兰州大学机构库 >生命科学学院
Effects of disturbance intensity on seasonal dynamics of alpine meadow soil seed banks on the Tibetan Plateau
Ma, MJ(马妙君); Zhou, XH; Du, GZ(杜国祯); Du, GZ (reprint author), Lanzhou Univ, Sch Life Sci, South Tianshui Rd 222, Lanzhou 730000, Gansu, Peoples R China.
2013-08
Source PublicationPLANT AND SOIL
ISSN0032-079X
Volume369Issue:1-2Pages:283-295
AbstractInformation on soil seed bank processes is crucial for understanding vegetation dynamics. Despite the documented importance of soil seed banks in many ecosystems, their role is not fully understood in some sensitive habitats, such as the alpine meadows of the Tibetan Plateau. We studied the seasonal dynamics of the germinable soil seed bank under four disturbance intensities in an alpine meadow on the Tibetan Plateau as well as seed size distribution relative to disturbance intensity. Composition of the seed bank was compared with that of the standing vegetation. Density of buried seeds increased with disturbance intensity, but species richness and species diversity decreased. Seed density and species richness of the seed bank varied seasonally in all layers (0-2, 2-7, 7-12 cm) and the whole (0-12 cm). The species composition of seed bank was not significantly influenced by season. There was no trend in seed size distribution as disturbance increased. Seasonal seed bank turnover rates increased with increase in disturbance. The result of the NMDS showed that species composition of seed bank and vegetation exhibited a fairly uniform pattern in each season. Although as a whole the species composition of the vegetation and seed bank showed a relatively low degree of similarity in each season, similarity was highest in the most disturbed habitat. There was no alteration in species composition of seed bank regardless of disturbance intensity, but seed density decreased as disturbance increased. Disturbances in alpine plant communities might increase persistence of regeneration niches. Regeneration from the seed bank together with vegetative reproduction contributed to aboveground vegetation in highly disturbed habitats. Clonal species played an important role in regeneration of vegetation in slightly disturbed areas, where there was little contribution of ruderals from soil seed banks.
KeywordAlpine Meadow Grazing Disturbance Seasonal Dynamics Soil Seed Bank Tibetan Plateau Vegetation
Subject AreaAgriculture ; Plant Sciences
PublisherSPRINGER
DOI10.1007/s11104-012-1560-5
Publication PlaceDORDRECHT
Indexed BySCIE ; BIOSIS
Language英语
First Inst
Funding Project国家自然科学基金项目 ; 高等学校博士学科点专项科研基金 ; 中央高校基本科研业务费专项资金
Project NumberNatural Science Foundation of China [40930533, 41101527] ; Research Fund for the Doctoral Program of Higher Education of China [20110211120026] ; Fundamental Research Funds for the Central Universities [lzujbky-2011-41]
WOS IDWOS:000321642200023
Funding OrganizationNSFC ; MOE ; LZU
SubtypeArticle
BIOSIS IDBIOSIS:PREV201300582931
Department[Ma, Miaojun;
Zhou, Xianhui;
Du, Guozhen] Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Gansu, Peoples R China
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/115331
Collection生命科学学院
Corresponding AuthorDu, GZ (reprint author), Lanzhou Univ, Sch Life Sci, South Tianshui Rd 222, Lanzhou 730000, Gansu, Peoples R China.
Recommended Citation
GB/T 7714
Ma, MJ,Zhou, XH,Du, GZ,et al. Effects of disturbance intensity on seasonal dynamics of alpine meadow soil seed banks on the Tibetan Plateau[J]. PLANT AND SOIL,2013,369(1-2):283-295.
APA Ma, MJ,Zhou, XH,Du, GZ,&Du, GZ .(2013).Effects of disturbance intensity on seasonal dynamics of alpine meadow soil seed banks on the Tibetan Plateau.PLANT AND SOIL,369(1-2),283-295.
MLA Ma, MJ,et al."Effects of disturbance intensity on seasonal dynamics of alpine meadow soil seed banks on the Tibetan Plateau".PLANT AND SOIL 369.1-2(2013):283-295.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Altmetrics Score
Google Scholar
Similar articles in Google Scholar
[Ma, MJ]'s Articles
[Zhou, XH]'s Articles
[Du, GZ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Ma, MJ]'s Articles
[Zhou, XH]'s Articles
[Du, GZ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Ma, MJ]'s Articles
[Zhou, XH]'s Articles
[Du, GZ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Effects of disturbance intensity on seasonal dynamics of alpine meadow soil seed banks on the Tibetan Plateau.pdf
Format: Adobe PDF
No comment.
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.