Significance of variations in the wind energy environment over the past 50 years with respect to dune activity and desertification in and and semiarid northern China
文献类型：期刊论文
| 作者 | Wang, Xunming1,2; Eerdun, Hasi3; Zhou, Zijiang4; Liu, Xiaoping3 |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2007-05-01 |
| 卷号 | 86期号:3-4页码:252-266 |
| 关键词 | wind energy environment aeolian activity desertification northern china |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2006.09.003 |
| 通讯作者 | Wang, Xunming(xunming@lzb.ac.cn) |
| 英文摘要 | Climate data from 339 meteorological stations collected from the 1950s to the early 2000s was employed to discuss aeolian activity in and and semiarid northern China. The results show that at decadal time scales, erosivity varied greatly in this region. Most of and and semiarid northern China was characterised by environments with moderate to low wind energy. After the 1980s, the erosivity was only 20 to 50% of that beforehand, and this difference had a significant impact on the environmental changes observed during the two periods. The dune mobility index was consistent with the observed dune activity. After the 1980s dune activity decreased and in some deserts with vegetated dune systems during the 1970s most of the dune plinths were active until the 1980s, after which only the crests were active. Some mobile dunes that had developed at the margins of mobile deserts were replaced by semi-anchored or anchored dunes. Because most desert areas with vegetated dune systems in and and semiarid northern China are used for farming or grazing, the results of our monitoring show that the desertification trends were consistent with the trends in erosivity and dune activity in this region. Desertification was controlled much more by climatic changes than has previously been acknowledged, and especially by fluctuations in wind energy. (c) 2006 Elsevier B.V All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | MU-US DESERT ; SOUTHWEST KALAHARI DESERT ; DUNEFIELD ACTIVITY ; LINEAR DUNES ; SAND DUNES ; CLIMATE ; MOBILITY ; DUST ; PRECIPITATION ; VARIABILITY |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000252464100004 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555981 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Xunming |
| 作者单位 | 1.Chinese Acad Sci, Cold Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, MOE Key Lab W China Environm Syst, CAEP, Lanzhou 730000, Peoples R China 3.Beijing Normal Univ, China Ctr Desert Res, Beijing 100875, Peoples R China 4.China Natl Meteorol Informat Ctr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xunming,Eerdun, Hasi,Zhou, Zijiang,et al. Significance of variations in the wind energy environment over the past 50 years with respect to dune activity and desertification in and and semiarid northern China[J]. GEOMORPHOLOGY,2007,86(3-4):252-266. |
| APA | Wang, Xunming,Eerdun, Hasi,Zhou, Zijiang,&Liu, Xiaoping.(2007).Significance of variations in the wind energy environment over the past 50 years with respect to dune activity and desertification in and and semiarid northern China.GEOMORPHOLOGY,86(3-4),252-266. |
| MLA | Wang, Xunming,et al."Significance of variations in the wind energy environment over the past 50 years with respect to dune activity and desertification in and and semiarid northern China".GEOMORPHOLOGY 86.3-4(2007):252-266. |
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来源：寒区旱区环境与工程研究所
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