發(fā)布時間：2018-04-02 00:08

  本文選題：丹江口庫區(qū)　切入點：浮游細菌　出處：《中國環(huán)境科學》2017年01期

【摘要】：為了解丹江口庫區(qū)南水北調(diào)中線工程通水后浮游細菌群落組成及影響因素,于2016枯水期(1月)對丹江庫區(qū)內(nèi)5個典型生態(tài)點位表層水樣進行采集.水質(zhì)監(jiān)測結(jié)果表明庫區(qū)水質(zhì)總體較好,除總氮和高錳酸鹽指數(shù)外,其他各項指標符合Ⅰ類水標準要求.總氮(TN)和高錳酸鹽指數(shù)(COD_(Mn))為庫區(qū)的主要污染因子,水體整體處于中營養(yǎng)狀態(tài).采用高通量測序技術(shù)對浮游細菌群落組成進行研究,結(jié)果表明主要由放線菌門(Actinobacteria)、變形菌門(Proteobacteria)、藍藻門(Cyanobacteria)、擬桿菌門(Bacteroidetes)、疣烎菌門(Verrucomicrobia)、壁厚菌門(Firmicutes)、酸桿菌門(Acidobacteria)等22個門和323個屬組成.5位點樣品具有豐富的群落組成,浮游細菌群落多樣性排序為:黑雞嘴臺子山庫心宋崗渠首.對浮游細菌群落組成與環(huán)境因子的關(guān)系進行典范對應(yīng)分析(CCA),結(jié)果表明:T、pH值、NH_4~+-N、SD顯著影響浮游細菌群落結(jié)構(gòu).
[Abstract]:In order to understand the composition and influencing factors of planktonic bacteria community in Danjiangkou Reservoir area after the mid-route project of South-to-North Water transfer Project, In the dry season of 2016 (January), the surface water samples of five typical ecological sites in the Danjiang reservoir area were collected. The results of water quality monitoring showed that the water quality of the reservoir area was good in general, except for total nitrogen and permanganate index. The total nitrogen (TNN) and permanganate index (COD) were the main pollution factors in the reservoir area, and the whole water body was in a medium nutrient state. The composition of planktonic bacteria community was studied by high-throughput sequencing technique. The results showed that 22 phylum and 323 genera of Actinobacteria, Proteobacteria, Cyanobacteria, Bacteroidetesa, Verrucomicrobiae, Firmicutes, Acidobacteria and Acidobacteria had rich community composition. The order of phytoplankton community diversity was as follows: Songgang canal head in Songgang canal of Taizi Mountain, Heijizui. The canonical correspondence analysis of the relationship between the composition of phytoplankton community and environmental factors was carried out. The results showed that NH _ 4 ~ -N _ (SD) significantly affected the structure of phytoplankton community.
【作者單位】： 南陽師范學院農(nóng)業(yè)工程學院河南省南水北調(diào)中線水源區(qū)生態(tài)安全重點實驗室;南水北調(diào)中線水源區(qū)水安全河南省協(xié)同創(chuàng)新中心;南水北調(diào)中線渠首環(huán)境監(jiān)測應(yīng)急中心;
【基金】：國家自然科學基金項目(41601332) 河南省教育廳高等學校重點科研項目(16A210012,14A180015) 南陽師范學院高層次人才科研啟動費資助項目(ZX2014069)
【分類號】：X524;X172

【相似文獻】

相關(guān)期刊論文 前10條

1 白潔,李巋然,李正炎,孫軍,魏皓,劉素美,吳增茂;渤海春季浮游細菌分布與生態(tài)環(huán)境因子的關(guān)系[J];青島海洋大學學報(自然科學版);2003年06期

2 馮勝;高光;秦伯強;陳默;;太湖北部湖區(qū)水體中浮游細菌的動態(tài)變化[J];湖泊科學;2006年06期

3 馬繼波;董巧香;黃長江;;粵東大規(guī)模海水增養(yǎng)殖區(qū)柘林灣浮游細菌的時空分布[J];生態(tài)學報;2007年02期

4 姜彩虹;張美玲;陶琰潔;禹娜;陳立僑;;上海市內(nèi)不同水質(zhì)的河道春季浮游細菌群落結(jié)構(gòu)分析[J];微生物學通報;2009年04期

5 肖慧;張U，

本文編號：1697896