The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China

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	The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China
	Pei, Guofeng 1; Wang, Qing 1; Liu, Guoxiang 2
刊名	AQUATIC BOTANY
	2015-08-01
卷号	125 页码:17-22
关键词	Periphyton Eutrophication Chlorophyll a concentration Phosphorus retention Sequential extraction
ISSN号	0304-3770
通讯作者	Pei, GF (reprint author), South Cent Univ Nationalities, Coll Life Sci, Wuhan 430074, Peoples R China.
英文摘要	Periphyton was sampled from an artificial substrate in situ at 8-day intervals in the littoral zone of four shallow lakes with different trophic status. Phosphorus and chlorophyll a were determined including different phosphorus fractions. There was a strong correlation between periphyton chl a levels and the amount of total phosphorus in the lakes, indicating that the phosphorus retention ability of periphyton increased with periphyton mass. The amounts of total phosphorus and chemically extractable phosphorus in periphyton were greater in two of the lakes, Nanhu and Donghu, than in the other two lakes, Niuchaohu and Liangzihu. The greatest chl a and total phosphorus concentrations in periphyton were 103 and 129 mu g cm(-2), respectively, in Nanhu. The amount of total phosphorus was significantly associated (r>0.881) with the chl a concentration and amounts of Fe/Al-bound phosphorus and Ca-bound phosphorus in the periphyton. Most of the total phosphorus in the periphyton was inorganic phosphorus, which mainly consisted of Fe/Al-bound phosphorus and Ca-bound phosphorus; the organic phosphorus fraction only made up 20%, on average, of total phosphorus. Fe/Al-bound phosphorus was the dominant fraction and its relative contribution to total phosphorus in the lakes was 59% (Nanhu), 46% (Donghu), 44% (Niuchaohu), and 38% (Liangzihu). These data demonstrated that periphyton in eutrophic lakes could retain considerable amounts of phosphorus and that high levels of Fe/Al-bound phosphorus are an important early warning symptom of eutrophication. (C) 2015 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Plant Sciences ; Marine & Freshwater Biology
研究领域[WOS]	Plant Sciences ; Marine & Freshwater Biology
关键词[WOS]	EUTROPHIC LAKE ; WATER ; SEDIMENTS ; REMOVAL ; SYSTEMS ; BIOAVAILABILITY ; EXTRACTION ; VEGETATION ; FRACTIONS ; WETLANDS
收录类别	SCI
语种	英语
WOS记录号	WOS:000358095300003
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/25750]
专题	水生生物研究所_藻类生物学及应用研究中心_期刊论文
作者单位	1.South Cent Univ Nationalities, Coll Life Sci, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Pei, Guofeng,Wang, Qing,Liu, Guoxiang. The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China[J]. AQUATIC BOTANY,2015,125:17-22.
APA	Pei, Guofeng,Wang, Qing,&Liu, Guoxiang.(2015).The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China.AQUATIC BOTANY,125,17-22.
MLA	Pei, Guofeng,et al."The role of periphyton in phosphorus retention in shallow lakes with different trophic status, China".AQUATIC BOTANY 125(2015):17-22.