Phosphorus composition in sediments from seven different trophic lakes, china: a phosphorus-31 nmr study
文献类型：期刊论文
| 作者 | Zhang, Runyu1,2; Wu, Fengchang1; He, Zhongqi3; Zheng, Jian4; Song, Baoan5; Jin, Linhong5 |
| 刊名 | Journal of environmental quality
 |
| 出版日期 | 2009 |
| 卷号 | 38期号:1页码:353-359 |
| ISSN号 | 0047-2425 |
| DOI | 10.2134/jeq2007.0616 |
| 通讯作者 | Wu, fengchang(wufengchang@vip.skleg.cn) |
| 英文摘要 | Information on the chemical composition of sediment phosphorus (p) is fundamental to understanding p dynamics and eutrophication in lake ecosystems. in this study, the surface (10 cm) sediments were collected from seven lakes representing two contrasting ecological areas in china: the middle and lower reaches of yangtze river region and the southwestern china plateau. phosphorus in these sediments was extracted by naoh-edta and characterized by solution (31)p nuclear magnetic resonance spectroscopy. results show that p in the extracts was dominated by inorganic orthophosphate (76.7-97.4% of the extracted p) and orthophosphate monoesters (1.8-14.3%), with smaller amounts of orthophosphate diesters (0.4-8.9%), pyrophosphate (0.1-0.7%), and phosphonates (0.1-0.2%). the relative abundance of orthophosphate was higher in hypertrophic and shallow lake sediments than in eutrophic and mesotrophic and deep lake sediments, whereas the relative abundance of orthophosphate monoesters was the opposite. these observations suggested that the relative abundance of the two types of p forms in sediments might be related to the degree of lake cutrophication. |
| WOS关键词 | MAGNETIC-RESONANCE-SPECTROSCOPY ; ORGANIC PHOSPHORUS ; MARINE-SEDIMENTS ; SOILS ; FORMS ; PHOSPHATES ; RELEASE ; BIOAVAILABILITY ; POLYPHOSPHATE ; EXTRACTANTS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000262483500039 |
| 出版者 | AMER SOC AGRONOMY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2404009 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Wu, Fengchang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550002, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.USDA ARS, New England Plant Soil & Water Lab, Orono, ME 04469 USA 4.Natl Inst Radiol Sci, Nakaminato Lab Marine Radioecol, Hitachinaka, Ibaraki 3111202, Japan 5.Guizhou Univ, Res & Dev Ctr Fine Chem, Guiyang 550003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Runyu,Wu, Fengchang,He, Zhongqi,et al. Phosphorus composition in sediments from seven different trophic lakes, china: a phosphorus-31 nmr study[J]. Journal of environmental quality,2009,38(1):353-359. |
| APA | Zhang, Runyu,Wu, Fengchang,He, Zhongqi,Zheng, Jian,Song, Baoan,&Jin, Linhong.(2009).Phosphorus composition in sediments from seven different trophic lakes, china: a phosphorus-31 nmr study.Journal of environmental quality,38(1),353-359. |
| MLA | Zhang, Runyu,et al."Phosphorus composition in sediments from seven different trophic lakes, china: a phosphorus-31 nmr study".Journal of environmental quality 38.1(2009):353-359. |
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来源：中国科学院大学
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