Sediments nitrogen cycling influenced by submerged macrophytes growing in winter

Restoration of submerged macrophytes is one of the important measures for ecological treatment of eutrophic lakes. The changes in physical and chemical conditions caused by submerged macrophytes also affect the process of benthic nitrogen cycling. The growth period of Potamogeton crispus is mainly i...

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Autores principales:	Zhang Dan, Wang Chuan, Zhou Qiaohong, Yuan Xingzhong
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	denitrification nitrification submerged macrophytes winter Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/63b4401fa9484138b97e23a3e4c757bf
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id	oai:doaj.org-article:63b4401fa9484138b97e23a3e4c757bf
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spelling	oai:doaj.org-article:63b4401fa9484138b97e23a3e4c757bf2021-11-06T10:54:28ZSediments nitrogen cycling influenced by submerged macrophytes growing in winter0273-12231996-973210.2166/wst.2021.081https://doaj.org/article/63b4401fa9484138b97e23a3e4c757bf2021-04-01T00:00:00Zhttp://wst.iwaponline.com/content/83/7/1728https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Restoration of submerged macrophytes is one of the important measures for ecological treatment of eutrophic lakes. The changes in physical and chemical conditions caused by submerged macrophytes also affect the process of benthic nitrogen cycling. The growth period of Potamogeton crispus is mainly in winter. In order to understand the effect of submerged macrophytes growing in winter on nitrification rate and denitrification rate in the process of nitrogen cycling, experiments were carried out from winter to summer with vegetated and non-vegetated treatments. The results showed that the effect of submerged macrophytes on water temperature was not significant in winter. The nitrogen cycling was mainly affected by variables, which were inorganic nitrogen and dissolved oxygen. Submerged macrophytes had little effect on nitrification rate, but had a certain inhibition on denitrification rate by providing oxygen from photosynthesis. In total, submerged macrophytes growing in winter have little effect on nitrogen cycling in sediment. However, submerged macrophytes growing in winter can increase the attachment surface of microbes and inhibit resuspension of sediment, which play a complementary role to submerged macrophytes growing in summer for maintaining stability of eutrophic lakes. HIGHLIGHTS In the situation of winter, intensity of nitrogen cycling in sediment is mainly affected by environmental variables, like inorganic nitrogen and DO.; Environmental variables affected by submerged macrophytes growing in winter showed similar attributes with those growing in summer.; Temperature had strong effect on nitrogen cycling, as different seasons had different rates of denitrification and nitrification.;Zhang DanWang ChuanZhou QiaohongYuan XingzhongIWA Publishingarticledenitrificationnitrificationsubmerged macrophyteswinterEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 7, Pp 1728-1738 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	denitrification nitrification submerged macrophytes winter Environmental technology. Sanitary engineering TD1-1066
spellingShingle	denitrification nitrification submerged macrophytes winter Environmental technology. Sanitary engineering TD1-1066 Zhang Dan Wang Chuan Zhou Qiaohong Yuan Xingzhong Sediments nitrogen cycling influenced by submerged macrophytes growing in winter
description	Restoration of submerged macrophytes is one of the important measures for ecological treatment of eutrophic lakes. The changes in physical and chemical conditions caused by submerged macrophytes also affect the process of benthic nitrogen cycling. The growth period of Potamogeton crispus is mainly in winter. In order to understand the effect of submerged macrophytes growing in winter on nitrification rate and denitrification rate in the process of nitrogen cycling, experiments were carried out from winter to summer with vegetated and non-vegetated treatments. The results showed that the effect of submerged macrophytes on water temperature was not significant in winter. The nitrogen cycling was mainly affected by variables, which were inorganic nitrogen and dissolved oxygen. Submerged macrophytes had little effect on nitrification rate, but had a certain inhibition on denitrification rate by providing oxygen from photosynthesis. In total, submerged macrophytes growing in winter have little effect on nitrogen cycling in sediment. However, submerged macrophytes growing in winter can increase the attachment surface of microbes and inhibit resuspension of sediment, which play a complementary role to submerged macrophytes growing in summer for maintaining stability of eutrophic lakes. HIGHLIGHTS In the situation of winter, intensity of nitrogen cycling in sediment is mainly affected by environmental variables, like inorganic nitrogen and DO.; Environmental variables affected by submerged macrophytes growing in winter showed similar attributes with those growing in summer.; Temperature had strong effect on nitrogen cycling, as different seasons had different rates of denitrification and nitrification.;
format	article
author	Zhang Dan Wang Chuan Zhou Qiaohong Yuan Xingzhong
author_facet	Zhang Dan Wang Chuan Zhou Qiaohong Yuan Xingzhong
author_sort	Zhang Dan
title	Sediments nitrogen cycling influenced by submerged macrophytes growing in winter
title_short	Sediments nitrogen cycling influenced by submerged macrophytes growing in winter
title_full	Sediments nitrogen cycling influenced by submerged macrophytes growing in winter
title_fullStr	Sediments nitrogen cycling influenced by submerged macrophytes growing in winter
title_full_unstemmed	Sediments nitrogen cycling influenced by submerged macrophytes growing in winter
title_sort	sediments nitrogen cycling influenced by submerged macrophytes growing in winter
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/63b4401fa9484138b97e23a3e4c757bf
work_keys_str_mv	AT zhangdan sedimentsnitrogencyclinginfluencedbysubmergedmacrophytesgrowinginwinter AT wangchuan sedimentsnitrogencyclinginfluencedbysubmergedmacrophytesgrowinginwinter AT zhouqiaohong sedimentsnitrogencyclinginfluencedbysubmergedmacrophytesgrowinginwinter AT yuanxingzhong sedimentsnitrogencyclinginfluencedbysubmergedmacrophytesgrowinginwinter
_version_	1718443733693759488

Sediments nitrogen cycling influenced by submerged macrophytes growing in winter

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