Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Transport of octanol soluble carbon and dissolved organic carbon through the soil/water interface of the HUMEX lake
AbstractThe transport of dissolved organic carbon (DOC) and octanol soluble carbon (OSC) through the soil/water interface was studied at four hydraulic vents and four nonvents of the HUMEX experimental lake. These studies were performed during summer 1990 (pre-treatment condition) and 1991 (post-treatment condition). The pH of the water coming from the hydraulic vents was on average 0.2–0.4 units lower than the pH of the lake water on the acid treated side of the lake. This difference was less on the control side. The DOC concentration was higher in the discharged water (12–31 mg/L) than in the lake water (5–10 mg/L), the vents on the acidified side having concentrations about two times the vents on the control side. Octanol soluble carbon increased on average from 46–104 μg/L in the vents on the acid treated side of the lake after the first year of acid treatment, and was significantly higher than in the lake itself. There was no significant difference in OSC between lake water, nonvents, and the vents on the control side of the lake, nor was there any significant difference between 90 and 91 at these locations. The OSC fraction of the total DOC pool was higher in the lake (0.58%) than in the vents (0.24%).
Transport of octanol soluble carbon and dissolved organic carbon through the soil/water interface of the HUMEX lake
AbstractThe transport of dissolved organic carbon (DOC) and octanol soluble carbon (OSC) through the soil/water interface was studied at four hydraulic vents and four nonvents of the HUMEX experimental lake. These studies were performed during summer 1990 (pre-treatment condition) and 1991 (post-treatment condition). The pH of the water coming from the hydraulic vents was on average 0.2–0.4 units lower than the pH of the lake water on the acid treated side of the lake. This difference was less on the control side. The DOC concentration was higher in the discharged water (12–31 mg/L) than in the lake water (5–10 mg/L), the vents on the acidified side having concentrations about two times the vents on the control side. Octanol soluble carbon increased on average from 46–104 μg/L in the vents on the acid treated side of the lake after the first year of acid treatment, and was significantly higher than in the lake itself. There was no significant difference in OSC between lake water, nonvents, and the vents on the control side of the lake, nor was there any significant difference between 90 and 91 at these locations. The OSC fraction of the total DOC pool was higher in the lake (0.58%) than in the vents (0.24%).
Transport of octanol soluble carbon and dissolved organic carbon through the soil/water interface of the HUMEX lake
Kullberg, Anders (Autor:in) / Petersen, Robert C. Jr. (Autor:in) / Hargeby, Anders (Autor:in) / Svensson, Marie (Autor:in)
Environmental International ; 18 ; 631-636
02.09.1992
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Soil-water interactions at the HUMEX Lake Skjervatjern
| Elsevier | 1992
Organic carbon fractionation applied to lake- and soilwater at the HUMEX site
| Online Contents | 1995