Spatial and temporal variations of the diatom communities in megacity streams and its implications for biological monitoring

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Spatial and temporal variations of the diatom communities in megacity streams and its implications for biological monitoring
	Chen, Xiang; Zhou, Weiqi; Luo, Guoping; Luo, Pei; Chen, Zhi
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2020-10
卷号	27 期号:30 页码:37581-37591
关键词	Diatoms Spatial and temporal variation Megacity stream Biological monitoring Beijing
ISSN号	0944-1344
英文摘要	Diatoms have been proven to be good indicators of natural stream conditions, but little is known about the seasonal variability of diatom communities in megacity streams. We investigated the spatial and temporal variation of diatom communities along an urban-to-rural gradient in megacity streams, Beijing, China. We found that the composition and diversity of diatom community was significantly different along the urban-to-rural gradient in streams of Beijing city. The diatom community was subtle temporal variation in the reference stream and urban upstream, but the temporal variation of diatoms was relatively greater in the urban downstream. Overall, the composition of the diatom community was relatively stable in the streams among different seasons, and the dominant species did not change much over seasons. For example, during the sampling periods, the speciesAchnanthidium minutissimumin reference streams had the average relative abundance of 20.3 +/- 3.5%; the speciesPseudostaurosira brevistriataandStaurosira construensvar.venterin urban upstream had average relative abundances of 17.0% +/- 0.9% and 17.3% +/- 1.2%, respectively; and the speciesNitzschia paleain urban downstream had average relative abundances of 18.8 +/- 4.7%. There were significant correlations between the relative abundances of the dominant species and environmental variables, suggesting that the environmental variables had significant effects on the diatom distribution. Our results demonstrate that the diatom communities are relatively stable among seasons in different sampling areas, suggesting that diatoms can be used as reliable indicators for the biological monitoring of water quality in megacity streams across seasons.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44459]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Chen, Xiang,Zhou, Weiqi,Luo, Guoping,et al. Spatial and temporal variations of the diatom communities in megacity streams and its implications for biological monitoring[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020,27(30):37581-37591.
APA	Chen, Xiang,Zhou, Weiqi,Luo, Guoping,Luo, Pei,&Chen, Zhi.(2020).Spatial and temporal variations of the diatom communities in megacity streams and its implications for biological monitoring.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(30),37581-37591.
MLA	Chen, Xiang,et al."Spatial and temporal variations of the diatom communities in megacity streams and its implications for biological monitoring".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.30(2020):37581-37591.