Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12517-016-2820-0 |
Characteristics and sources of atmospheric composition based on precipitation chemistry in the Shiyang River Basin, Northwestern China | |
Li Zong-Jie1; Song Ling-Ling1; Tian Qing1; Li Yong-ge2 | |
通讯作者 | Tian Qing |
来源期刊 | ARABIAN JOURNAL OF GEOSCIENCES |
ISSN | 1866-7511 |
EISSN | 1866-7538 |
出版年 | 2017 |
卷号 | 10期号:2 |
英文摘要 | Through collected precipitation samples continuously to research the precipitation chemical characteristics and the water vapor source in Shiyang River Basin, Northwestern China, a total of 121 precipitation samples had been collected in the Shiyang River Basin from July 2013 to July 2014. The results showed that, during the period of sampling, the variation range of pH value of precipitation ranged from 6.62 to 8.53 in Shiyang River Basin and the average was 7.46. The EC values ranged from 17.28 to 787.00 mu s/cm, with a mean 186.66 mu s/cm. Ca2+ and Na+ dominated cations and accounted for 71.80% of total cations composition, while SO42- and NO3- dominated anions with a contribution of 82.18%. The main ionic sources are local dust aerosols and the dust from Central Asia and Northwestern China arid regions brought by the westerly, and the back trajectories also supported it. Back trajectories suggested that the air mass arrived in Shiyang River Basin mainly from the dust sources region in Central or West Asia or Northwestern China through westerly circulation in dry season, while from the Indian Ocean or the Pacific Ocean through monsoon circulation in wet season. The precipitation can be divided into three types based on the vector of water vapor transportation: the monsoon precipitation, the westerly precipitation, and the interaction precipitation (precipitation influenced both by monsoon and westerly). The type of interaction precipitation was major precipitation patterns in study area, and the westerly precipitation came next. The results are also helpful for further understanding the air pollution situation caused by dust events in study area and providing scientific basis for the effective prevention and control of atmospheric pollution. |
英文关键词 | China Chemical composition Atmospheric circulation Source assessment Shiyang River Basin |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000392065200020 |
WOS关键词 | CHEMICAL-COMPOSITION ; WET DEPOSITION ; ACID PRECIPITATION ; QILIAN MOUNTAINS ; TIBETAN PLATEAU ; ABLATION PERIOD ; SUMMER MONSOON ; URBAN ; INDIA ; SITE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
来源机构 | 中国科学院西北生态环境资源研究院 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197456 |
作者单位 | 1.Gansu Agr Univ, Coll Forestry, Lanzhou 730070, Gansu, Peoples R China; 2.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin Gansu, Hydrol & Water Resources Engn Res Ctr, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Li Zong-Jie,Song Ling-Ling,Tian Qing,et al. Characteristics and sources of atmospheric composition based on precipitation chemistry in the Shiyang River Basin, Northwestern China[J]. 中国科学院西北生态环境资源研究院,2017,10(2). |
APA | Li Zong-Jie,Song Ling-Ling,Tian Qing,&Li Yong-ge.(2017).Characteristics and sources of atmospheric composition based on precipitation chemistry in the Shiyang River Basin, Northwestern China.ARABIAN JOURNAL OF GEOSCIENCES,10(2). |
MLA | Li Zong-Jie,et al."Characteristics and sources of atmospheric composition based on precipitation chemistry in the Shiyang River Basin, Northwestern China".ARABIAN JOURNAL OF GEOSCIENCES 10.2(2017). |
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