Transformation of soil organic phosphorus along the Hailuogou post-glacial chronosequence, southeastern edge of the Tibetan Plateau | |
Zhou, Jun1,4; Wu, Yanhong1; Turner, Benjamin L.2,4; Sun, Hongyang1; Wang, Jipeng3; Bing, Haijian1; Luo, Ji1; He, Xiaoli1; Zhu, He1; He, Qingqing1 | |
刊名 | GEODERMA |
2019-10-15 | |
卷号 | 352页码:414-421 |
关键词 | P-31 NMR Inositol hexakisphosphate Phosphomonoester Phosphodiesters Available phosphorus Microbial biomass phosphorus |
ISSN号 | 0016-7061 |
DOI | 10.1016/j.geoderma.2019.05.038 |
通讯作者 | Zhou, Jun(zhoujun@imde.ac.cn) ; Wu, Yanhong(yhwu@imde.ac.cn) |
英文摘要 | Organic phosphorus (P) accumulates in soil during pedogenesis, yet information on the composition and transformation of organic P during the early stages of soil development remains scarce. We studied the top 5 cm of mineral soil immediately beneath the organic horizon from six sites (0, 35, 45, 57, 85 and 125 years) along the Hailuogou glacier foreland chronosequence, on the southeastern edge of the Tibetan Plateau. Phosphorus compounds in the soils were determined by NaOH-EDTA extraction and solution phosphorus-31 nuclear magnetic resonance (P-31 NMR) spectroscopy. Extractable P was dominated by phosphomonoesters (up to 51.5%) and orthophosphate (37.9-44.6%) throughout the chronosequence. The phosphomonoesters were mainly hydrolysis products of RNA and phospholipids and followed a unimodal pattern with soil age, with maximum concentration at the 57-year-old site. myo-Inositol hexakisphosphate was not detected, although scyllo-inositol hexakisphosphate accounted for 4.7-9.3% of the extracted P and D-chiro- and neo-inositol hexakisphosphates occurred small amounts in a few soils (1.1-3.3% of the extracted P). DNA accounted for 4.0-8.3% of extracted P and increased continuously along the chronosequence, associated with increased inputs of plant and microbial residues and stronger sorption to soil surfaces during the rapid decline in soil pH. Pyrophosphate, an inorganic polyphosphate, occurred in small concentrations (up to 5.0%) that fluctuated with soil age. We conclude that organic P compounds accumulate rapidly in the top mineral soil during the early stages of pedogenesis, predominantly as relatively labile compounds from plant and microbial residues. |
资助项目 | National Natural Science Foundation of China[41877011] ; National Natural Science Foundation of China[41630751] ; National Natural Science Foundation of China[41771062] ; National Natural Science Foundation of China[41501281] ; Science and Technology Program of Sichuan Province[2019YJ0008] ; China Scholarship Council[201704910249] |
WOS关键词 | COASTAL DUNE CHRONOSEQUENCE ; NAOH-EDTA EXTRACTS ; D-CHIRO-INOSITOL ; GLACIER FORELAND ; ECOSYSTEM DEVELOPMENT ; MICROBIAL BIOMASS ; SCYLLO-INOSITOL ; GONGGA MOUNTAIN ; IDENTIFICATION ; PHOSPHATE |
WOS研究方向 | Agriculture |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000485207300039 |
资助机构 | National Natural Science Foundation of China ; Science and Technology Program of Sichuan Province ; China Scholarship Council |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/27144] |
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 |
通讯作者 | Zhou, Jun; Wu, Yanhong |
作者单位 | 1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China 2.Smithsonian Trop Res Inst, Apartado 0843-03092, Balboa, Ancon, Panama 3.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China 4.Univ Western Australia, Sch Biol Sci, Perth, WA 6001, Australia |
推荐引用方式 GB/T 7714 | Zhou, Jun,Wu, Yanhong,Turner, Benjamin L.,et al. Transformation of soil organic phosphorus along the Hailuogou post-glacial chronosequence, southeastern edge of the Tibetan Plateau[J]. GEODERMA,2019,352:414-421. |
APA | Zhou, Jun.,Wu, Yanhong.,Turner, Benjamin L..,Sun, Hongyang.,Wang, Jipeng.,...&He, Qingqing.(2019).Transformation of soil organic phosphorus along the Hailuogou post-glacial chronosequence, southeastern edge of the Tibetan Plateau.GEODERMA,352,414-421. |
MLA | Zhou, Jun,et al."Transformation of soil organic phosphorus along the Hailuogou post-glacial chronosequence, southeastern edge of the Tibetan Plateau".GEODERMA 352(2019):414-421. |
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