Abiotic soil crust formation on dunes in an etremely arid environment: A 43-year sequential study
文献类型：期刊论文
| 作者 | Duan, ZG; Wang, G; Xiao, HL; Dong, ZB |
| 刊名 | ARID LAND RESEARCH AND MANAGEMENT
 |
| 出版日期 | 2003 |
| 卷号 | 17期号:1页码:43-54 |
| 关键词 | aeolian deposition arid region China crust desert Shapotou |
| ISSN号 | 1532-4982 |
| DOI | 10.1080/15324980390169055 |
| 通讯作者 | Duan, ZG() |
| 英文摘要 | The spatial and temporal patterns of soil crust formation on stabilized dunes at Shapotou, northwestern China, were studied on a time sequence of 0, 18, 35, and 43 years. The spatial pattern of soil formation was estimated by measuring the thickness of accumulated sand fractions on the stabilized dune surface and by analyzing the particle size distribution of soil crust. The results showed that the materials forming the embryonic crusts did not come entirely from atmospheric dustfall, but more likely originated from the deflation process of shifting sand and were related to the characteristics of shifting sand particles. Irrespective of the age, all crusts contained a relatively large proportion of 0.01-0.05 mm particles, suggesting that the 0.01-0.05 mm particles provide a material basis and are a prerequisite to the formation of soil crusts. The formation of crust was a sorting and accumulation process of 0.01-0.05 mm particles. Simultaneously, the formation of stable soil crust apparently tended to be subjected to aggregation processes that include aggregation of inorganic particles themselves and aggregation of organic and inorganic particles. The soil crust was in a constantly alternating process of formation and disruption. The alternation period was about one year. Through this alternation, the fine soil layer beneath the crust can be continuously widened and thickened with increasing stabilization time. |
| 收录类别 | SCI |
| WOS关键词 | MOISTURE CONDITIONS ; WIND EROSION ; MECHANISMS ; INFILTRATION ; RANGELANDS ; VEGETATION ; COLORADO ; RAINFALL ; DESERT |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Environmental Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000180550100004 |
| 出版者 | TAYLOR & FRANCIS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556864 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Duan, ZG |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res Stn, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, State Key Lab Arid Agroecol, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, ZG,Wang, G,Xiao, HL,et al. Abiotic soil crust formation on dunes in an etremely arid environment: A 43-year sequential study[J]. ARID LAND RESEARCH AND MANAGEMENT,2003,17(1):43-54. |
| APA | Duan, ZG,Wang, G,Xiao, HL,&Dong, ZB.(2003).Abiotic soil crust formation on dunes in an etremely arid environment: A 43-year sequential study.ARID LAND RESEARCH AND MANAGEMENT,17(1),43-54. |
| MLA | Duan, ZG,et al."Abiotic soil crust formation on dunes in an etremely arid environment: A 43-year sequential study".ARID LAND RESEARCH AND MANAGEMENT 17.1(2003):43-54. |
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来源：寒区旱区环境与工程研究所
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