CAJ | 학술논문

于2007年7月～2008年5月对南水北调中线水源区丹江口水库若干入库溪流的大型无脊椎动物的时空动态进行了研究.结果表明,四节蜉、扁蜉、细蜉、侧枝纹石蛾、直突摇蚊哑科一种和真凯氏摇蚊为该地区大型底栖动物优势类群,相对丰度分别为20.4%、11.5%、9.1%、5.9%、11.6%和5.0%;季节间底栖动物密度差异显著,生物量差异不显著,Shannon-Wiener多样性指数和Margalef 多样性指数差异不显著.典型对应分析表明,季度间对底柄动物的影响因子不同是该地区底栖动物群落结构季节间差异不显著的主要原因.图4表3参23
우2007년7월～2008년5월대남수북조중선수원구단강구수고약간입고계류적대형무척추동물적시공동태진행료연구.결과표명,사절부、편부、세부、측지문석아、직돌요문아과일충화진개씨요문위해지구대형저서동물우세류군,상대봉도분별위20.4%、11.5%、9.1%、5.9%、11.6%화5.0%;계절간저서동물밀도차이현저,생물량차이불현저,Shannon-Wiener다양성지수화Margalef 다양성지수차이불현저.전형대응분석표명,계도간대저병동물적영향인자불동시해지구저서동물군락결구계절간차이불현저적주요원인.도4표3삼23
A field investigation was made from July 2007 to May 2008 to study the distribution dynamics of macroinvertbrates in several streams that flow to the Danjiangkou Reservoir. The results showed that Baetis spp., Heptagenia spp., Caenis spp., Ceratopsyche spp, Parakiefferiella spp. and Eukiefferiella spp. were dominant groups in the study period, and their relative abundances were 20.4%, 11.5%, 9.1%, 5.9%, 11.6% and 5.0%, respectively. The difference in macroinvertbrates density was significant, but the differences in macroinvertbrate biomass, Shannon-Wiener index and Margalef index were not significant. Canonical correspondence analysis showed that the influence on the macroinvertbrates varied in different seasons. Fig 4, Tab 3, Ref 23