Soil phosphorus bioavailability assessed by XANES and Hedley sequential fractionation technique in a glacier foreland chronosequence in Gongga Mountain, Southwestern China
文献类型：期刊论文
| 作者 | Wu YanHong1 ; Prietzel, Joerg2; Zhou Jun1,3; Bing HaiJian1; Luo Ji1; Yu Dong1; Sun ShouQin1; Liang JianHong1,3; Sun HongYang1,3
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| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2014-08-01 |
| 卷号 | 57期号:8页码:1860-1868 |
| 关键词 | soil phosphorus forms Hedley sequential fractionation technique XANES Hailuogou |
| ISSN号 | 1674-7313 |
| 通讯作者 | YanHong Wu |
| 英文摘要 | The 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 土壤学 |
| 类目[WOS] | Geosciences, Multidisciplinary |
| 研究领域[WOS] | Geology |
| 关键词[WOS] | EDGE STRUCTURE SPECTROSCOPY ; BIOGEOCHEMICAL CYCLE ; HAILUOGOU GLACIER ; POULTRY LITTER ; SPECIATION ; MECHANISMS ; FORMS ; PEDOGENESIS ; ENVIRONMENT ; ECOSYSTEMS |
| 收录类别 | SCI |
| 原文出处 | http://link.springer.com/article/10.1007%2Fs11430-013-4741-z |
| 语种 | 英语 |
| WOS记录号 | WOS:000339818800015 |
| 公开日期 | 2014-03-11 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6874]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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