中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Changes in soil and vegetation following stabilisation of dunes in the southeastern fringe of the Tengger Desert, China

文献类型:期刊论文

作者Li, X. R.; Kong, D. S.; Tan, H. J.; Wang, X. P.
刊名PLANT AND SOIL
出版日期2007-11-01
卷号300期号:1-2页码:221-231
关键词long-term effects sand-binding vegetation soil resources stabilized dunes succession Tengger Desert
ISSN号0032-079X
DOI10.1007/s11104-007-9407-1
通讯作者Li, X. R.(Lxinrong@lzb.ac.cn)
英文摘要Properties of the soil and sand-binding vegetation were measured at five sites plus a control on dunes of the Tengger Desert stabilized for periods of up to 50 years. In the topsoil, fine particles, total N, P, K and organic matter increased significantly with increasing site age. However, there were no significant changes in deeper soil profiles (> 0.4 m depth). Soil pH, calcium carbonate content, and total salt content tended to increase with age. Soil water in the topsoil changed little with increasing age, but was closely related to rainfall during the 50-year period. For deeper soil layers (0.4-3.0 m) soil water decreased significantly with age. After revegetation, the number of herbaceous species increased up to 30 years and then levelled off to 12-14 species, whereas the number of shrub species decreased from the 10 initial sand-binding species to only 3 species. Shrub cover decreased from a highest average of about 33% to the current 9%, whereas cover and biomass of herbaceous species increased throughout succession from 1956 to 2006. The development of soil and cryptogamic crusts on the surface of stabilized dunes enhanced the colonization and establishment of herbaceous plants due to increasing water availability, clay and silt content and soil nutrients. We propose that changes in properties of the surface soil led to increased interception of water, favoring shallow rooted grasses and forbs over perennial shrubs.
收录类别SCI
WOS关键词NORTH-CENTRAL CHINA ; CHIHUAHUAN DESERT ; SHORTGRASS STEPPE ; PATTERNS ; REGION ; SUCCESSION ; WATER ; REVEGETATION ; RESTORATION ; ECOSYSTEMS
WOS研究方向Agriculture ; Plant Sciences
WOS类目Agronomy ; Plant Sciences ; Soil Science
语种英语
WOS记录号WOS:000250582500020
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2555924
专题寒区旱区环境与工程研究所
通讯作者Li, X. R.
作者单位Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Gansu Province, Peoples R China
推荐引用方式
GB/T 7714
Li, X. R.,Kong, D. S.,Tan, H. J.,et al. Changes in soil and vegetation following stabilisation of dunes in the southeastern fringe of the Tengger Desert, China[J]. PLANT AND SOIL,2007,300(1-2):221-231.
APA Li, X. R.,Kong, D. S.,Tan, H. J.,&Wang, X. P..(2007).Changes in soil and vegetation following stabilisation of dunes in the southeastern fringe of the Tengger Desert, China.PLANT AND SOIL,300(1-2),221-231.
MLA Li, X. R.,et al."Changes in soil and vegetation following stabilisation of dunes in the southeastern fringe of the Tengger Desert, China".PLANT AND SOIL 300.1-2(2007):221-231.

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来源:寒区旱区环境与工程研究所

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