春季昌江大型底栖无脊椎动物群落结构及功能摄食类群的空间分布
Spatial Distribution of Community Structure and Functional Feeding Groups of Macroinvertebrates of Changjiang River, a Tributary of Poyang Lake in Spring
查看参考文献22篇
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文摘
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于2009年4~5月采集鄱阳湖支流昌江的大型底栖无脊椎动物,研究其物种组成及其功能摄食类群的空间分布状况,并通过功能摄食类群组成评价昌江流域河流的生境状况.结果表明:四节蜉、宽基蜉、细蜉和多突癞皮虫为昌江的优势类群,其中四节蜉为昌江流域内4条支流共同的优势类群.冗余分析表明,昌江底栖动物主要受水体中总溶解固体和溶解氧的影响.收集者为昌江各支流主要的功能摄食类群;对昌江流域支流间功能摄食类群参数进行比较发现,指示物质循环方面的参数为昌江干流>北河>东河>大北河,指示物质的纵向输送能力方面的参数为大北河>东河>北河>昌江干流,指示沿岸物质的输入方面的参数为大北河>昌江干流>东河>北河.对各功能摄食类群参数和环境因子进行相关分析,流量的增加会加速河流中沿岸凋落物的输入,水温的升高会加速凋落物的分解,进而会增加河流中有机碳和其他溶解物质的含量. |
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其他语种文摘
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In order to explore the spatial distribution of species composition and functional feeding groups(FFGs) in the Changjiang River,a tributary of the Poyang Lake,and to assess their habitat conditions from the structure of FFGs,field investigations were carried out from April to May in 2009.The results showed that Baetis spp.,Choroterpes sp.,Caenis sp.,Slavila appendicu were the most dominant groups,and Baetis spp.was dominated in four main tributaries of the Changjiang River.Redundancy analysis revealed that the total dissolved solids and dissolved oxygen were the key factors determining the spatial distribution of macroinvertebrates;gather-collector was the dominant FFGs in the Changjiang River.Based on the comparison of the metrics of FFGs among different tributaries,it was found that these parameters indicated material cycling decreasing in the order of the main stream,Beihe River,Donghe River and Dabeihe River;longitudinal transport decreasing in the order of Dabeihe River,Donghe River,Beihe River,and the main stream;and lateral input decreasing in the order of Dabeihe River,the main stream,Donghe River and Beihe River.Correlation analysis indicated that the flow increased with the increase of litter inputs,and higher water temperature could accelerate the decomposition of litter and then increased the organic carbon in rivers as well as other dissolved substances. |
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来源
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应用与环境生物学报
,2012,18(2):163-169 【核心库】
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DOI
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10.3724/sp.j.1145.2012.00163
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关键词
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鄱阳湖流域
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大型底栖无脊椎动物
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群落结构
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空间分布
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功能摄食类群
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生境
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地址
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中国科学院水生生物研究所, 淡水生态与生物技术国家重点实验室, 武汉, 430072
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1006-687X |
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学科
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动物学 |
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基金
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国家自然科学基金项目
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国家水体污染控制与治理科技重大专项
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国家重点实验室专项经费项目资助
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文献收藏号
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CSCD:4527239
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