Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China

Inland wetlands have declined dramatically in the past century due to land drainage, agricultural intensification and soil saline-alkalization in China. Soil seed banks can be an important component of ecological restoration of farmed wetlands if seeds of aquatic species can survive cultivation. To...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yantong Zhao, Guodong Wang, Meiling Zhao, Ming Wang, Zhenshan Xue, Bo Liu, Ming Jiang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Soil seed bank Sedge meadow Soil saline-alkalization Tussock-forming Carex Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/cf5313f470214a5fbf7955d710a83ba7
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:cf5313f470214a5fbf7955d710a83ba7
record_format	dspace
spelling	oai:doaj.org-article:cf5313f470214a5fbf7955d710a83ba72021-12-01T04:57:39ZSeed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China1470-160X10.1016/j.ecolind.2021.107998https://doaj.org/article/cf5313f470214a5fbf7955d710a83ba72021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X21006634https://doaj.org/toc/1470-160XInland wetlands have declined dramatically in the past century due to land drainage, agricultural intensification and soil saline-alkalization in China. Soil seed banks can be an important component of ecological restoration of farmed wetlands if seeds of aquatic species can survive cultivation. To explore the response of soil seed bank to farming and accompanied environmental stress, we compared the structure and composition of seed banks between natural sedge meadows and adjacent soybean and paddy fields under two water levels (moist and flooded) and two salinity treatments (non-saline-alkaline and saline-alkaline stress) in the Songnen Plain, China. We found that the species richness and seed density in the natural wetland were significantly higher than the two farmed fields. Carex species that are dominant species in the natural sedge meadows were seldom present in the soil seed banks. Instead, other high productive species (e. g. Echinochloa crusgalli and Typha angustifolia) survived cultivation as seeds in the farmed fields. Redundancy analysis identified that soil pH, soil salt content and soil water content explained most variance in seed bank composition. Saline-alkaline stress restricted the seed germination and establishment of wetland species even if hydrology was restored. This study indicates that seed limitation and saline-alkaline stress of soil together restricted seed germination and natural restoration potential in the Songnen Plain. In addition to hydrological regulation, the active revegetation of tussock sedges, and improvement of soil saltine-alkaline condition are necessary to support regional biodiversity in the inland wetlands.Yantong ZhaoGuodong WangMeiling ZhaoMing WangZhenshan XueBo LiuMing JiangElsevierarticleSoil seed bankSedge meadowSoil saline-alkalizationTussock-forming CarexEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107998- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Soil seed bank Sedge meadow Soil saline-alkalization Tussock-forming Carex Ecology QH540-549.5
spellingShingle	Soil seed bank Sedge meadow Soil saline-alkalization Tussock-forming Carex Ecology QH540-549.5 Yantong Zhao Guodong Wang Meiling Zhao Ming Wang Zhenshan Xue Bo Liu Ming Jiang Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China
description	Inland wetlands have declined dramatically in the past century due to land drainage, agricultural intensification and soil saline-alkalization in China. Soil seed banks can be an important component of ecological restoration of farmed wetlands if seeds of aquatic species can survive cultivation. To explore the response of soil seed bank to farming and accompanied environmental stress, we compared the structure and composition of seed banks between natural sedge meadows and adjacent soybean and paddy fields under two water levels (moist and flooded) and two salinity treatments (non-saline-alkaline and saline-alkaline stress) in the Songnen Plain, China. We found that the species richness and seed density in the natural wetland were significantly higher than the two farmed fields. Carex species that are dominant species in the natural sedge meadows were seldom present in the soil seed banks. Instead, other high productive species (e. g. Echinochloa crusgalli and Typha angustifolia) survived cultivation as seeds in the farmed fields. Redundancy analysis identified that soil pH, soil salt content and soil water content explained most variance in seed bank composition. Saline-alkaline stress restricted the seed germination and establishment of wetland species even if hydrology was restored. This study indicates that seed limitation and saline-alkaline stress of soil together restricted seed germination and natural restoration potential in the Songnen Plain. In addition to hydrological regulation, the active revegetation of tussock sedges, and improvement of soil saltine-alkaline condition are necessary to support regional biodiversity in the inland wetlands.
format	article
author	Yantong Zhao Guodong Wang Meiling Zhao Ming Wang Zhenshan Xue Bo Liu Ming Jiang
author_facet	Yantong Zhao Guodong Wang Meiling Zhao Ming Wang Zhenshan Xue Bo Liu Ming Jiang
author_sort	Yantong Zhao
title	Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China
title_short	Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China
title_full	Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China
title_fullStr	Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China
title_full_unstemmed	Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China
title_sort	seed limitation and saline-alkaline stress restrict wetland restoration potential in the songnen plain, northeastern china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/cf5313f470214a5fbf7955d710a83ba7
work_keys_str_mv	AT yantongzhao seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina AT guodongwang seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina AT meilingzhao seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina AT mingwang seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina AT zhenshanxue seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina AT boliu seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina AT mingjiang seedlimitationandsalinealkalinestressrestrictwetlandrestorationpotentialinthesongnenplainnortheasternchina
_version_	1718405690997866496

Seed limitation and saline-alkaline stress restrict wetland restoration potential in the Songnen Plain, northeastern China

Ejemplares similares