| 汝溪河浮游硅藻功能群特征及其与环境因子相关性分析 |
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| 引用本文： | 向蓉,李巧玉,喻燚,张洪波,董聪聪,施军琼,吴忠兴.汝溪河浮游硅藻功能群特征及其与环境因子相关性分析[J].环境科学,2017,38(8):3290-3301. |
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| 作者姓名： | 向蓉 李巧玉 喻燚 张洪波 董聪聪 施军琼 吴忠兴 |
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| 作者单位： | 西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715,西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715,西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715,西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715,西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715,西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715,西南大学生命科学学院, 三峡库区生态环境教育部重点实验室, 重庆市三峡库区植物生态与资源重点实验室, 重庆 400715 |
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| 基金项目： | 中央高校基本科研业务费专项（XDJK2016C111）；西南大学博士基金项目（SWU110065） |
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| 摘 要： | 基于不同水文期特点,分别在平水期(2014年4月)、丰水期(2014年7月)、枯水期(2014年12月)对三峡库区支流汝溪河的浮游硅藻及理化参数进行采样监测,应用功能群分类和数理统计分析等手段,探讨汝溪河不同水文期浮游硅藻功能群特征及其与环境因子间的相互关系.结果表明:3个水文期,汝溪河共发现浮游硅藻功能群10个,分别为A、B、C、D、L_o、MP、P、T_B、X3、S1类群,其中种类最多的功能群是MP类群,数量最多的是D类群.多元逐步回归分析发现,影响平水期功能类群密度最重要的环境因子为总氮(TN);与丰水期功能群密度显著相关的环境因子为透明度(SD);浊度(Tur)、碱度和pH以及电导率则是影响枯水期功能群密度的主要环境因子.RDA分析结果显示,影响汝溪河浮游硅藻功能群多样性的主要环境因子含水温(WT)、电导率(Spc)、氧化还原电位(ORP)、溶解氧(DO)、硝态氮(NO_3~--N)等.因此,功能群能较好反映汝溪河的生境特点,而氮营养元素对汝溪河浮游植物功能群变化及水质的影响应引起关注.
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| 关 键 词： | 浮游硅藻 功能群 环境因子 汝溪河 三峡水库 |
| 收稿时间： | 2017/1/13 0:00:00 |
| 修稿时间： | 2017/3/3 0:00:00 |
Functional Group Characteristics of Planktonic Diatoms and Their Relationship with Environmental Factors in the Ruxi River |
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| XIANG Rong,LI Qiao-yu,YU Yi,ZHANG Hong-bo,DONG Cong-cong,SHI Jun-qiong and WU Zhong-xing.Functional Group Characteristics of Planktonic Diatoms and Their Relationship with Environmental Factors in the Ruxi River[J].Chinese Journal of Environmental Science,2017,38(8):3290-3301. |
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| Authors: | XIANG Rong LI Qiao-yu YU Yi ZHANG Hong-bo DONG Cong-cong SHI Jun-qiong and WU Zhong-xing |
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| Institution: | Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China,Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China,Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China,Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China,Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China,Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China and Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), Chongqing Key Laboratory of Plant Ecology and Resources Research in Three Gorges Reservoir Region, School of Life Sciences, Southwest University, Chongqing 400715, China |
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| Abstract: | |
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| Keywords: | planktonic diatoms functional groups environmental factors Ruxi River Three Gorges Reservoir |
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