Changes in sediment nutrient content in a subarctic lake subjected to lake fertilization
SUMMARY. 1. Phosphorus and nitrogen concentration in the surface sediment was analysed before, during and after fertilization of a small, stratified, subarctic lake. During stratification most (70%) of the added nutrients were deposited in the epilimnion sediment. 2. After 2 years of fertilization t...
| Published in: | Freshwater Biology |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1984
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1111/j.1365-2427.1984.tb00029.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2427.1984.tb00029.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2427.1984.tb00029.x |
| Summary: | SUMMARY. 1. Phosphorus and nitrogen concentration in the surface sediment was analysed before, during and after fertilization of a small, stratified, subarctic lake. During stratification most (70%) of the added nutrients were deposited in the epilimnion sediment. 2. After 2 years of fertilization there was a significant increase of both nutrients at all water depths, although values were 30–50% higher per square metre in the shallow areas. 3. Nutrient budget calculations based on the sediment analyses showed that 75% of the added phosphorus and 45% of the nitrogen were accumulated in the sediment after fertilization. |
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