IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.11
Alterations to biological soil crusts with alpine meadow retrogressive succession affect seeds germination of three plant species
LI Yi-kang; OUYANG Jing-zheng; LIN Li; XU Xing-liang; ZHANG Fa-wei; DU Yan-gong; LIU Shu-li; CAO Guang-min; HAN Fa
Corresponding AuthorHAN Fa
2016-11
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:11Pages:1995-2005
Subtype期刊论文
AbstractBiological soil crusts (BSCs) are the important components of alpine meadow ecosystems. The extent and morphology of BSCs vary greatly with alpine meadow retrogressive succession due to grazing pressure. There is significant interest in impacts of crust composition on plant seed germination, especially in (semi-) arid environments. However, little is known about the influences of BSCs, and their associations with alpine meadow succession, on germination of typical alpine meadow vascular plant species. In a full factorial common-garden experiment, we studied effects of: (1) crust type, (2) seed position, and (3) surface texture on seed germination. We chose three typical alpine meadow plant species (i.e. Poa pratensis, Tibetia himalaica and Potentillen nivea), which belonged to different functional groups (graminoids, legumes, and forbs) and play important roles in all alpine meadow succession stages. Crust type and seed position influenced seed germination, and the inhibitory effects of BSCs depended on the crust type and seed species tested. The major factors influencing seed germination were BSC type, seed position, soil texture, and the interactions between BSC type and seed position; species and seed position; species and surface texture; and species, crust type, and surface texture. Cyanobacteria crust significantly inhibited germination of all seeds. Seed position also had a significant effect on seed germination (p < 0.001). Fewer seedlings germinated on the surface than below the surface, this was especially true for P. nivea. seeds within cyanobacteria and lichen crusts. Only germination rates of T. himalaica on the soil surface were significantly correlated with plant occurrence frequency within the alpine meadow community. The poor correlation for the other two species is possibly that they are perennials. Our results clearly demonstrated that BSCs can be biological filters during seed germination, depending on the BSC succession stage. Through their influences on seed germination, BSCs can strongly influence community assemblages throughout alpine meadow retrogressive succession.
KeywordCrust Type Seed Position Microenvironment Germination Tibetan Plateau Vascular Plants
DOI10.1007/s11629-016-3917-3
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17614
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.11
Recommended Citation
GB/T 7714
LI Yi-kang,OUYANG Jing-zheng,LIN Li,et al. Alterations to biological soil crusts with alpine meadow retrogressive succession affect seeds germination of three plant species[J]. Journal of Mountain Science,2016,13(11):1995-2005.
APA LI Yi-kang.,OUYANG Jing-zheng.,LIN Li.,XU Xing-liang.,ZHANG Fa-wei.,...&HAN Fa.(2016).Alterations to biological soil crusts with alpine meadow retrogressive succession affect seeds germination of three plant species.Journal of Mountain Science,13(11),1995-2005.
MLA LI Yi-kang,et al."Alterations to biological soil crusts with alpine meadow retrogressive succession affect seeds germination of three plant species".Journal of Mountain Science 13.11(2016):1995-2005.
Files in This Item:
File Name/Size DocType Version Access License
8.pdf(571KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[LI Yi-kang]'s Articles
[OUYANG Jing-zheng]'s Articles
[LIN Li]'s Articles
Baidu academic
Similar articles in Baidu academic
[LI Yi-kang]'s Articles
[OUYANG Jing-zheng]'s Articles
[LIN Li]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[LI Yi-kang]'s Articles
[OUYANG Jing-zheng]'s Articles
[LIN Li]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 8.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.