中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 水环境工程研究中心  > 期刊论文
题名: The phosphorus release pathways and their mechanisms driven by organic carbon and nitrogen in sediments of eutrophic shallow lakes
作者: Li, Hui1; Song, Chun-Lei2; Cao, Xiu-Yun2; Zhou, Yi-Yong2
关键词: Sediment ; Extracellular enzymes ; Phosphorus release ; Organic matter ; Eutrophic shallow lakes
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2016-12-01
DOI: 10.1016/j.scitotenv.2016.07.221
卷: 572, 页:280-288
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: To reveal phosphorus (P) release pathways from sediment and their mechanisms induced by organic matter enrichment, 116 sampling sites (including surface water and sediment) in 29 shallow lakes with different eutrophic degrees in Wuhan city, China, were investigated from July 2011 to November 2011. Empirical relationship and structural equation model indicated that the decomposition of total organic matter (TOM), including proteins (PRT), carbo-hydrates (CHO) and lipids (especially PRT) mediated by extracellular enzymes, accelerated the formation of anaerobic status. On the other hand, coupled nitrification-denitrification caused by ammonium (NH4+-N) accumulation due to PRT decomposition further aggravated anaerobic status and nitrate removal in terms of the increase of dehydrogenase activity (DHA). As a consequence, ferric iron was reduced to ferrous iron and soluble reactive phosphorus (SRP) was released from iron-bound phosphorus (Fe(OOH)similar to P) in sediments. In addition, extracellular alkaline phosphatase can be induced by organic carbon and nitrogen on condition that the input of nitrogen (N) and carbon (C) exceeded by far that of P. Taken together, enrichment of N and C can result in P release through the formation of anaerobic status and alkaline phosphatase production. Hence, we indicated that a close coupling existed among C, N and P cycles. (C) 2016 Elsevier B.V. All rights reserved.
关键词[WOS]: EXTRACELLULAR ENZYMATIC-ACTIVITIES ; ALKALINE-PHOSPHATASE ; TROPHIC STATE ; NUTRIENT LIMITATION ; MARINE-SEDIMENTS ; WATER SEDIMENTS ; POLYMICTIC LAKE ; MATTER ; DECOMPOSITION ; STOICHIOMETRY
语种: 英语
项目资助者: National Natural Science Foundation of China(41230748 ; Major Science and Technology Program for Water Pollution Control and Treatment(2012ZX07103003) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2016FBZ07) ; 41173081 ; 41273089)
WOS记录号: WOS:000387807200029
ISSN号: 0048-9697
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28670
Appears in Collections:水环境工程研究中心_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
1-s2.0-S0048969716316758-main.pdf(1163KB)----开放获取--View Download

作者单位: 1.Tong Ren Univ, Coll Biol & A&F Engn, Tong Ren 554300, Guizhou Provinc, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, 7 Donghu South Rd, Wuhan 430072, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Li, Hui]'s Articles
[Song, Chun-Lei]'s Articles
[Cao, Xiu-Yun]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Li, Hui]‘s Articles
[Song, Chun-Lei]‘s Articles
[Cao, Xiu-Yun]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 1-s2.0-S0048969716316758-main.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院水生生物研究所 - Feedback
Powered by CSpace