An observational study of soil moisture effects on wind erosion at a gobi site in the Taklimakan Desert
文献类型：期刊论文
| 作者 | Ishizuka ; M ; Mikami ; Yamada ; Y ; Zeng ; FJ ; Gao ; WD |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| 出版日期 | 2005 |
| 卷号 | 110期号:D18页码:D18S03 |
| 关键词 | FRICTION VELOCITY MINERAL DUST SAHARAN DUST THRESHOLD AEROSOLS SALTATION TRANSPORT WATER SAND ASIA |
| ISSN号 | 0148-0227 |
| 通讯作者 | Ishizuka, M, Kagawa Univ, Fac Engn, Dept Safety Syst Construct Engn, 2217-20 Hiyashi Cho, Kagawa 7610396, Japan |
| 中文摘要 | The measurements at a gobi site suggest that (1) saltation mass flux q(z) is particle size and soil moisture-dependent and (2) a simple relationship exists between q and wind speed u and threshold wind speed u(t)(θ). The u(t)(θ) in wet conditions (θ=0.009 m(3) m(-3)) was estimated to be 9.5 m s(-1) at a height of 3.8 m. This value is 1.27 times larger than that in dry condition, which corresponds to Fecan et al.'s theoretical result. The (q) over cap (D) in wet conditions was smaller than that in dry conditions for the particles of 69-203 μ m in diameter. However, for 38 and 54 μ m particles, the (q) over cap did not change in both dry and wet conditions. Furthermore, long-term monitoring showed that (1) the ground surface was dry during Aeolian Dust Experiment on Climate Impact (ADEC)-Intensive Observation Period (IOP) 1 (8-21 April 2002), whereas it was wet during ADEC-IOP2 (16-27 March 2003) because of snowfall at the beginning of March, and (2) the visibility frequently became worse during warm season when strong winds over the threshold wind speed blew and was dry. |
| 学科主题 | 自然地理学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/10524]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Ishizuka,M,Mikami,et al. An observational study of soil moisture effects on wind erosion at a gobi site in the Taklimakan Desert[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2005,110(D18):D18S03. |
| APA | Ishizuka.,M.,Mikami.,Yamada.,Y.,...&WD.(2005).An observational study of soil moisture effects on wind erosion at a gobi site in the Taklimakan Desert.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,110(D18),D18S03. |
| MLA | Ishizuka,et al."An observational study of soil moisture effects on wind erosion at a gobi site in the Taklimakan Desert".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 110.D18(2005):D18S03. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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