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| DOI | 10.1007/s10546-017-0235-4 |
| An Investigation into the Processes and Quantity of Dust Emissions over Gravel and Sand Deserts in North-Western China | |
| Zhang Z.; Dong Z.; Qian G.; Wu G.; Cui X. | |
| 发表日期 | 2017 |
| ISSN | 00068315 |
| 卷号 | 163期号:3 |
| 英文摘要 | Year-long field observations have shown that there are spatial and temporal variations in the quantity of dust emissions for particulate matter < 10 μ m (PM10), particulate matter < 63 μ m (PM63) and vertical dust flux over different gravel surfaces (with loose sand, without loose sand, with a crust, and without a crust), with the greatest emissions occurring in the spring. The largest quantity of PM10 and PM63 emissions occurred over gravel with a loose sand surface (1.1 × 10 - 3 and 10.2×10-3kgm-1day-1, respectively). The gravel surface without loose sand and without a crust presents the lowest values of PM63 (1.6×10-3kgm-1day-1) and PM10 (3.3×10-4kgm-1day-1). However, the vertical dust flux was largest at over sandy surface (373×10-3kgm-2day-1). Multivariate correlation analysis indicates that the quantity of PM10 is strongly negatively correlated to gravel coverage (R2= 0.55). The quantity of PM10 dust emissions over a gravel surface with loose sand is approximately three times greater than that of a gravel surface with a crust. The mean quantity of PM10, PM63 and vertical dust flux over a gravel surface decreased with increasing gravel coverage. By comparing the quantity of PM10 dust emissions over gravel and sandy deserts, we found that gravel deserts and sandy deserts are both major sources of dust for dust storms in this region. © 2017, Springer Science+Business Media Dordrecht. |
| 英文关键词 | Dust; Gravel desert; Particulate matter; Sandy desert |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85010952771&doi=10.1007%2fs10546-017-0235-4&partnerID=40&md5=3587a2ce4b379e4e7953d99ed77964d5 |
| 语种 | 英语 |
| scopus关键词 | Arid regions; Dust; Landforms; Multivariant analysis; Sand; Storms; Dust emission; Field observations; Gravel surfaces; Multivariate correlation; Particulate Matter; Sandy deserts; Spatial and temporal variation; Western China; Gravel; correlation; desert; dust; dust storm; emission inventory; multivariate analysis; particulate matter; point source; quantitative analysis; sand and gravel; spatial variation; temporal variation; China |
| 来源期刊 | Boundary-Layer Meteorology
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77364 |
| 推荐引用方式 GB/T 7714 | Zhang Z.； Dong Z.； Qian G.； Wu G.； Cui X.. An Investigation into the Processes and Quantity of Dust Emissions over Gravel and Sand Deserts in North-Western China[J]. 中国科学院西北生态环境资源研究院,2017,163(3). |
| APA | Zhang Z.； Dong Z.； Qian G.； Wu G.； Cui X..(2017).An Investigation into the Processes and Quantity of Dust Emissions over Gravel and Sand Deserts in North-Western China.Boundary-Layer Meteorology,163(3). |
| MLA | Zhang Z.； Dong Z.； Qian G.； Wu G.； Cui X.."An Investigation into the Processes and Quantity of Dust Emissions over Gravel and Sand Deserts in North-Western China".Boundary-Layer Meteorology 163.3(2017). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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