| Wu JlNPING,F. A. WHITNEY,C. S. WONG. 1986. MEASUREMENT OF PRIMARY PRODUCTION IN AN ENCLOSED WATER COLUMN. Acta Oceanologica Sinica, (4):584－592 |
| MEASUREMENT OF PRIMARY PRODUCTION IN AN ENCLOSED WATER COLUMN |
| MEASUREMENT OF PRIMARY PRODUCTION IN AN ENCLOSED WATER COLUMN |
| Received:September 15, 1985 Revised:February 10, 1986 |
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| Abstract: |
| A CEE (2.5 m by 16 m) has been used to study the budget of organic production by measuring the changes in POC/N, oxygen and 14CO2 uptake through three-week period. 14C primary production measurements were conducted with 4-hours and 24-hours incubation periods, and with size fractionation. Different types and sizes of bottle effects were examined. Results showed that the oxygen method production was highest, followed by the 14CO2 uptake method, and POC gain showed the lowest. The value of PQ should be more than 1.7. The ratio of 4-hour incubation to 24-hour incubation was 2.42±0.22, indicating that net daily production is equal to 9.7±0.9 h of illuminated growth. Different types and sizes of bottles had little effect on primary production. |
| 中文摘要: |
| A CEE (2.5 m by 16 m) has been used to study the budget of organic production by measuring the changes in POC/N, oxygen and 14CO2 uptake through three-week period. 14C primary production measurements were conducted with 4-hours and 24-hours incubation periods, and with size fractionation. Different types and sizes of bottle effects were examined. Results showed that the oxygen method production was highest, followed by the 14CO2 uptake method, and POC gain showed the lowest. The value of PQ should be more than 1.7. The ratio of 4-hour incubation to 24-hour incubation was 2.42±0.22, indicating that net daily production is equal to 9.7±0.9 h of illuminated growth. Different types and sizes of bottles had little effect on primary production. |
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