Estimation of Sand Transportation Rate for Fixed and Semi-Fixed Dunes Using Meteorological Wind Data
文献类型：期刊论文
| 作者 | Hu Xia1,2,3; Liu Lian-You1,2; Li Shun-Jiang4; Xiao Bi-Lin5; Liu Mu-Xing1,2 |
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 19期号:1页码:129-136 |
| ISSN号 | 1002-0160 |
| 关键词 | fixed and semi-fixed dunes meteorological wind data sand transportation rate wind erosion |
| 通讯作者 | Liu Lian-You(lyliu@ires.cn) |
| 英文摘要 | Taibus County, Inner Mongolia, China, lies in a farming-pastoral ecotone, where severe wind erosion and various acolian sand hazards are prevalent and fixed and semi-fixed sand dunes occur frequently. This study was conducted to investigate the relationships between sand transportation rate and wind speed for the fixed and semi-fixed sand dunes based on field measurements. The annual quantity of soil erosion by wind was estimated using meteorological wind data. The results indicated that the sand transportation rate in Taibus County in 2000 was 57.38 kg cm(-1) year(-1) for the semi-fixed dunes and 4.56 kg cm(-1) year(-1) for the fixed dunes. The total duration of erosive winds covered 12.5% of the time of the year, and spring posed the highest potential of sand transportation. Wind with low speed (<= 17 m s(-1)) and high frequency plays a dominant role in sand transportation, while strong wind (>= 17 m s(-1)) with low frequency significantly enhanced the sand transportation. Erosive wind speed, directions, and frequency were three crucial dynamic factors influencing sand hazards in the farming-pastoral ecotone. The dominant factors intensifying sand and dust storms in Taibus County might be related to the favorable wind condition in combination with the durable drought, which led to land desertification and vegetation degradation. |
| 收录类别 | SCI |
| WOS关键词 | KALAHARI DESERT ; SALTATION ; VEGETATION ; SIMULATION ; EROSION ; GRAINS ; ENERGY ; TUNNEL ; COVER |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000263656200015 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2558764 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Liu Lian-You |
| 作者单位 | 1.Beijing Normal Univ, Minist Educ, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China 2.Beijing Normal Univ, Minist Educ, Minist Civil Affairs, Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 21008, Peoples R China 4.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr & Resources, Beijing 100097, Peoples R China 5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Xia,Liu Lian-You,Li Shun-Jiang,et al. Estimation of Sand Transportation Rate for Fixed and Semi-Fixed Dunes Using Meteorological Wind Data[J]. PEDOSPHERE,2009,19(1):129-136. |
| APA | Hu Xia,Liu Lian-You,Li Shun-Jiang,Xiao Bi-Lin,&Liu Mu-Xing.(2009).Estimation of Sand Transportation Rate for Fixed and Semi-Fixed Dunes Using Meteorological Wind Data.PEDOSPHERE,19(1),129-136. |
| MLA | Hu Xia,et al."Estimation of Sand Transportation Rate for Fixed and Semi-Fixed Dunes Using Meteorological Wind Data".PEDOSPHERE 19.1(2009):129-136. |
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来源：南京土壤研究所
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