Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir

Abstract Vegetation effectively slows down the deterioration rate of the ecosystem in the water-level fluctuation zone (WLFZ). In this study, we investigated the impact of impoundment on the germination of seeds from Xanthium sibiricum fruits with various degrees of maturity and produced by X. sibir...

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Autores principales:	Jianhui Liu, Feng Lin, Shaohua Shi, Qiaoli Ayi, Songping Liu, Bo Zeng
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/852e28a5f6c049f28c11bcd131851460
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spelling	oai:doaj.org-article:852e28a5f6c049f28c11bcd1318514602021-12-02T15:06:24ZEffects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir10.1038/s41598-017-04599-42045-2322https://doaj.org/article/852e28a5f6c049f28c11bcd1318514602017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04599-4https://doaj.org/toc/2045-2322Abstract Vegetation effectively slows down the deterioration rate of the ecosystem in the water-level fluctuation zone (WLFZ). In this study, we investigated the impact of impoundment on the germination of seeds from Xanthium sibiricum fruits with various degrees of maturity and produced by X. sibiricum plants growing at different elevations in the WLFZ. Seed production by X. sibiricum under the current water level regulation mode was also investigated. Seeds were collected from seven elevations of the WLFZ of Three Gorges Reservoir (TGR) and exposed at these elevations to submergence. Seed production of the plants germinated from X. sibiricum seeds was observed. The maturity degree of X. sibiricum fruits from different elevations has no influence on the seed production by the plants that are produced from the fruits. Under the present water-level regulation mode, X. sibiricum growing above 155 m are able to generate mature seeds and thus provide seed sources for population maintenance, although the plants growing at an elevation below 165 m failed to produce fruits in 2010 due to unusual flooding. This study is useful for the vegetation recovery and reconstruction in other regions with hydrological characteristics similar to that of the TGR.Jianhui LiuFeng LinShaohua ShiQiaoli AyiSongping LiuBo ZengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianhui Liu Feng Lin Shaohua Shi Qiaoli Ayi Songping Liu Bo Zeng Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir
description	Abstract Vegetation effectively slows down the deterioration rate of the ecosystem in the water-level fluctuation zone (WLFZ). In this study, we investigated the impact of impoundment on the germination of seeds from Xanthium sibiricum fruits with various degrees of maturity and produced by X. sibiricum plants growing at different elevations in the WLFZ. Seed production by X. sibiricum under the current water level regulation mode was also investigated. Seeds were collected from seven elevations of the WLFZ of Three Gorges Reservoir (TGR) and exposed at these elevations to submergence. Seed production of the plants germinated from X. sibiricum seeds was observed. The maturity degree of X. sibiricum fruits from different elevations has no influence on the seed production by the plants that are produced from the fruits. Under the present water-level regulation mode, X. sibiricum growing above 155 m are able to generate mature seeds and thus provide seed sources for population maintenance, although the plants growing at an elevation below 165 m failed to produce fruits in 2010 due to unusual flooding. This study is useful for the vegetation recovery and reconstruction in other regions with hydrological characteristics similar to that of the TGR.
format	article
author	Jianhui Liu Feng Lin Shaohua Shi Qiaoli Ayi Songping Liu Bo Zeng
author_facet	Jianhui Liu Feng Lin Shaohua Shi Qiaoli Ayi Songping Liu Bo Zeng
author_sort	Jianhui Liu
title	Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir
title_short	Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir
title_full	Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir
title_fullStr	Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir
title_full_unstemmed	Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir
title_sort	effects of water level regulation on the seed germination and production of annual plant xanthium sibiricum in the water-level-fluctuating-zone of three gorges reservoir
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/852e28a5f6c049f28c11bcd131851460
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Effects of water level regulation on the seed germination and production of annual plant Xanthium sibiricum in the water-level-fluctuating-zone of Three Gorges Reservoir

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