The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China

Knowledge of the phytoplankton community dynamics is fundamentally important for river ecological management. Disentangling the relative impacts of co-occurring factors is critical to understanding the community responses to environmental heterogeneity, as well as anthropogenic activities. Taking ph...

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Autores principales:	Yulu Tian, Yuan Jiang, Qi Liu, Dingxue Xu, Yang Liu, Jinxi Song
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Taxa composition Cell density Water environmental variables Fertilizers Land-use Socio-economic factors Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/653a604740634939a213b4935b07af6f
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spelling	oai:doaj.org-article:653a604740634939a213b4935b07af6f2021-12-01T04:43:45ZThe impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China1470-160X10.1016/j.ecolind.2021.107352https://doaj.org/article/653a604740634939a213b4935b07af6f2021-04-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21000170https://doaj.org/toc/1470-160XKnowledge of the phytoplankton community dynamics is fundamentally important for river ecological management. Disentangling the relative impacts of co-occurring factors is critical to understanding the community responses to environmental heterogeneity, as well as anthropogenic activities. Taking phytoplankton community as the indicative variable, this study aimed at elucidating the impacts of driving forces (local factors: water environments; regional factors: land-use, fertilizers application, and socio-economic factors) on the phytoplankton community dynamics. We found that spatial and seasonal processes played a vital role in structuring the phytoplankton community, with Bacillariophyta and Chlorophyta accounting for>79.0% of taxa composition. Bacillariophyta had the highest cell density (>41%), followed by Cyanophyta (>20%) and Chlorophyta (>11%), which mainly contributed to the spatial and seasonal differences in the composition and abundance of the phytoplankton community. Meanwhile, local factors (such as total phosphorus, permanganate index, flow velocity, transparency, and stream depth) and regional factors (the application of phosphate fertilizers) (p < 0.05) were the dominant factors that influenced the phytoplankton community. Here, the phosphorus related factors interfered with the phytoplankton community on both local and regional scales. On the whole, the local factors (including nutrients and hydrology factors) have a more direct impacts on the phytoplankton community in a temperate river. It is of guiding significance for river ecology monitoring and improvement in north China, while paying attention to terrestrial influences, the eutrophication of the river itself still needs to be focused on accompanied with the hydrology factors.Yulu TianYuan JiangQi LiuDingxue XuYang LiuJinxi SongElsevierarticleTaxa compositionCell densityWater environmental variablesFertilizersLand-useSocio-economic factorsEcologyQH540-549.5ENEcological Indicators, Vol 123, Iss , Pp 107352- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Taxa composition Cell density Water environmental variables Fertilizers Land-use Socio-economic factors Ecology QH540-549.5
spellingShingle	Taxa composition Cell density Water environmental variables Fertilizers Land-use Socio-economic factors Ecology QH540-549.5 Yulu Tian Yuan Jiang Qi Liu Dingxue Xu Yang Liu Jinxi Song The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China
description	Knowledge of the phytoplankton community dynamics is fundamentally important for river ecological management. Disentangling the relative impacts of co-occurring factors is critical to understanding the community responses to environmental heterogeneity, as well as anthropogenic activities. Taking phytoplankton community as the indicative variable, this study aimed at elucidating the impacts of driving forces (local factors: water environments; regional factors: land-use, fertilizers application, and socio-economic factors) on the phytoplankton community dynamics. We found that spatial and seasonal processes played a vital role in structuring the phytoplankton community, with Bacillariophyta and Chlorophyta accounting for>79.0% of taxa composition. Bacillariophyta had the highest cell density (>41%), followed by Cyanophyta (>20%) and Chlorophyta (>11%), which mainly contributed to the spatial and seasonal differences in the composition and abundance of the phytoplankton community. Meanwhile, local factors (such as total phosphorus, permanganate index, flow velocity, transparency, and stream depth) and regional factors (the application of phosphate fertilizers) (p < 0.05) were the dominant factors that influenced the phytoplankton community. Here, the phosphorus related factors interfered with the phytoplankton community on both local and regional scales. On the whole, the local factors (including nutrients and hydrology factors) have a more direct impacts on the phytoplankton community in a temperate river. It is of guiding significance for river ecology monitoring and improvement in north China, while paying attention to terrestrial influences, the eutrophication of the river itself still needs to be focused on accompanied with the hydrology factors.
format	article
author	Yulu Tian Yuan Jiang Qi Liu Dingxue Xu Yang Liu Jinxi Song
author_facet	Yulu Tian Yuan Jiang Qi Liu Dingxue Xu Yang Liu Jinxi Song
author_sort	Yulu Tian
title	The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China
title_short	The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China
title_full	The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China
title_fullStr	The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China
title_full_unstemmed	The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China
title_sort	impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/653a604740634939a213b4935b07af6f
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The impacts of local and regional factors on the phytoplankton community dynamics in a temperate river, northern China

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