Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu

Taking Lake Gehu located in the Yangtze River Delta as the research object, the phytoplankton community and environmental variables at 18 sampling sites in Lake Gehu were monitored and investigated during the dry season (March) and the wet season (July) of 2020. On this basis, the phytoplankton biol...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Han Zhu, Xiao-Dong Hu, Pei-Pei Wu, Wen-Meng Chen, Su-Shu Wu, Zhi-Qing Li, Liang Zhu, Yi-Long Xi, Rui Huang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Phytoplankton Biological integrity index Hydrological period Ecosystem health assessment Redundancy analysis Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/51e55e80ec804d3aa1753f87c208bc51
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:51e55e80ec804d3aa1753f87c208bc51
record_format	dspace
spelling	oai:doaj.org-article:51e55e80ec804d3aa1753f87c208bc512021-12-01T04:54:58ZDevelopment and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu1470-160X10.1016/j.ecolind.2021.107882https://doaj.org/article/51e55e80ec804d3aa1753f87c208bc512021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21005471https://doaj.org/toc/1470-160XTaking Lake Gehu located in the Yangtze River Delta as the research object, the phytoplankton community and environmental variables at 18 sampling sites in Lake Gehu were monitored and investigated during the dry season (March) and the wet season (July) of 2020. On this basis, the phytoplankton biological integrity index (P-IBI) was established during dry and wet periods, and the health of the lake water ecosystem was evaluated. The results showed that the P-IBI in dry and wet periods was consistent throughout Lake Gehu, and the overall water ecological health assessment results were “moderate”. To test the stability of the P-IBI, the relationships between the P-IBI, its constituent parameters and a single water quality environmental factor were analyzed through redundancy analysis (RDA). The results showed that total nitrogen, the hypermanganate index, chlorophyll a, dissolved oxygen, ammonia nitrogen, and transparency were highly correlated with the P-IBI system. Comparing the composition of the P-IBI during dry and wet periods and the relationships between the P-IBI system and water quality factors in the two hydrological periods, it was found that the parameters of the P-IBI system differed greatly between the dry and wet periods. The number of significantly related water quality factors in the dry period was greater than that in the wet period, and the two-axis characteristic values, the correlations between the P-IBI system and the water quality factors, and the cumulative percentage of the dry period were higher than those in the wet period. In conclusion, the P-IBI exhibits temporal variation between hydrological periods, and the stability of the P-IBI evaluation system during the dry season is significantly better than that during the wet season.Han ZhuXiao-Dong HuPei-Pei WuWen-Meng ChenSu-Shu WuZhi-Qing LiLiang ZhuYi-Long XiRui HuangElsevierarticlePhytoplanktonBiological integrity indexHydrological periodEcosystem health assessmentRedundancy analysisEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107882- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Phytoplankton Biological integrity index Hydrological period Ecosystem health assessment Redundancy analysis Ecology QH540-549.5
spellingShingle	Phytoplankton Biological integrity index Hydrological period Ecosystem health assessment Redundancy analysis Ecology QH540-549.5 Han Zhu Xiao-Dong Hu Pei-Pei Wu Wen-Meng Chen Su-Shu Wu Zhi-Qing Li Liang Zhu Yi-Long Xi Rui Huang Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu
description	Taking Lake Gehu located in the Yangtze River Delta as the research object, the phytoplankton community and environmental variables at 18 sampling sites in Lake Gehu were monitored and investigated during the dry season (March) and the wet season (July) of 2020. On this basis, the phytoplankton biological integrity index (P-IBI) was established during dry and wet periods, and the health of the lake water ecosystem was evaluated. The results showed that the P-IBI in dry and wet periods was consistent throughout Lake Gehu, and the overall water ecological health assessment results were “moderate”. To test the stability of the P-IBI, the relationships between the P-IBI, its constituent parameters and a single water quality environmental factor were analyzed through redundancy analysis (RDA). The results showed that total nitrogen, the hypermanganate index, chlorophyll a, dissolved oxygen, ammonia nitrogen, and transparency were highly correlated with the P-IBI system. Comparing the composition of the P-IBI during dry and wet periods and the relationships between the P-IBI system and water quality factors in the two hydrological periods, it was found that the parameters of the P-IBI system differed greatly between the dry and wet periods. The number of significantly related water quality factors in the dry period was greater than that in the wet period, and the two-axis characteristic values, the correlations between the P-IBI system and the water quality factors, and the cumulative percentage of the dry period were higher than those in the wet period. In conclusion, the P-IBI exhibits temporal variation between hydrological periods, and the stability of the P-IBI evaluation system during the dry season is significantly better than that during the wet season.
format	article
author	Han Zhu Xiao-Dong Hu Pei-Pei Wu Wen-Meng Chen Su-Shu Wu Zhi-Qing Li Liang Zhu Yi-Long Xi Rui Huang
author_facet	Han Zhu Xiao-Dong Hu Pei-Pei Wu Wen-Meng Chen Su-Shu Wu Zhi-Qing Li Liang Zhu Yi-Long Xi Rui Huang
author_sort	Han Zhu
title	Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu
title_short	Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu
title_full	Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu
title_fullStr	Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu
title_full_unstemmed	Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu
title_sort	development and testing of the phytoplankton biological integrity index (p-ibi) in dry and wet seasons for lake gehu
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/51e55e80ec804d3aa1753f87c208bc51
work_keys_str_mv	AT hanzhu developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT xiaodonghu developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT peipeiwu developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT wenmengchen developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT sushuwu developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT zhiqingli developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT liangzhu developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT yilongxi developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu AT ruihuang developmentandtestingofthephytoplanktonbiologicalintegrityindexpibiindryandwetseasonsforlakegehu
_version_	1718405660224258048

Development and testing of the phytoplankton biological integrity index (P-IBI) in dry and wet seasons for Lake Gehu

Ejemplares similares