IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Soil phosphorus bioavailability assessed by XANES and Hedley sequential fractionation technique in a glacier foreland chronosequence in Gongga Mountain, Southwestern China
Wu YanHong1; Prietzel, Joerg2; Zhou Jun1,3; Bing HaiJian1; Luo Ji1; Yu Dong1; Sun ShouQin1; Liang JianHong1,3; Sun HongYang1,3
Corresponding AuthorYanHong Wu
2014
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
EISSN1869-1897
Volume57Issue:8Pages:1860-1868
SubtypeArticle
AbstractThe primary productivity of terrestrial ecosystems is influenced by soil phosphorus bioavailability, which depends largely on chemical fractions of phosphorus. The sequential fractionation technique developed by Hedley et al. or its subsequent modification is a well-known method to determine soil phosphorus forms. Hedley sequential fractionation technique separates the phosphorus into fractions based on their different chemical solubilities in extractants with certain chemical properties. Recently, synchrotron-based X-ray absorption near edge structure (XANES) spectroscopy has been employed to measure soil phosphorus species directly and non-invasively. The XANES method provides information concerning local structure and chemical information of target elements at a molecular level. Thus, it can distinguish phosphorus fractions bound by metal oxides or hydroxides (such as Fe, Al, and Ca). In this present work, the phosphorus speciation of topsoil along a glacial foreland chronosequence in Gongga Mountain is determined using these two methods. The changes in soil phosphorus bioavailability along the 120-year-old chronosequence are assessed based on comparisons of the results obtained by these two methods. The results indicate that Hedley sequential fractionation technique shows a greater ability to determine soil bioavailable phosphorus (Resin-P and NaCHO3-P), while XANES is effective in distinguishing phosphorus bound by metal compounds. In the chronosequence, Ca- and Al-bound phosphorus were derived mainly from primary minerals, whose phosphorus contents decreased within 120 years of moraine weathering and soil development. The content of soil bioavailable phosphorus increased rapidly after 30 years since deglaciation. The increasing phosphorus bioavailability promoted the colonizing and primary succession vegetation.
KeywordSoil Phosphorus Forms Hedley Sequential Fractionation Technique Xanes Hailuogou
Subject Area土壤学
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11430-013-4741-z
URL查看原文
WOS Subject ExtendedGeology
Indexed BySCI
WOS KeywordEDGE STRUCTURE SPECTROSCOPY ; BIOGEOCHEMICAL CYCLE ; HAILUOGOU GLACIER ; POULTRY LITTER ; SPECIATION ; MECHANISMS ; FORMS ; PEDOGENESIS ; ENVIRONMENT ; ECOSYSTEMS
Language英语
Quartile4区
TOP
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000339818800015
Funding OrganizationNational Natural Science Foundation of China(41272220) ; Chinese Academy of Sciences(KZCX2-YW-BR-21 ; KZZD-EW-TZ-06)
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6874
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Tech Univ Munich, Lehrstuhl Bodenkunde, D-85354 Freising Weihenstephan, Germany
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wu YanHong,Prietzel, Joerg,Zhou Jun,et al. Soil phosphorus bioavailability assessed by XANES and Hedley sequential fractionation technique in a glacier foreland chronosequence in Gongga Mountain, Southwestern China[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(8):1860-1868.
APA Wu YanHong.,Prietzel, Joerg.,Zhou Jun.,Bing HaiJian.,Luo Ji.,...&Sun HongYang.(2014).Soil phosphorus bioavailability assessed by XANES and Hedley sequential fractionation technique in a glacier foreland chronosequence in Gongga Mountain, Southwestern China.SCIENCE CHINA-EARTH SCIENCES,57(8),1860-1868.
MLA Wu YanHong,et al."Soil phosphorus bioavailability assessed by XANES and Hedley sequential fractionation technique in a glacier foreland chronosequence in Gongga Mountain, Southwestern China".SCIENCE CHINA-EARTH SCIENCES 57.8(2014):1860-1868.
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