IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.8
Impacts of warming on root biomass allocation in alpine steppe on the north Tibetan Plateau
Ma, Xing-xing1,2; Yan, Yan1; Hong, Jiang-tao1,2; Lu, Xu-yang1; Wang, Xiao-dan1
2017
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume14Issue:8Pages:1615-1623
SubtypeArticle
AbstractBiomass is an important component of global carbon cycling and is vulnerable to climate change. Previous studies have mainly focused on the responses of aboveground biomass and phenology to warming, while studies of root architecture and of root biomass allocation between coarse and fine roots have been scarcely reported in grassland ecosystems. We conducted an open-top-chamber warming experiment to investigate the effect of potential warming on root biomass and root allocation in alpine steppe on the north Tibetan Plateau. The results showed that Stipa purpurea had significantly higher total root length, root surface area and tips than Carex moocroftii. However, there were no differences in total root volume, mean diameter and forks for the two species. Warming significantly increased total root biomass (27.60%), root biomass at 0-10 cm depth (27.84%) and coarse root biomass (diameter > 0.20 mm, 57.68%) in the growing season (August). However, warming had no significant influence on root biomass in the non-growing season (April). Root biomass showed clear seasonal variations: total root biomass, root biomass at 0-10 cm depth and coarse root biomass significantly increased in the growing season. The increase in total root biomass was due to the enhancement of root biomass at 0-10 cm depth, to which the increase of coarse root biomass made a great contribution. This research is of significance for understanding biomass allocation, carbon cycling and biological adaptability in alpine grassland ecosystems under future climate change.
KeywordCoarse Root Fine Root Root Architecture Warming Climate Change Open-top Chambers
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11629-016-3966-7
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS KeywordTERRESTRIAL ECOSYSTEMS ; ABOVEGROUND BIOMASS ; PICEA-ASPERATA ; SOIL ; NITROGEN ; GROWTH ; GRASSLAND ; RESPONSES ; DYNAMICS ; CARBON
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences
WOS IDWOS:000407267400013
Funding OrganizationNational Natural Science Foundation of China(41571205) ; Strategic Pilot Science and Technology Projects of Chinese Academy of Sciences(XDB03030505 ; XDA05050506)
PublisherSCIENCE PRESS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18949
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.8
山地表生过程与生态调控重点实验室
Corresponding AuthorWang, Xiao-dan
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Ma, Xing-xing,Yan, Yan,Hong, Jiang-tao,et al. Impacts of warming on root biomass allocation in alpine steppe on the north Tibetan Plateau[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(8):1615-1623.
APA Ma, Xing-xing,Yan, Yan,Hong, Jiang-tao,Lu, Xu-yang,&Wang, Xiao-dan.(2017).Impacts of warming on root biomass allocation in alpine steppe on the north Tibetan Plateau.JOURNAL OF MOUNTAIN SCIENCE,14(8),1615-1623.
MLA Ma, Xing-xing,et al."Impacts of warming on root biomass allocation in alpine steppe on the north Tibetan Plateau".JOURNAL OF MOUNTAIN SCIENCE 14.8(2017):1615-1623.
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