Li Xiaodong, Zhao Wen, Zhao Zhenxing, Dong Shuanglin
Key Laboratory of Hydrobiology Liaoning Province's University, Dalian Fisheries University, Dalian, China.
Ying Yong Sheng Tai Xue Bao. 2006 Jul;17(7):1224-8.
This paper studied the storage and diurnal change of various organic carbon pools in two rotifer (Brachinus plicatilis) -culturing ponds with different models in Panjin Photosynthesis Fisheries Limited Company, Dawa County, Liaoning Province from May to June 2001. The results indicated that the mean storage of particulate organic carbon (POC) and dissolved organic carbon (DOC) in static water pond was 5.69 +/- 2.90 mg x L(-1) and 24.56 +/- 2.12 mg x L(-1), and that in current water pond was 9.61 +/- 3.17 mg x L(-1) and 24. 3 +/- 2.91 mg x L(-1), respectively. The ratio of total organic carbon (TOC), DOC and POC in current and static water ponds was 1:0.75: 0. 25 and 1:0.82:0.18, respectively. The pond with a high POC concentration was also with a high DOC content. The diurnal change of POC and DOC in current water pond was bigger than that in static water pond, i. e., the POC concentration in current water pond increased in daytime (from 5:00 to 17:00), while that in static water pond was more stable. The POC concentration in the two ponds was decreased from 15:00 to 23:00 but increased from 23:00 to next 5:00, and its peak time was 17:00 for current water pond and 5:00 for static water pond. The DOC/POC ratio in current water pond was increased gradually in daytime (from 5:00 to 17:00), while that in static water pond was decreased. The DOC/POC ratio in the two ponds was increased at night, and tended to dicline from 23:00 to next 5:00.
2001年5月至6月，本文对辽宁省大洼县盘锦光合渔业有限公司两个不同模式的轮虫（褶皱臂尾轮虫）养殖池塘中各种有机碳库的储存及日变化进行了研究。结果表明，静水池塘中颗粒有机碳（POC）和溶解有机碳（DOC）的平均储存量分别为5.69±2.90毫克/升和24.56±2.12毫克/升，流水池塘中分别为9.61±3.17毫克/升和24.3±2.91毫克/升。流水池塘和静水池塘中总有机碳（TOC）、DOC和POC的比例分别为1:0.75:0.25和1:0.82:0.18。POC浓度高的池塘，DOC含量也高。流水池塘中POC和DOC的日变化比静水池塘大，即流水池塘中POC浓度在白天（5:00至17:00）升高，而静水池塘中更稳定。两个池塘中POC浓度在15:00至23:00降低，但在23:00至次日5:00升高，其峰值时间流水池塘为17:00，静水池塘为5:00。流水池塘中DOC/POC比值在白天（5:00至17:00）逐渐升高，而静水池塘中则降低。两个池塘中DOC/POC比值在夜间升高，并在23:00至次日5:00趋于下降。
