不同风浪条件下太湖梅梁湾光合有效辐射的衰减

应用生态学报 ›› 2005, Vol. 16 ›› Issue (6): 1133-1137.

不同风浪条件下太湖梅梁湾光合有效辐射的衰减

张运林^1,2, 秦伯强¹, 陈伟民¹, 胡维平¹, 高光¹, 朱广伟¹, 罗潋葱¹

1. 中国科学院南京地理与湖泊研究所, 南京 210008;中国科学院研究生院, 北京 100039;
2. 中国科学院研究生院, 北京 100039

收稿日期:2004-08-08 修回日期:2004-11-15 出版日期:2005-06-15 发布日期:2005-06-15
通讯作者: 秦伯强
基金资助:
中国科学院知识创新工程重大项目(KZCX1-SW-12)、中国科学院领域前沿项目(CXNIGLAS-A02-014)和国家自然科学基金资助项目(40203007).

Attenuation of photosynthetically available radiation (PAR) in Meiliang Bay under different winds and waves

ZHANG Yunlin^1,2, QIN Boqiang¹, CHEN Weimin¹, HU Weiping¹, GAO Guang¹, ZHU Guangwei¹, LUO Liancong ¹

1. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Received:2004-08-08 Revised:2004-11-15 Online:2005-06-15 Published:2005-06-15

摘要/Abstract

摘要： 基于2003年7月12～17日在太湖梅梁湾进行的连续6d原位水下光场观测资料,分析了不同风浪条件下光合有效辐射(PAR)的衰减和真光层深度,探讨了影响水下光合有效辐射的主导因子.结果表明,整个观测期间向下PAR衰减系数为2.63～4.71·m^-1(均值为3.63±0.47·m^-1),对应的真光层深度为0.98～1.75m(均值为1.29±0.18m),显示1.5m以下深度浮游植物、沉水植物基本上无法获取足够的太阳光能进行光合作用.从小风浪到中风浪、大风浪向下PAR衰减系数分别是2.63、3.72和4.37·m^-1,衰减系数分别增加了41%、66%.透明度、PAR衰减系数、真光层深度与悬浮物浓度存在显著性线性相关,并且与悬浮物中无机颗粒物相关性最好,而与叶绿素a、脱镁叶绿素及溶解性有机碳相关性很低.多元逐步线性回归表明,叶绿素a和溶解性有机碳最先被剔除方程,说明在梅梁湾由于风浪扰动引起悬浮物浓度的改变是影响水下光场的主导因素.

关键词: 梅梁湾, 光合有效辐射(PAR), 悬浮物, 衰减系数, 真光层深度

Abstract: Based on the successive underwater irradiance measurement in situ from Jul.12 to 17 in 2003,the attenuation of photosynthetically available radiation (PAR) and euphotic depth in Meiliang Bay were analyzed under different winds and waves.The results showed that the downward PAR attenuation coefficients ranged from 2.63 to 4.7穖^-1,with an average of 3.63?0.47穖^-1,and the corresponding euphotic depth ranged from 0.98 to 1.75 m,with an average of 1.29?0.18 m,which demonstrated that phytoplankton and macrophyte could not grow below 1.5 m due to the lack of adequate solar radiation.The total suspended solids resulted from wind and wave increased the attenuation of light,with the downward attenuation coefficients of PAR being 2.63,3.72 and 4.37穖^-1 under small,medium and large wind and wave,respectively.Significant linear correlations were found between transparence,PAR attenuation coefficient,euphotic depth and total suspended solid,especially inorganic suspended solid,while chlorophyll a was the most nonsignificant light attenuator.Multiple stepwise linear regressions showed that inorganic suspended solid was the most important light attenuator dominating the light attenuation in wind-exposed Meiliang Bay.

Key words: Meiliang Bay, Photosynthetically available radiation (PAR), Suspended solid, Diffuse attenuation coefficient, Euphotic depth

中图分类号:

P733.3

张运林, 秦伯强, 陈伟民, 胡维平, 高光, 朱广伟, 罗潋葱. 不同风浪条件下太湖梅梁湾光合有效辐射的衰减[J]. 应用生态学报, 2005, 16(6): 1133-1137.

ZHANG Yunlin, QIN Boqiang, CHEN Weimin, HU Weiping, GAO Guang, ZHU Guangwei, LUO Liancong . Attenuation of photosynthetically available radiation (PAR) in Meiliang Bay under different winds and waves[J]. Chinese Journal of Applied Ecology, 2005, 16(6): 1133-1137.

参考文献

[1] Bengtsson L, Hellstrom T. 1992. Wind induced resuspension in a shallow lake. Hydrobiologia, 241:163～ 172
[2] Blom G, van Duin EHS, Lijklema L. 1994. Sediment resuspension and light conditions in some shallow Dutch lakes. Water Sci Technol, 30: 243 ～ 252
[3] Blom G, van Duin EHS, Aalderink RH, et al. 1992. Modeling sediment transport in shallow lakes- Interactions between sediment transport and sediment composition. Hydrobiologia, 235/236:153～166
[4] Buiteveld H. 1995. A model for calculation of diffuse light attenuation (PAR) and Secchi depth. Neth J Aqua Ecol, 29:55～65
[5] Dieter CD. 1990. The importance of emergent vegetation in reducing sediment resuspension in wetlands. J Freshwater Ecol, 5: 467～473
[6] DiToro DM. 1978. Optics of turbid estuarine waters: Approximations and applications. Water Res, 12:1059～ 1068
[7] Doyle RD, Smart RM. 2001. Impacts of water column turbidity on the survival and growth of Vallisneria americana winter buds and seedlings. Lake Res Man, 17 (1): 17～ 28
[8] Havens KE. 2003. Submerged aquatic vegetation correlations with depth and light attenuatingmaterials in a shallow subtropical lake.Hydrobiologia, 493:173 ～ 186
[9] Hellstrom T. 1991. The effect of resuspension on algal production in a shallow lake. Hydrobiologia, 213:183～ 190
[10] James RT, Martin J, Wool T, et al. 1997. A sediment resuspension and water quality model of Lake Okeechobee. J Am Water Resour Ass, 33: 661 ～ 680
[11] James WF, Barko JW. 1994. Macrophyte influences on sediment resuspension and export in a shallow lake impoundment. Lake Res Man, 10(2): 95～ 102
[12] James WF, Best EP, Barko JW. 2004. Sediment resuspension and light attenuation in Peoria Lake: Can macrophyte improve water quality in this shallow system? Hydrobiologia, 515:193～201
[13] Kirk JTO. 1994. Light and Photosynthesis in Aquatic Ecosystem.Cambridge. Britain: Cambridge University Press. 47～144
[14] Li X-N(李肖娜), Zhou W-H(周伟华), Liu S-M(刘素美), et al.2003. Sediment chlorophyll in HAB (Harmful Algal Bloom) area of East China Sea. Chin J Appl Ecol (应用生态学报), 14 (7): 1 102～ 1106(in Chinese)
[15] Phlips EJ, Aldridge FJ, Schelske CL, et al. 1995. Relationships between light availability, chlorophyll a, and tripton in a large, shallow subtropical lake. Limnol Oceanog, 40(2) :416～421
[16] Phlips EJ, Lynch TC, Badylak S. 1995. Chlorophyll a, tripton, color, and light availability in a shallow tropical inner-shelf lagoon,Florida Bay, USA. Mar Ecol Prog Ser, 127: 223 ～ 234
[17] Pierson DC, Markensten H, Strombeck N. 2003. Long and short term variations in suspended particulate material: The influence on light available to the phytoplankton community. Hydrobiologia,494: 299～ 304
[18] Qin B-Q(秦伯强), Hu W-P(胡维平), Chen W-M(陈伟民).2004. Process and Mechanism of Environment Changes of the Taihu Lake. Beijing: Science Press. (in Chinese)
[19] Qin BQ, Hu WP, Gao G, et al. 2004. Dynamics of sediment resuspension and the conceptual schema of nutrient release in the large shallow Lake Taihu, China. Chin Sci Bull, 49 (1): 54～ 64
[20] Rae RR, Howard-Williams C, Hawes I, et al. 2001. Penetration of solar ultraviolet radiation into New Zealand lakes: Influence of dissolved organic carbon and catchments vegetation. Limnology, 2:79～89
[21] Somlyody L, Koncsos L. 1991. Influence of sediment resuspension on the light conditions and algal growth in Lake Balaton. Ecol Mod, 57:173～ 192
[22] Sondergaard M, Kristensen P, Jeppesen E. 1992. Phosphorus release from resuspended sediment in the shallow and wind-exposed Lake Arreso, Demark. Hydrobiologia, 228: 91～ 99
[23] Van Duin EHS, Blom G, Lijklema L, et al. 1992. Aspects of modeling sediment transport and light conditions in Lake Marken. Hydrobiologia, 235/236:167～ 176
[24] Van Duin EHS, Blom G, Los FJ, et al. 2001. Modeling underwater light climate in relation to sedimentation, resuspension, water quality and autotrophic growth. Hydrobiologia, 444: 25 ～ 42
[25] Voros L, Callieri C, Balogh KV, et al. 1998. Freshwater picocyanobacteria along atrophic gradient and light quality range. Hydrobiologia, 369/370:117～ 125
[26] Wu N-W(吴乃薇),Bian W-J(边文冀),Yao H-L(姚宏禄).1992.Energy conversion efficiency of pond ecosystem cultivated mainly with black carp.Chin J Appl Ecol(应用生态学报),3(4):333～338(in Chinese)
[27] Yang D-T(杨顶田),Chen W-M(陈伟民),Jiang J(江晶),et al.2003.Effects of algal bloom on N,P and K contents in Meiiang Bay of Taihu Lake.Chin J Appl Ecol(应用生态学报),14(6):969～972(in Chinese)
[28] Zhang Y-L(张运林),Qin B-Q(秦伯强),Chen W-M(陈伟民),et al.2004.A study on total suspended matter in Lake Taihu.Resour Environ Yangtze Basin(长江流域资源与环境),13(3):266～271(in Chinese)
[29] Zhang Y-L(张运林),Qin B-Q(秦伯强),Chen W-M(陈伟民),et al.2004.Regression analysis of beam attenuation coefficient underwaterin Lake Taihu.Oceanog Limnol(海洋与湖沼),35(3):209～214(in Chinese)
[30] Zhang Y-L(张运林),Qin B-Q(秦伯强),Chan W-M(陈伟民).2004.Modeling experimental study of underwaterlight climate and effect mechanism.Prog Nat Sci(自然科学进展),14(7):792～798(in Chinese)
[31] Zhao W(赵文),Dong S-L(董双林),Zhang Z-Q(张兆琪),et al.2003.Daily change of primary productivity of phytoplankton in saline alkalie ponds.Chin J Appl Ecol(应用生态学报),14(2):234～236(in Chinese)
[32] Zhou W-H(周伟华),Huo W-Y(霍文毅),Yuan X-C(袁翔城),et al.2003.Distribution features of chlorophyll a and primary productivity in high frequency area of red tide in East China Sea during Spring.Chin J Appl Ecol(应用生态学报),14(7):1055～1059(in Chinese)