| 三峡库区支流底栖动物群落结构研究 |
| Study on Community Structure of Macro-invertebrates in Tributaries of Three Gorges Reservoir |
| 投稿时间：2011-02-28 修订日期：2011-05-01 |
| DOI： |
| 中文关键词:三峡库区 底栖动物 物种多样性 相似度 |
| 英文关键词:Three Gorges Reservoir macro-invertebrates biodiversity similarity |
| 基金项目:国家自然科学基金专项基金（５１０５１００３）；国家重大水专项（２００９ＺＸ０７５２８ ００３）资助。 |
|
| 摘要点击次数: 2892 |
| 全文下载次数: 2864 |
| 中文摘要: |
| 2010年4月对三峡库区26条主要支流的底栖动物进行了采集,经鉴定共检出97种;其中,水生昆虫78种,软体动物10种,寡毛纲6种。常见种为蜉蝣科(Ephemeridae)、小蜉科(Ephemerellidae)、四节蜉属(Baetis)、细蜉属(Caenis)、宽基蜉属(Choroterpes)、扁蚴蜉属(Ecdyonurus)稚虫及直突摇蚊属(Orthocladius)、斑特突摇蚊属(Thienemanimyia)幼虫,平均密度673.22个/m2,平均生物量9.9398g/m2。MDS分析表明,御临河、龙溪河、长滩溪和嘉陵江站点明显偏离其他22条河流;种类组成聚类分析表明,抱龙河和汤溪河、童庄河和大宁河、咤溪河和黄金河、磨刀溪和小江、大溪河和官渡河、龙河与梨香溪、御临河与綦江、龙溪河与长滩溪的种类相似度较高;物种多样性分析表明,Shannon-Wiener指数变动在0.6365～2.9329,平均为1.6120;Margalef指数变动在0.6266～5.3074,平均为2.2976。本研究旨在为三峡库区水环境预警平台的建立提供必要的信息和技术支撑。 |
| 英文摘要: |
| Macro-invertebrates samples were collected in 26 major tributaries of Three Gorges Reservoir region in April，2010. A total of 97 species were recorded，including 78 species of aquatic insects，10 species of mollucks，and 6 species of Oligochaeta. Common species occurred in 26 tributaries mainly included Ephemeridae sp. , Ephemerellidae sp. , Baetis sp.，Caenis sp.，Choroterpes sp.，Ecdyonurus sp.，Othacladius sp. and Thieneminimyia. Sp.The average density was 673 .22 ind. /m2，while the average biomass was 9.9398 g/m2.The result of MDS analysis showed that the locations of Yulinhe River，Longxihe River, Changtanxi River and Jialingjiang River were far away from the other 22 rivers. Clustering analysis result showed that there was high species similarity between Baolonghe River and Tongxihe River，as well as Tongzhuanghe River and Dalinghe River, Zhaxihe River and Huangjinhe River, Modaoxi River and Xiaojiang River, Daxihe River and Guanduhe River, Longhe River and Lixiangxi River, Yulinghe River and Qijiang River, Longxihe River and Changtanxi River. Biodiversity analysis results showed that Shannon-Wiener indexes ranged from 0. 6365 to 2. 9329，averating at 1.6120，while Margalef indexes ranged from 0. 6266 to 5.3074，averaging at 2.2976. |
| 池仕运,胡菊香,陈 胜,张原圆.2011.三峡库区支流底栖动物群落结构研究[J].水生态学杂志,32(4):24-30. |
| 查看全文 查看/发表评论 下载PDF阅读器 HTML |
|
|
|
