IHB OpenIR  > 水环境工程研究中心  > 期刊论文
EFFECTS OF AIR-DRYING ON PHOSPHORUS SORPTION IN SHALLOW LAKE SEDIMENT, CHINA
Xiao, Wen-Juan1,2; Song, Chun-Lei1; Cao, Xiu-Yun1; Zhou, Yi-Yong1; Zhou, YY (reprint author), Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan, Hubei Province, Peoples R China.
2012
Source PublicationFRESENIUS ENVIRONMENTAL BULLETIN
ISSN1018-4619
Volume21Issue:3APages:672-678
AbstractAir-drying has significant influences on phosphorus sorption behaviors in soils. It is urgently necessary to expend the relevant knowledge to sediments of lakes, especially large eutrophic ones. Sediments were collected at different sites in a Chinese large shallow eutrophic lake (Lake Chaohu) and an urban shallow lake (Lake Donghu) in November 2007; contents of organic matter (OM) were measured. Phosphorus sorption behavior fitted Langmuir equation well. Compared to the field-moist sample, the air-dried sediments had significantly lower sorption energy (K). Additionally, there was a significant positive relationship between the OM content and K value in the field-moist sediments. The changes in geochemical characteristics of iron oxide and organic carbon may be mainly responsible for the decreasing K value in air-dried sediment. Furthermore, in the incubation experiments, the air-dried sediments generally gave higher concentrations of soluble reactive phosphorus coupled with alkaline phosphatase activity, which was mainly due to the decreased phosphorus sorption energy, because there was no significant differences of pH values and dissolved oxygen concentrations between the air-dried and field-moist sediments. Finally, in contrast with the field-moist samples, the air-dried ones showed a significantly positive relationship between OM content and EPC0 value, suggesting that the breakdown of OM during drying may be a major source of P upon reflooding.; Air-drying has significant influences on phosphorus sorption behaviors in soils. It is urgently necessary to expend the relevant knowledge to sediments of lakes, especially large eutrophic ones. Sediments were collected at different sites in a Chinese large shallow eutrophic lake (Lake Chaohu) and an urban shallow lake (Lake Donghu) in November 2007; contents of organic matter (OM) were measured. Phosphorus sorption behavior fitted Langmuir equation well. Compared to the field-moist sample, the air-dried sediments had significantly lower sorption energy (K). Additionally, there was a significant positive relationship between the OM content and K value in the field-moist sediments. The changes in geochemical characteristics of iron oxide and organic carbon may be mainly responsible for the decreasing K value in air-dried sediment. Furthermore, in the incubation experiments, the air-dried sediments generally gave higher concentrations of soluble reactive phosphorus coupled with alkaline phosphatase activity, which was mainly due to the decreased phosphorus sorption energy, because there was no significant differences of pH values and dissolved oxygen concentrations between the air-dried and field-moist sediments. Finally, in contrast with the field-moist samples, the air-dried ones showed a significantly positive relationship between OM content and EPC0 value, suggesting that the breakdown of OM during drying may be a major source of P upon reflooding.
SubtypeArticle
KeywordAir-drying Lake Sediment Phosphorus Sorption Organic Matter Alkaline Phosphatase Activity Equilibrium Phosphorus Concentration
Department[Xiao, Wen-Juan; Song, Chun-Lei; Cao, Xiu-Yun; Zhou, Yi-Yong] Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei Province, Peoples R China; [Xiao, Wen-Juan] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationState Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15] ; State Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15] ; State Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15] ; State Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15]
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000302887800002
WOS KeywordORGANIC-MATTER ; RETENTION CAPACITY ; PHOSPHATE SORPTION ; DRIED SEDIMENTS ; SOIL ; RELEASE ; ADSORPTION ; RESERVOIR ; WETLANDS ; DESORPTION
Funding OrganizationState Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15] ; State Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15] ; State Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15] ; State Major Project of Water Pollution Control and Management[2008ZX07101-013]; National Key Basic Research and development Program[2008CB418006]; National Science Foundation of China[41073066]; State Key Laboratory of Freshwater Ecology and Biotechnology[2011FBZ15]
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/16991
Collection水环境工程研究中心_期刊论文
Corresponding AuthorZhou, YY (reprint author), Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan, Hubei Province, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Wuhan, Hubei Province, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Xiao, Wen-Juan,Song, Chun-Lei,Cao, Xiu-Yun,et al. EFFECTS OF AIR-DRYING ON PHOSPHORUS SORPTION IN SHALLOW LAKE SEDIMENT, CHINA[J]. FRESENIUS ENVIRONMENTAL BULLETIN,2012,21(3A):672-678.
APA Xiao, Wen-Juan,Song, Chun-Lei,Cao, Xiu-Yun,Zhou, Yi-Yong,&Zhou, YY .(2012).EFFECTS OF AIR-DRYING ON PHOSPHORUS SORPTION IN SHALLOW LAKE SEDIMENT, CHINA.FRESENIUS ENVIRONMENTAL BULLETIN,21(3A),672-678.
MLA Xiao, Wen-Juan,et al."EFFECTS OF AIR-DRYING ON PHOSPHORUS SORPTION IN SHALLOW LAKE SEDIMENT, CHINA".FRESENIUS ENVIRONMENTAL BULLETIN 21.3A(2012):672-678.
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