The driving mechanisms for community expansion in a restored Carex tussock wetland

Community expansion and succession are important processes in wetland ecosystems. Studying the expansion of restored plant communities contributes to understanding the dynamic evolution of wetland restoration, and is of great significance. A restored Carex appendiculata tussock wetland in Sun Island...

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Autores principales:	Qing Qi, Dongjie Zhang, Shouzheng Tong, Mingye Zhang, Xuehong Wang, Yu An, Xianguo Lu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Carex appendiculata tussock Community expansion Water depth Wetland restoration Interspecies relationship Hydrological regulation Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/5c6b113223aa4a7a9e79730856ec795d
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id	oai:doaj.org-article:5c6b113223aa4a7a9e79730856ec795d
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spelling	oai:doaj.org-article:5c6b113223aa4a7a9e79730856ec795d2021-12-01T04:33:12ZThe driving mechanisms for community expansion in a restored Carex tussock wetland1470-160X10.1016/j.ecolind.2020.107040https://doaj.org/article/5c6b113223aa4a7a9e79730856ec795d2021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20309791https://doaj.org/toc/1470-160XCommunity expansion and succession are important processes in wetland ecosystems. Studying the expansion of restored plant communities contributes to understanding the dynamic evolution of wetland restoration, and is of great significance. A restored Carex appendiculata tussock wetland in Sun Island was selected for study and a field survey and 3S technology carried out to identify Carex tussock spatial distribution and expansion processes. We also analyzed relationships between the Carex community and environmental variables to clarify the main drivers of community expansion. The C. appendiculata tussock community expanded 29.91 m to southwest and 13.27 m to the east, respectively, with a total expansion area of 722 m2. Carex tussocks in the expansion area had significantly higher leaf area, individual plant biomass, hummock diameter and volume, which were positively correlated with soil water content and water depth. Redundancy analysis (RDA) demonstrated that water depth was the major driving force for Carex tussock community expansion. Additionally, interspecific competition between Phragmites australis and Carex tussock may inhibit Carex community expansion. Moreover, as water depth affected the development and expansion of Carex tussocks, hydrological regulation can be used to accelerate the recovery and restoration of Carex tussock wetland. This study provides a specific technology for the restoration of Carex tussock wetland.Qing QiDongjie ZhangShouzheng TongMingye ZhangXuehong WangYu AnXianguo LuElsevierarticleCarex appendiculata tussockCommunity expansionWater depthWetland restorationInterspecies relationshipHydrological regulationEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 107040- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Carex appendiculata tussock Community expansion Water depth Wetland restoration Interspecies relationship Hydrological regulation Ecology QH540-549.5
spellingShingle	Carex appendiculata tussock Community expansion Water depth Wetland restoration Interspecies relationship Hydrological regulation Ecology QH540-549.5 Qing Qi Dongjie Zhang Shouzheng Tong Mingye Zhang Xuehong Wang Yu An Xianguo Lu The driving mechanisms for community expansion in a restored Carex tussock wetland
description	Community expansion and succession are important processes in wetland ecosystems. Studying the expansion of restored plant communities contributes to understanding the dynamic evolution of wetland restoration, and is of great significance. A restored Carex appendiculata tussock wetland in Sun Island was selected for study and a field survey and 3S technology carried out to identify Carex tussock spatial distribution and expansion processes. We also analyzed relationships between the Carex community and environmental variables to clarify the main drivers of community expansion. The C. appendiculata tussock community expanded 29.91 m to southwest and 13.27 m to the east, respectively, with a total expansion area of 722 m2. Carex tussocks in the expansion area had significantly higher leaf area, individual plant biomass, hummock diameter and volume, which were positively correlated with soil water content and water depth. Redundancy analysis (RDA) demonstrated that water depth was the major driving force for Carex tussock community expansion. Additionally, interspecific competition between Phragmites australis and Carex tussock may inhibit Carex community expansion. Moreover, as water depth affected the development and expansion of Carex tussocks, hydrological regulation can be used to accelerate the recovery and restoration of Carex tussock wetland. This study provides a specific technology for the restoration of Carex tussock wetland.
format	article
author	Qing Qi Dongjie Zhang Shouzheng Tong Mingye Zhang Xuehong Wang Yu An Xianguo Lu
author_facet	Qing Qi Dongjie Zhang Shouzheng Tong Mingye Zhang Xuehong Wang Yu An Xianguo Lu
author_sort	Qing Qi
title	The driving mechanisms for community expansion in a restored Carex tussock wetland
title_short	The driving mechanisms for community expansion in a restored Carex tussock wetland
title_full	The driving mechanisms for community expansion in a restored Carex tussock wetland
title_fullStr	The driving mechanisms for community expansion in a restored Carex tussock wetland
title_full_unstemmed	The driving mechanisms for community expansion in a restored Carex tussock wetland
title_sort	driving mechanisms for community expansion in a restored carex tussock wetland
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/5c6b113223aa4a7a9e79730856ec795d
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The driving mechanisms for community expansion in a restored Carex tussock wetland

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