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梯级引水式水电站对底栖动物群落结构的影响

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
  • 维普
为研究梯级引水式水电站对底栖动物群落结构的影响，对云南景谷河3座梯级电站影响下河流底栖动物的群落结构进行了调查研究。研究结果表明：水电站的修建显著改变了河流的流速及水深；减水段和混合段水体底栖动物的物种丰度和多样性指数存在一定差异；不同级电站混合段底栖动物密度和生物量均高于减水段；功能摄食类群上混合段的滤食者、撕食者和捕食者相对丰度均显著高于减水段；丰度／生物量比较曲线表明，相对于混合段，水电站影响下减水段底栖动物群落受到了一定程度的干扰。故修建梯级小水电站时，应关注其对底栖动物的群落结构的影响。
Effects of Cascade Diversion-type Hydropower Stations on Benthic Macroinvertebrate Communities
In order to explore the effects of cascade diversion-type small hydropower stations (SHPSs)on benthic macroinvertebrate community structures,we investigated the macroinvertebrate communities in rivers affected by three SHPSs in Jinggu River,Yunnan province.Results indicated that the operation of SHPSs had significant im-pact on water velocity and depth,and some differences in Shannon-Weiner index and species richness were found between the reduced-discharge section and the mixed-discharge section.Moreover,for the three stations,the densi-ty and biomass in mixed-discharge section were higher than those in reduced-discharge section.As for functional feeding groups,the relative abundances of filter-collectors,predators and scrapers in mixed-discharge section were significantly higher than those in reduced-discharge section.Furthermore,the results of ABC (Abundance Biomass Comparison)curve analysis showed the benthic macroinvertebrate communities in the reduced-discharge section were subjected to some disturbance compared with those in the mixed-discharge section.Attention should be paid to the impact of cascade small hydropower stations on benthic macroinvertebrate community structure.

small diversion-type hydropower stationsbenthic macroinvertebratecommunity structureJinggu Riv-erfeeding groupsrelative abundance

郭伟杰、赵伟华、王振华

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长江科学院流域水环境研究所，武汉 430010

长江科学院流域水资源与生态环境科学湖北省重点实验室，武汉 430010

中国科学院 水生生物研究所，武汉 430072

引水式电站 底栖动物 群落结构 景谷河 摄食类群 相对丰度

国家自然科学基金中央级公益性科研院所基本科研业务费项目水利部公益性行业科研专项

51109008CKSF2014027／SH201401020

2015

10.3969/j.issn.1001-5485.2015.06.016

长江科学院院报
长江科学院

长江科学院院报

CSTPCDCSCD北大核心
影响因子：0.618
ISSN：1001-5485
年,卷(期)：2015.(6)
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