Long-term effects of revegetation on soil water content of sand dunes in arid region of Northern China
文献类型：期刊论文
| 作者 | Li, XR; Ma, FY; Xiao, HL; Wang, XP; Kim, KC |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2004-04-01 |
| 卷号 | 57期号:1页码:1-16 |
| 关键词 | sand dunes soil water content revegetation long-term effects Tengger Desert Northern China |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/S0140-1963(03)00089-2 |
| 通讯作者 | Li, XR(lxinrong@ns.lzb.ac.cn) |
| 英文摘要 | Desert is a challenging environment for organisms largely controlled by extreme abiotic factors including soil water content. The objectives of this study were to: (1) determine the effect of vegetative water utilization on soil water content; and (2) monitor the long-term vegetative response to the change of soil water content after establishing the revegetation of sand dunes of the Shapotou Region in the Tengger Desert, Northern China. The permanent revegetation plots were established in different sites in 1956, 1964, 1976 and 1982. Soil water content was monitored at 20 cm intervals of 10-300 cm in depth. Water content in sand dunes, was measured gravimetrically after 24-h desiccation at 105degreesC during the entire period of revegetation through the year to 2000. Our data show that soil water contents rapidly decreased at 9-10 years after revegetation, and similarly the vertical profile of soil water contents also decreased by depth. Annual precipitation is positively correlated with the water contents at depths 0-40cm, although no clear-cut relationship was shown between precipitation and soil water at the deeper soil layers (from 40 to 300 cm). it is therefore concluded that water utilization of different plant species: shrub with deep-rooting system and annual plants with shallow-rooting system influences the spatial distribution of water inside the soil profile. Temporal and spatial variances of soil water also affected the changes in composition, coverage and biomass of vegetation. Vegetation composition of dominant species has successively changed from all shrub species, such as Caragana korshinskii and Hedysarum scoparaium to annual plants and shrub with shallow-rooting system (Artemisia ordosica). The shrub biomass also changed along with soil water content, although the biomass of herb species increased over time. After 45 years, the shrub coverage decreased from the highest average 30.21% to the current level of 6%, whereas herb coverage increased over time. The soil water content was, however, kept relatively constant at lower level (1.23%) despite shrub coverage was reduced to about 6%. These results provide important baseline information for establishing vegetation and utilization of limited water resource in and desert regions. (C) 2003 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | MICROBIOTIC CRUST ; DESERT ; TRANSECT ; DESERTIFICATION |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000189324600001 |
| 出版者 | ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555637 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, XR |
| 作者单位 | 1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Penn State Univ, Environm Res Inst, Ctr Biodivers Res, University Pk, PA 16802 USA |
| 推荐引用方式 GB/T 7714 | Li, XR,Ma, FY,Xiao, HL,et al. Long-term effects of revegetation on soil water content of sand dunes in arid region of Northern China[J]. JOURNAL OF ARID ENVIRONMENTS,2004,57(1):1-16. |
| APA | Li, XR,Ma, FY,Xiao, HL,Wang, XP,&Kim, KC.(2004).Long-term effects of revegetation on soil water content of sand dunes in arid region of Northern China.JOURNAL OF ARID ENVIRONMENTS,57(1),1-16. |
| MLA | Li, XR,et al."Long-term effects of revegetation on soil water content of sand dunes in arid region of Northern China".JOURNAL OF ARID ENVIRONMENTS 57.1(2004):1-16. |
入库方式： iSwitch采集
来源：寒区旱区环境与工程研究所
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。