香溪河库湾春季水华期间水体光学特征及相关分析
CHARACTERISTIC AND REGRESSION ANALYSIS OF THE PAR ATTENUATION COEFFICIENT IN XIANGXI BAY DURING SPRING BLOOM
-
摘要: 研究了香溪河库湾春季水华期间(2006年3月3日—4月16日)透明度水层可见光衰减系数KSd的时空特征,分析其与表层水叶绿素a浓度、DOC浓度和透明度Sd的相关关系。结果表明:香溪河库湾春季水华可见光衰减系数KSd时空变异很大;除峡口河段(样点X7—X8)外,可见光衰减系数KSd的变化特征取决于叶绿素a浓度和DOC浓度的时空变化,类似于深水湖泊;除峡口河段(样点X7—X8)外,香溪河库湾可见光衰减系数KSd和透明度之间呈反比的关系具有显著的相关,但它们之间的反比关系因水体叶绿素a和无机悬浮颗粒的空间差异而有所不同。Abstract: During the period of spring bloom from March 3 to April 16, 2005 in Xiangxi Bay, The vertical attenuation coefficients(KSd) of downward visible irradiance(PAR) and Secchi disc transparency(Sd)were measured with a scanning spectroradiometerand a 30 cm diameter black and white quadrant disc. Water chemistry variables such as chlorophyl-l a and dissolved organic carbon(DOC) weremeasured to determine the relative contribution of attenuat ing constituent in explaining the substantial variation inthe PAR attenuation coefficients KSd. Based on the in situ investigat ion data obtained, The underwater light field in Xiangxi Baywas characterised and the relationship between these two optical properties of the underwater was quantified with SPSS software.The analyses including application of empirical theories demonstrate that temporal patterns and inter-system differences in KSd and1/Sd during the period were well correlated for most of the sampling sites, except in the Xiakou reach, and the inverse relationshipthese two optical properties is influenced by chlorophyl-l a and inorganic tripton to some extent. Regression Analyses of thesePAR attenuation coefficient data and observations of Chla and DOC, documente that Chlorophyll a and Dissolved organic carbonare the important constituents responsible for spatial distribution and temporal variation of the PAR attenuation coefficients KSd inXiangxi Bay, except in the Xiakou raech. In addition to application of empirical and deterministic modeling frameworks, thoseresults demonstrate that the Xiangxi Bay in the optic characteristic during the period of spring bloom is similar to many deeplakes, and differ from many shallow lakes where increase of total suspended matter due to sediment resuspension results in decreaseof transparency and increase of beam attenuation coefficient.
-
-
[1] De Lange H J. The attenuat ion of ultraviolet and visible radiation inDut ch inland waters[J]. Aquatic Ecology, 2000, 34: 21-226
[2] Zhang Y L.Qin B Q, Chen W M, et al. Analysis on distribution andvariation of beam attenuation coefficient of Taihu Lake swaters [J].Advances In Water Science, 2003, 14(4): 447 453[张运林, 秦伯强, 陈伟民, 等. 太湖水体光学衰减系数的分布及其变化特征.水科学进展, 2003, 14(4): 447-453]
[3] Han B P,Han Z G,Fu X.Algal photosynthesis: mechanisms andmodels[M]. Beijing: Science Press, 2003[韩博平, 韩志国, 付翔. 藻类光合作用机理与模型. 北京: 科学出版社, 2003]
[4] Zhang Y L,Qin B Q, Chen W M, et al. Regression analysis of beamattenuation coefficient under water in Lake Taihu [J]. OceanologiaEtLimnologia Sinica, 2004, 35(3): 209-213[张运林, 秦伯强, 陈伟民, 等. 太湖水体光学衰减系数的特征及参数化. 海洋与湖沼,2004, 35(3): 209-213]
[5] Yosef Z, James J A,Monika T, et al. Absorption spectroscopy of co-lored dissolved organic carbon in Georgia(USA) rivers: the impact ofmolecular size distribut ion[J]. J. Limnol, 2003, 62(1): 41-46
[6] Rowena R, Clive H, et al. Penetrat ion of solar ultraviolet radiation intoNew Zealand lakes: influence of dissolved organic carbonandcat chment vegetation [J]. Limnology, 2001, 2: 79-89
[7] Zhang Y L,Qin B Q, Chen W M, et al. Study on optical properties ofLake Longgan [J]. Journal of Lake Sciences, 2005, 17(2): 114 119[张运林, 秦伯强, 陈伟民, 等. 龙感湖水体光学特性的观测. 湖泊科学, 2005, 17(2): 114-119]
[8] Laurion I, Vincent WF and Lean DRS. Underwat er ultraviolet radiation: Development of spectral models for Northern high latitude lakes[J]. Phot ochem Photobiol, 1997, 65: 107-114
[9] Feng, P, Steven W. Inorganic tript on in the Finger Lakes of NewYork: importance to optical characteristics[J]. Hydrobi ologia, 2005,543: 259-277
[10] Ye L, Li D F, Tang T, et al. Spatial distribution of water quality inXiangxi River,China [J]. Chinese Journal of Applied Ecology, 2003,14(11): 1959-1962[叶麟, 黎道丰, 唐涛, 等. 香溪河水质空间分布特性研究. 应用生态学报, 2003, 14(11): 1959 1962]
[11] Kuang Q J,Hu Z Y, ZhouG J, et al. Investigat ion on phytoplankton inXiangxi River wat ershed and the evaluation of its wat er quality [J].Journal of Wuhan Botani cal Research, 2004, 22(6): 507-513[况琪军, 胡征宇, 周广杰, 等. 香溪河流域浮游植物调查与水质评价.武汉植物学研究. 2004, 22(6): 507-513]
[12] Luo G Y, Liu G T, Wang W B. About the control of eutrophicat ionpol lution to the Three Gorges Reservoir [J]. Journal of ChongqingJianzhu University, 1999, 21(3): 1 4 [罗固源, 刘国涛, 王文标.三峡库区水环境富营养化污染及其控制对策的思考. 重庆建筑大学学报, 1999, 21(3): 1-4]
[13] Han Q W,Yang X Q. A review of the research work of reservoir sed-imentation in China[J]. Journal of China Institute of Water ResourcesandHydropower Research, 2003, 1(3): 169 178[韩其为, 杨小庆. 我国水库泥沙淤积研究综述. 中国水利水电科学研究院学报,2003, 1(3): 16-178]
[14] Huang X F, Chen W M, Cai Q M. Observat ion and analysis of lakeecology [M]. Beijing: China Standard Press, 2000[黄祥飞, 陈伟民,蔡启铭. 湖泊生态调查观测与分析. 北京: 中国标准化出版社,2000]
[15] Lu W D. SPSS for Windows Statistic Analysis(2nd edition) [M]. Be-ij ing: Publishing House of Electronics Industry, 2002 [卢纹岱. SPSSf or Windows 统计分析(第二版). 北京: 电子工业出版社, 2002]
[16] St ambler N, Lovengreen C, Tilzer M M. The underwat er light f ield inthe Bellingshausen and Amundsen seas (Antarctica). Hydrobiologia,1997, 344: 41-56
[17] Phlips E J, Aldridge F J, Schelske C L, et al. Relationships betweenlight availability, chlorophylla, and tript on in a large, shallow subtropical lake[J]. Limnol & oceanogr, 1995, 40: 416-421
[18] Batt in T J. Dissolved organic matter and its opt ical properties in ablackwater t ributary of the upper Orinoco river, Venezuela. OrgGeochem, 1998, 28(9): 561-569
[19] Li BH, Fu K C.The Study of Correlations between phytoplankton andthe transparency,wat er color in Southern Yellow Sea [J]. Journal ofoceanography of Huanghai & Bohai Seas, 1999, 17(3): 73-79[李宝华, 傅克忖. 南黄海浮游植物与水色透明度之间的相关关系的研究. 黄渤海海洋, 1999, 17(3): 73-79]
[20] Lorenzen MW. Phosphorus model and eutrophi cation[J]. Water PollutionMicrobi ology, 1978, 2: 31-50
[21] St even W, MaryGail P, Nicholas O, et al. Tripton, transparency andlight penetrat ion in seven New York reservoirs [J]. Hydrobiologia,2002, 468: 213-232
计量
- 文章访问数: 867
- HTML全文浏览量: 0
- PDF下载量: 493
下载: