (16) | 582 (46) | 8,933 (1,529) | 2,436 (284) |
| U3 | 93 (2.0) | 32.8 (2.8) | 230 (42) | 449 (161) | 221 (131) | 103 (33) | 548 (120) | 2,627 (128) | 1,973 (450) |
a
Values in parentheses are standard deviations of triplicate analyses. The content of different substances is expressed per kilogram (dry weight) of soil. TN, total nitrogen; TC, total carbon; TP, total phosphorus; TPi, total inorganic phosphorus; NH4-N, extractable ammonium; TKN, total Kjeldahl nitrogen; MBC, microbial biomass carbon; TOC, total organic carbon.