Export of dissolved carbonaceous and nitrogenous substances in rivers of the "Water Tower of Asia"
文献类型：期刊论文
| 作者 | Qu, Bin1; Sillanpaa, Mika1; Kang, Shichang3,4; Yan, Fangping3,4; Li, Zhiguo5; Zhang, Hongbo2; Li, Chaoliu2,6 |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 65页码:53-61 |
| ISSN号 | 1001-0742 |
| 关键词 | Dissolved carbon Dissolved nitrogen Rivers The Tibetan Plateau |
| DOI | 10.1016/j.jes.2017.04.001 |
| 通讯作者 | Qu, Bin(bin.b.qu@outlook.com) ; Li, Chaoliu(lichaoliu@itpcas.ac.cn) |
| 英文摘要 | Rivers are critical links in the carbon and nitrogen cycle in aquatic, terrestrial, and atmospheric environments. Here riverine carbon and nitrogen exports in nine large rivers on the Tibetan Plateau - the "Water Tower of Asia" - were investigated in the monsoon season from 2013 to 2015. Compared with the world average, concentrations of dissolved inorganic carbon (DIC, 30.7 mg/L) were high in river basins of the plateau due to extensive topographic relief and intensive water erosion. Low concentrations of dissolved organic carbon (DOC, 1.16 mg/L) were likely due to the low temperature and unproductive land vegetation environments. Average concentrations of riverine DIN (0.32 mg/L) and DON (0.35 mg/L) on the Tibetan Plateau were close to the world average. However, despite its predominantly pristine environment, discharge from agricultural activities and urban areas of the plateau has raised riverine N export. In addition, DOC/DON ratio (C/N, similar to 6.5) in rivers of the Tibetan Plateau was much lower than the global average, indicating that dissolved organic carbon in the rivers of this region might be more bioavailable. Therefore, along with global warming and anthropogenic activities, increasing export of bioavailable riverine carbon and nitrogen from rivers of the Tibetan Plateau can be expected in the future, which will possibly influence the regional carbon and nitrogen cycle. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 收录类别 | SCI |
| WOS关键词 | QINGHAI-TIBET PLATEAU ; ORGANIC-CARBON ; CLIMATE-CHANGE ; YANGTZE-RIVER ; ENVIRONMENTAL IMPACTS ; INORGANIC NITROGEN ; PHOSPHORUS ; GLACIER ; ECOSYSTEM ; MATTER |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000427600600006 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558128 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Qu, Bin; Li, Chaoliu |
| 作者单位 | 1.Lappeenranta Univ Technol, Lab Green Chem, Mikkeli 50130, Finland 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China 3.Chinese Acad Sci, State Key Lab Cryospher Sci Cold & Arid Reg Envir, Lanzhou 730000, Gansu, Peoples R China 4.Chinese Acad Sci, Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 5.Shangqiu Normal Univ, Shangqiu 476000, Henan, Peoples R China 6.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qu, Bin,Sillanpaa, Mika,Kang, Shichang,et al. Export of dissolved carbonaceous and nitrogenous substances in rivers of the "Water Tower of Asia"[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2018,65:53-61. |
| APA | Qu, Bin.,Sillanpaa, Mika.,Kang, Shichang.,Yan, Fangping.,Li, Zhiguo.,...&Li, Chaoliu.(2018).Export of dissolved carbonaceous and nitrogenous substances in rivers of the "Water Tower of Asia".JOURNAL OF ENVIRONMENTAL SCIENCES,65,53-61. |
| MLA | Qu, Bin,et al."Export of dissolved carbonaceous and nitrogenous substances in rivers of the "Water Tower of Asia"".JOURNAL OF ENVIRONMENTAL SCIENCES 65(2018):53-61. |
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来源：寒区旱区环境与工程研究所
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