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引用本文:李方,徐京萍,何艳芬,张柏,刘殿伟,宋开山,王宗明,章光新.长春市石头口门水库颗粒物光谱吸收特性.湖泊科学,2009,21(2):280-287. DOI:10.18307/2009.0218
LI Fang,XU Jingping,HE Yanfen,ZHANG Bai,LIU Dianwei,SONG Kaishan,WANG Zongming,ZHANG Guangxin.Spectral absorption properties of particulate matters in the Shitoukoumen Reservoir of Changchun City. J. Lake Sci.2009,21(2):280-287. DOI:10.18307/2009.0218
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长春市石头口门水库颗粒物光谱吸收特性
李方1, 徐京萍1,2, 何艳芬3, 张柏1, 刘殿伟1, 宋开山1, 王宗明1, 章光新1
1.中国科学院东北地理与农业生态研究所, 长春 130012;2.中国科学院研究生院, 北京 100049;3.西北大学城市与资源学系, 西安 710069
摘要:
针对东北地区水体,以长春市重要水源地石头口门水库为例,分别于2008年6月13日和9月23日对该水库进行了水体颗粒物吸收特性研究.结果显示:2008年6月水库悬浮物含量高于9月,而叶绿素a含量低于9月;总颗粒物的吸收光谱曲线类似于非色素颗粒物,非色素颗粒物吸收对其的贡献明显大于浮游植物色素,9月份浮游植物吸收对其的贡献略有增加,吸收曲线在440nm左右能明显看到浮游植物引起的吸收峰;非色素颗粒物在440nm的吸收系数与悬浮物浓度存在较好的函数关系,而与叶绿素a浓度的相关性较弱;浮游植物色素吸收系数较低,色素组成中叶绿素a占主导地位,浮游植物在440nm和675nm的吸收系数与叶绿素a含量均存在较好的指数函数关系;6月浮游植物比吸收系数在440nm和750nm的均值分别为0.0483m2/mg和0.0263m2/mg,而9月份的均值分别为0.0337m2/mg和0.0187m2/mg.
关键词:  吸收特性  总悬浮颗粒物  非色素颗粒物  浮游植物  石头口门水库
DOI:10.18307/2009.0218
分类号:
基金项目:中国科学院“东北之春”项目、吉林省与中国科学院科技合作项目;国家自然科学基金项目(50609021);“多时相遥感影像自动相对辐射校正研究”(07JK411)项目联合资助
Spectral absorption properties of particulate matters in the Shitoukoumen Reservoir of Changchun City
LI Fang1, XU Jingping1,2, HE Yanfen3, ZHANG Bai1, LIU Dianwei1, SONG Kaishan1, WANG Zongming1, ZHANG Guangxin1
1.Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, P. R. China;2.Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China;3.Department of Urban and Resources Sciences, Northwest University, Xi'an 710069, P. R. China
Abstract:
The Shitoukoumen Reservoir, an urban water resource of Changchun City, was chose as a represent case of waters in Northeast of China, and then its spectral absorption properties of particulates were analyzed using the field data on June 13th and September 23rd 2008, respectively. Results showed that the content of total suspended matters (TSM) was higher but content of chlorophyll-a (Chl.a) was lower in June than that in September. The spectral curves of TSM were similar to that of tripton. Tripton contributed much more than phytoplankton in the absorption by TSM. In September, the contribution coming from phytoplankton slightly increased, which resulted in an obvious absorption peak around 440nm in the spectral absorption curves of TSM. Absorption by tripton at 440nm had a good relationship with TSM but not with Chl.a. The absorption of phytoplankton in Shitoukoumen Reservoir was generally low. Chl.a held the majority of the pigment composition and had good exponential relationships with its absorption at 440nm and 675nm, respectively. The average values of phytoplankton specific absorption coefficient at 440nm and 675nm in June were 0.0483m2/mg and 0.0263m2/mg respectively, while the data in September were 0.0337m2/mg and 0.0187m2/mg respectively.
Key words:  Spectral absorption properties  total suspended matters  tripton  phytoplankton  Shitoukoumen Reservoir
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