Spatial heterogeneity for grain size distribution of eolian sand soil on longitudinal dunes in the southern gurbantunggut desert
文献类型：期刊论文
| 作者 | Qian, YiBing1; Wu, ZhaoNing2; Yang, HaiFeng1,3; Jiang, Chao1,3 |
| 刊名 | Journal of arid land
 |
| 出版日期 | 2009-11-01 |
| 卷号 | 1期号:1页码:26-33 |
| 关键词 | Grain size distribution Spatial variation Geostatistical analysis Longitudinal dune The southern gurbantunggut desert |
| ISSN号 | 1674-6767 |
| DOI | 10.3724/sp.j.1227.00026 |
| 通讯作者 | Qian, yibing(dt6@ms.xjb.ac.cn) |
| 英文摘要 | The grain size composition, distribution characteristics and spatial variation of eolian sand soil on distinct positions across two longitudinal dunes and interdune areas were studied by means of conventional grain size analysis and geostatistical methods. in the study, 184 samples of eolian sand soil from the 0-30cm layer were systemically collected and measured from two longitudinal dunes and interdunes in the southern gurbantunggut desert. the results show that the dominant grain sizes are fine and very fine sands, and the differences of grain size compositions between the distinct geomorphologic positions are significant. the contents of clay and silt are highest on the interdune areas and lowest on the crests, and higher on the leeward slopes than on the windward slopes. the contents of very fine and fine sands are highest on the windward slopes and lowest on the crests. the contents of medium, coarse and very coarse sands are lowest on the interdune lands, and highest on the crests, and are identical on the two slopes. the coarser sizes (phi(1)) and mean sizes (mz) for eolian sand soil all have a varying tendency from fine to coarse sizes with interdune area -> leeward slope -> windward slope -> crest, and the sorting (sigma) are poorly to well sorted. the results of geostatistical analysis reveal that phi(1), mz and a values are moderately to strongly spatially autocorrelated. the values of the spatially correlated ranges are phi(1) < sigma < mz. the spatial variation for these grain size parameters is significant across the longitudinal dune landscape. from the crests towards the bottom of the slope, there is a varying gradient of zonal distribution, and the gradient values on the leeward slopes are larger than sites on the windward slopes. |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000208019700004 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2394808 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Qian, YiBing |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China 2.Xinjiang Univ, Coll Geol & Explorat Engn, Urumqi 830046, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qian, YiBing,Wu, ZhaoNing,Yang, HaiFeng,et al. Spatial heterogeneity for grain size distribution of eolian sand soil on longitudinal dunes in the southern gurbantunggut desert[J]. Journal of arid land,2009,1(1):26-33. |
| APA | Qian, YiBing,Wu, ZhaoNing,Yang, HaiFeng,&Jiang, Chao.(2009).Spatial heterogeneity for grain size distribution of eolian sand soil on longitudinal dunes in the southern gurbantunggut desert.Journal of arid land,1(1),26-33. |
| MLA | Qian, YiBing,et al."Spatial heterogeneity for grain size distribution of eolian sand soil on longitudinal dunes in the southern gurbantunggut desert".Journal of arid land 1.1(2009):26-33. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。