Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China

As the largest tributary of the Yellow River and a large semi-arid area, the ecological status of the Wei River Basin, China, has become an important issue of concern. Habitat, water quality and biological pressure are the factors affecting the structure and function of rivers. However, it is a chal...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Xuhao Wan, Tao Yang, Qian Zhang, Wei Wang, Yiyan Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Planktonic index of biotic integrity Joint effects Physic-chemical parameters Habitat index Semi-arid area Wei River Basin Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/ddc9b006071c47aeb217fb05f5b7ade2
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ddc9b006071c47aeb217fb05f5b7ade2
record_format	dspace
spelling	oai:doaj.org-article:ddc9b006071c47aeb217fb05f5b7ade22021-12-01T04:28:53ZJoint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China1470-160X10.1016/j.ecolind.2020.106909https://doaj.org/article/ddc9b006071c47aeb217fb05f5b7ade22021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20308487https://doaj.org/toc/1470-160XAs the largest tributary of the Yellow River and a large semi-arid area, the ecological status of the Wei River Basin, China, has become an important issue of concern. Habitat, water quality and biological pressure are the factors affecting the structure and function of rivers. However, it is a challenging task to determine the joint rather than isolated influence of factors on the watershed. Plankton is sensitive to the status of water system, so it is used to analyze the interaction between habitat indexes and physic-chemical parameters of water body. In this study, plankton and water samples were collected from 21 sampling sites in the whole Wei River Basin in October 2019. The planktonic index of biotic integrity (P-IBI), biomass, abundance, diversity index and trophic status were established. The integrity of plankton in the basin was evaluated. Redundancy analysis (RDA) was used to assess the correlation and variability between 23 physicochemical factors and habitat indexes of planktonic community. The results show that the applicability and accuracy of P-IBI are good. The planktonic integrity of the ecosystem in the basin is “critical”. The upper and lower reaches of the main stream are better than those of the middle reaches, while the upper reaches of the two major tributaries are in poor condition due to the influence of cities and industries. Wei River system is better than Jing River and Beiluo River system. Physical and chemical factors, including dissolved oxygen, turbidity, phycocyanin and chlorophyll, are the main driving forces affecting the integrity of plankton in the study area. Relatively speaking, the contribution of physicochemical parameters to P-IBI was greater than that of habitat indexes, and there was a shared explanatory variance between them. The abundance level can best reflect the isolation effect of two aspects of the environment. The results show that the planktonic index of biotic integrity is a potential tool to reflect the interaction of habitat conditions and physical and chemical factors. The whole basin scale research is helpful to promote habitat restoration and water conservation.Xuhao WanTao YangQian ZhangWei WangYiyan WangElsevierarticlePlanktonic index of biotic integrityJoint effectsPhysic-chemical parametersHabitat indexSemi-arid areaWei River BasinEcologyQH540-549.5ENEcological Indicators, Vol 120, Iss , Pp 106909- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Planktonic index of biotic integrity Joint effects Physic-chemical parameters Habitat index Semi-arid area Wei River Basin Ecology QH540-549.5
spellingShingle	Planktonic index of biotic integrity Joint effects Physic-chemical parameters Habitat index Semi-arid area Wei River Basin Ecology QH540-549.5 Xuhao Wan Tao Yang Qian Zhang Wei Wang Yiyan Wang Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China
description	As the largest tributary of the Yellow River and a large semi-arid area, the ecological status of the Wei River Basin, China, has become an important issue of concern. Habitat, water quality and biological pressure are the factors affecting the structure and function of rivers. However, it is a challenging task to determine the joint rather than isolated influence of factors on the watershed. Plankton is sensitive to the status of water system, so it is used to analyze the interaction between habitat indexes and physic-chemical parameters of water body. In this study, plankton and water samples were collected from 21 sampling sites in the whole Wei River Basin in October 2019. The planktonic index of biotic integrity (P-IBI), biomass, abundance, diversity index and trophic status were established. The integrity of plankton in the basin was evaluated. Redundancy analysis (RDA) was used to assess the correlation and variability between 23 physicochemical factors and habitat indexes of planktonic community. The results show that the applicability and accuracy of P-IBI are good. The planktonic integrity of the ecosystem in the basin is “critical”. The upper and lower reaches of the main stream are better than those of the middle reaches, while the upper reaches of the two major tributaries are in poor condition due to the influence of cities and industries. Wei River system is better than Jing River and Beiluo River system. Physical and chemical factors, including dissolved oxygen, turbidity, phycocyanin and chlorophyll, are the main driving forces affecting the integrity of plankton in the study area. Relatively speaking, the contribution of physicochemical parameters to P-IBI was greater than that of habitat indexes, and there was a shared explanatory variance between them. The abundance level can best reflect the isolation effect of two aspects of the environment. The results show that the planktonic index of biotic integrity is a potential tool to reflect the interaction of habitat conditions and physical and chemical factors. The whole basin scale research is helpful to promote habitat restoration and water conservation.
format	article
author	Xuhao Wan Tao Yang Qian Zhang Wei Wang Yiyan Wang
author_facet	Xuhao Wan Tao Yang Qian Zhang Wei Wang Yiyan Wang
author_sort	Xuhao Wan
title	Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China
title_short	Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China
title_full	Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China
title_fullStr	Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China
title_full_unstemmed	Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China
title_sort	joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – a case study of the wei river basin, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ddc9b006071c47aeb217fb05f5b7ade2
work_keys_str_mv	AT xuhaowan jointeffectsofhabitatindexesandphysicchemicalfactorsforfreshwaterbasinofsemiaridareaonplanktonintegrityacasestudyoftheweiriverbasinchina AT taoyang jointeffectsofhabitatindexesandphysicchemicalfactorsforfreshwaterbasinofsemiaridareaonplanktonintegrityacasestudyoftheweiriverbasinchina AT qianzhang jointeffectsofhabitatindexesandphysicchemicalfactorsforfreshwaterbasinofsemiaridareaonplanktonintegrityacasestudyoftheweiriverbasinchina AT weiwang jointeffectsofhabitatindexesandphysicchemicalfactorsforfreshwaterbasinofsemiaridareaonplanktonintegrityacasestudyoftheweiriverbasinchina AT yiyanwang jointeffectsofhabitatindexesandphysicchemicalfactorsforfreshwaterbasinofsemiaridareaonplanktonintegrityacasestudyoftheweiriverbasinchina
_version_	1718405931710021632

Joint effects of habitat indexes and physic-chemical factors for freshwater basin of semi-arid area on plankton integrity – A case study of the Wei River Basin, China

Ejemplares similares