Abstract:To estimate the spatial variation characteristics of Taihu Lake phytoplankton and its influencing factors, samples were taken at 52 sampling sites during Apr. 2009. Then the total concentration of Chla and absorption coefficient of phytoplankton were measured the very day the samples were delivered to the lab. In the present research, results on pigment package effect by former researchers were taken to calculate its influence on specific absorption coefficients, the power of package effect of different areas in Taihu Lake were estimated, and the package effort revision was done to absorption coefficient of phytoplankton. Ratio of blue and red band of absorption coefficients (aph(440)/aph(675)) and standardization specific absorption spectrum were used to measure the influence on specific absorption coefficients by accessory pigment in different areas of Taihu Laik and different bands. Results showed that (1) specific absorption coefficients of phytoplankton in Taihu Lake vary more in short wave bands than that at 675 nm, specific absorption coefficients in Meiliang Bay are lower than in other areas. (2) Spatial variation of specific absorption coefficients in Taihu Lake is seriously influenced by package effect, and this influence occurred more seriously in Meiliang Bay than in other areas and more seriously in alongshore water body than in offshore water body. (3) Influence on specific absorption coefficients by accessory pigment is relatively weak, and mostly concentrates in short wave band, while auxiliary pigment influence is less at 675 nm, and in Meiliang Bay accessory pigment influence is less than in other areas, and its influences are less in alongshore water body than in offshore water body.
Key words:Taihu Lake;Phytoplankton;Absorption coefficients;Pigment specific coefficients;Package effect
施 坤,李云梅*,杨 煜,王彦飞,金 鑫,张 红,尹 斌 . 太湖水体浮游藻类吸收系数及影响因素分析 [J]. 光谱学与光谱分析, 2010, 30(08): 2223-2227.
SHI Kun, LI Yun-mei*, YANG Yu, WANG Yan-fei, JIN Xin, ZHANG Hong, YIN Bin . Analysis of Phytoplankton Absorption Coefficients and Their Effect Factors in Taihu Lake. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(08): 2223-2227.
[1] Bricaud A M, Bain A, More H. Journal of Geophysical research, 1995, 100(C7): 13321. [2] WANG Gui-fen, CAO Wen-xi, XU Da-zhi(王桂芬,曹文熙,许大志,等). Acta Oceanologica Sinica(海洋学报), 2007, 29(1): 38. [3] Cullen J J, Ciotti R F, Davis M R, et al. Limnology and Oceanography, 1997, 42: 1223. [4] Millie D F, Schofied O M, Kirkpatrick G J, et al.Limnology and Oceanography, 1997, 42: 1240. [5] Marra J, Tree C C, O’Reilly J E. Deep Sea Research, 2007, 54: 155. [6] ZHANG Bing, SHEN Qian, LI Jun-sheng(张 兵,申 茜,李俊生,等). J. Lake Sci.(湖泊科学), 2009, 21(2): 182. [7] Babin M, Stramski D, Ferrail G M, et al. Journal of Geophysical Research, 2003, 108(C7): 3211. [ 8 ] Lohrenz S E, Weldemann A D, Tuel M. J. Plankton Res., 2003, 25(1): 35. [9] Stuart V, Sathyendranath S, Platt T, et al. J. Plankton Res., 1998, 20: 187. [10] Le C F, Li Y M, Zha Y, et al. Hydrobiologia, 2009, 619: 27. [11] Nesom N B, Prezwlin B B, Bidigare R R. Mar. Ecol. Prog. Ser., 1993, 94: 217. [12] QIN Bo-qiang, HU Wei-ping, CHEN Wei-min(秦伯强,胡维平,陈伟民,著).The Process and Mechanism of Water Environment Evolvement in Taihu Lake(太湖水环境演化过程与机理). Beijing: Science Press(北京:科学出版社), 2004. 1. [13] SUN De-yong, LI Yun-mei, HUANG Jia-zhu, et al(孙德勇,李云梅,黄家柱,等). Acta Ecologica Sinica(生态学报), 2008, 28(2): 750. [14] Bricaud A, Claustre H, Ras J, et al. J. Geophys Res., 2004, 109: C11010. [15] Bidigare R R, Ondrusek M E, Morrow J H, et al. Proc. SPIE, 1990, 1302: 290. [16] Wozniak B, Dera J, Koblent-mishke Q I. Oceanologia., 1992, 33: 5. [17] Braocio-leon O A, Ondrusek M E, Morrow J H, et al. Journal of Oceanography, 1990, 46: 873. [18] Mercado J M, Ramire T, Corte D. Journal of Marine Systems. doi: 10.1016/j.jmarsys., 2007. 05. 009. [19] Falkowski P G, Laroche J. Journal of Applied Phyology, 1991, 27: 8. [20] Cao W X, Yang Y Z , Liu S, et al. Progress in Natural Science, 2005, 15(4): 342. [21] Kiefer D A, Soo Hoo J B. Limnol.Oceanogr., 1982, 27(3): 492. [22] Kana T M, Glibert P M, Goericke R, et al. Limnol. Oceanogr., 1988, 33: 1 623. [23] Hoepffner N, Sathyendranath S. Mar. Ecol. Prog. Ser., 1991, 73: 11. [24] ZHAO Qiao-hua, QIN Bo-qiang(赵巧华,秦伯强). China Envirmental Scince(中国环境科学), 2008, 28(4): 289. [25] Harimino T, Ishiza K A J, Tsuda R. Journal of Oceanography, 1999, 55: 667. [26] Pupouy C, Neveux J, Andre J M. Deep Sea Res.(Ⅱ), 1998, 44: 1881.