The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China

Wetlands have degraded dramatically in recent decades due to wetland drainage, agricultural reclamation, and soil salinization in China. Soil seed banks, as a way of natural regeneration, can efficiently restore the aboveground vegetation if seeds can survive after farming. To explore the response o...

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Autores principales:	Yantong Zhao, Guodong Wang, Meiling Zhao, Ming Wang, Nanlin Hu, Ming Jiang, Lei Qin
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Soil saline-alkalization Soil seed bank Tussock-forming Carex Phragmites australis Wetland restoration Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/a93b922078e24e2995e4ab77fa114a16
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spelling	oai:doaj.org-article:a93b922078e24e2995e4ab77fa114a162021-12-01T04:59:40ZThe potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China1470-160X10.1016/j.ecolind.2021.108145https://doaj.org/article/a93b922078e24e2995e4ab77fa114a162021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21008104https://doaj.org/toc/1470-160XWetlands have degraded dramatically in recent decades due to wetland drainage, agricultural reclamation, and soil salinization in China. Soil seed banks, as a way of natural regeneration, can efficiently restore the aboveground vegetation if seeds can survive after farming. To explore the response of soil seed bank to farming and consequent environmental changes, we compared the structure and composition of soil seed banks between Carex-dominated and Phragmites-dominated natural wetlands and their adjacent farmed fields in the Songnen Plain, China. We found that the responses of soil seed banks to farming and saline-alkaline stress were different between the two community types. The seed density and species richness in Carex-dominated natural wetlands were significantly higher than nearby farmed fields, however, there was no significant difference between Phragmites-dominated natural wetlands and nearby farmed fields. Carex schmidtii and Phragmites australis, dominated in natural wetlands, were both missing after farming. At the same time, the invasive species Typha angustifolia dominated in the farmed fields. Redundancy analysis identified that soil salt content was one of the major factors which significantly affected seed bank composition. Saline-alkaline stress significantly restricted the seed germination in farmed Carex fields, however, it had no significant effect in farmed Phragmites fields. Our study indicated that the potential of vegetation restoration was restricted by seed limit and soil salinization, and it differed significantly between the original community types in the Songnen Plain. In addition to hydrological connection, special technologies (such as planting and seeding) and the improvement of soil conditions are also necessary for successful restoration in salt-affected wetlands.Yantong ZhaoGuodong WangMeiling ZhaoMing WangNanlin HuMing JiangLei QinElsevierarticleSoil saline-alkalizationSoil seed bankTussock-forming CarexPhragmites australisWetland restorationEcologyQH540-549.5ENEcological Indicators, Vol 131, Iss , Pp 108145- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Soil saline-alkalization Soil seed bank Tussock-forming Carex Phragmites australis Wetland restoration Ecology QH540-549.5
spellingShingle	Soil saline-alkalization Soil seed bank Tussock-forming Carex Phragmites australis Wetland restoration Ecology QH540-549.5 Yantong Zhao Guodong Wang Meiling Zhao Ming Wang Nanlin Hu Ming Jiang Lei Qin The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China
description	Wetlands have degraded dramatically in recent decades due to wetland drainage, agricultural reclamation, and soil salinization in China. Soil seed banks, as a way of natural regeneration, can efficiently restore the aboveground vegetation if seeds can survive after farming. To explore the response of soil seed bank to farming and consequent environmental changes, we compared the structure and composition of soil seed banks between Carex-dominated and Phragmites-dominated natural wetlands and their adjacent farmed fields in the Songnen Plain, China. We found that the responses of soil seed banks to farming and saline-alkaline stress were different between the two community types. The seed density and species richness in Carex-dominated natural wetlands were significantly higher than nearby farmed fields, however, there was no significant difference between Phragmites-dominated natural wetlands and nearby farmed fields. Carex schmidtii and Phragmites australis, dominated in natural wetlands, were both missing after farming. At the same time, the invasive species Typha angustifolia dominated in the farmed fields. Redundancy analysis identified that soil salt content was one of the major factors which significantly affected seed bank composition. Saline-alkaline stress significantly restricted the seed germination in farmed Carex fields, however, it had no significant effect in farmed Phragmites fields. Our study indicated that the potential of vegetation restoration was restricted by seed limit and soil salinization, and it differed significantly between the original community types in the Songnen Plain. In addition to hydrological connection, special technologies (such as planting and seeding) and the improvement of soil conditions are also necessary for successful restoration in salt-affected wetlands.
format	article
author	Yantong Zhao Guodong Wang Meiling Zhao Ming Wang Nanlin Hu Ming Jiang Lei Qin
author_facet	Yantong Zhao Guodong Wang Meiling Zhao Ming Wang Nanlin Hu Ming Jiang Lei Qin
author_sort	Yantong Zhao
title	The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China
title_short	The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China
title_full	The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China
title_fullStr	The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China
title_full_unstemmed	The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China
title_sort	potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the songnen plain, china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a93b922078e24e2995e4ab77fa114a16
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The potentials of wetland restoration after farming differ between community types due to their differences in seed limit and salt tolerances in the Songnen Plain, China

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