本文關(guān)鍵詞：豐、枯水期里下河腹地典型水體浮游動(dòng)物群落結(jié)構(gòu)與水質(zhì)評(píng)價(jià)　出處：《水生態(tài)學(xué)雜志》2016年06期 　論文類型：期刊論文

  更多相關(guān)文章： 浮游動(dòng)物 群落結(jié)構(gòu) 里下河腹地 豐水期 枯水期

【摘要】：為了探究豐枯水期里下河腹地典型水體中浮游動(dòng)物的群落結(jié)構(gòu)特征,通過(guò)布設(shè)20個(gè)采樣站點(diǎn),于2014年豐水期(7月29日)和枯水期(12月24日)對(duì)里下河腹地典型水體進(jìn)行了2次全面調(diào)查,并對(duì)水質(zhì)狀況進(jìn)行了評(píng)價(jià)。結(jié)果表明,里下河腹地典型水體共鑒定出浮游動(dòng)物21種(包括變種和變型),無(wú)節(jié)幼體1類;其中輪蟲(chóng)最多,共14種,占浮游動(dòng)物總種數(shù)的66.6%;枝角類次之,共6種,占28.6%;橈足類最少,僅1種,占4.8%;各站點(diǎn)浮游動(dòng)物種類組成和密度均以輪蟲(chóng)和枝角類為主,數(shù)量在5~15種,密度變化在9.8~102.2個(gè)/L。浮游動(dòng)物相似性指數(shù)在0.18~0.55,平均為0.36,偏向于輕度相似,表明豐水期與枯水期的生境差異較大。優(yōu)勢(shì)種的優(yōu)勢(shì)度不高,在0.023~0.297;多樣性指數(shù)在1.73~3.56,均勻度指數(shù)在0.67~0.95,表明豐、枯水期里下河腹地典型水體的浮游動(dòng)物群落信息含量較大、群落結(jié)構(gòu)處于較穩(wěn)定狀態(tài)。浮游動(dòng)物多樣性和水質(zhì)監(jiān)測(cè)結(jié)果均表明,枯水期水質(zhì)優(yōu)于豐水期,枯水期水質(zhì)基本處于清潔狀態(tài),豐水期水質(zhì)基本處于中度污染狀態(tài);污染源主要為面源污染,且串場(chǎng)河(6號(hào))、新通揚(yáng)運(yùn)河(12號(hào))、喜鵲湖(17號(hào))、興姜河(18號(hào))受人類活動(dòng)影響較大。
[Abstract]:In order to investigate the community structure characteristics of zooplankton in typical water body in the hinterland of Lixiahe during the period of abundant and dry water, 20 sampling stations were set up. The typical water bodies in the hinterland of Lixia River were investigated twice during the periods of abundant water (July 29th) and dry season (December 24th) on 2014, and the water quality was evaluated. A total of 21 species of zooplankton were identified in typical water bodies of the hinterland of Lixia River. Among them, 14 species were rotifer, accounting for 66.6% of the total zooplankton species. The second was Cladocera, with 6 species, accounting for 28.6B; The copepods were the least, with only one species, accounting for 4.8%. The species composition and density of zooplankton were mainly rotifer and Cladocera, and the number of them was 5. 15 species. The density varied from 9.8 to 102.2 / L, and the similarity index of zooplankton was 0.18 ~ 0.55, with an average of 0.36, which tended to be slightly similar. The results showed that there was a great difference between high water season and dry season, and the dominance of dominant species was not high (0.023 ~ 0.297). The diversity index was 1.73 ~ 3.56, and the evenness index was 0.67 ~ 0.95, which indicated that the information content of zooplankton community in typical water body of Lixia River during dry season was large. The results of zooplankton diversity and water quality monitoring showed that the water quality in the dry season was better than that in the high water period, and the water quality in the dry season was basically clean. The water quality is in the medium pollution state during the high water season; The pollution sources are mainly non-point source pollution, and Chuanchang River (No. 6), Xintongyang Canal (No. 12), Magpie Lake (No. 17) and Xingjiang River (No. 18) are greatly affected by human activities.
【作者單位】： 中國(guó)水產(chǎn)科學(xué)研究院淡水漁業(yè)研究中心農(nóng)業(yè)部長(zhǎng)江下游漁業(yè)生態(tài)環(huán)境監(jiān)測(cè)中心農(nóng)業(yè)部長(zhǎng)江下游漁業(yè)資源環(huán)境科學(xué)觀測(cè)實(shí)驗(yàn)站;江蘇省水文水資源勘測(cè)局泰州分局;
【基金】：江蘇省水利科技項(xiàng)目(No.2013035) 農(nóng)業(yè)部漁業(yè)種質(zhì)資源保護(hù)項(xiàng)目(No.6115048)
【分類號(hào)】：Q958.8;X824
【正文快照】： 里下河地區(qū)位于江蘇中部、淮河下游,包括里運(yùn)河以東、蘇北灌溉總渠以南、揚(yáng)州至南通328國(guó)道及如泰運(yùn)河以北、海堤以西,涉及淮安、揚(yáng)州、鹽城、泰州、南通5市17個(gè)縣(市、區(qū)),總面積21 342 km2。根據(jù)水系和地形特點(diǎn),以通榆河為界,劃分為里下河腹地和沿海墾區(qū)2部分;腹部地區(qū)系里，

本文編號(hào)：1420229