IB-CAS  > 植被与环境变化国家重点实验室
Functional trait responses to grazing are mediated by soil moisture and plant functional group identity
Zheng, Shuxia; Li, Wenhuai; Lan, Zhichun; Ren, Haiyan; Wang, Kaibo1
2015
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5
AbstractAbundant evidence has shown that grazing alters plant functional traits, community structure and ecosystem functioning of grasslands. Few studies, however, have tested how plant responses to grazing are mediated by resource availability and plant functional group identity. We examined the effects of grazing on functional traits across a broad range of species along a soil moisture gradient in Inner Mongolia grassland. Our results showed that trait syndromes of plant size (individual biomass) and shoot growth (leaf N content and leaf density) distinguished plant species responses to grazing. The effects of grazing on functional traits were mediated by soil moisture and dependent on functional group identity. For most species, grazing decreased plant height but increased leaf N and specific leaf area (SLA) along the moisture gradient. Grazing enhanced the community-weighted attributes (leaf NCWM and SLACWM), which were triggered mainly by the positive trait responses of annuals and biennials and perennial grasses, and increased relative abundance of perennial forbs. Our results suggest that grazing-induced species turnover and increased intraspecific trait variability are two drivers for the observed changes in community weighted attributes. The dominant perennial bunchgrasses exhibited mixed tolerance-resistance strategies to grazing and mixed acquisitive-conservative strategies in resource utilization.
Subject AreaMultidisciplinary Sciences
DOI10.1038/srep18163
Indexed BySCI
Language英语
WOS KeywordINNER-MONGOLIA ; RESOURCE AVAILABILITY ; LEAF TRAITS ; TRADE-OFFS ; PRODUCTIVITY ; GRASSLAND ; GRADIENT ; STRATEGIES ; EVOLUTION ; DEFENSE
WOS Research AreaScience Citation Index Expanded (SCI-EXPANDED)
WOS IDWOS:000366181700001
PublisherNATURE PUBLISHING GROUP
SubtypeArticle
Publication PlaceLONDON
Funding OrganizationNational Natural Science Foundation of China [30900193] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA05050400]
Corresponding Author Emailzsx@ibcas.ac.cn
OAGreen Published, gold
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Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/25956
Collection植被与环境变化国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
2.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Shuxia,Li, Wenhuai,Lan, Zhichun,et al. Functional trait responses to grazing are mediated by soil moisture and plant functional group identity[J]. SCIENTIFIC REPORTS,2015,5.
APA Zheng, Shuxia,Li, Wenhuai,Lan, Zhichun,Ren, Haiyan,&Wang, Kaibo.(2015).Functional trait responses to grazing are mediated by soil moisture and plant functional group identity.SCIENTIFIC REPORTS,5.
MLA Zheng, Shuxia,et al."Functional trait responses to grazing are mediated by soil moisture and plant functional group identity".SCIENTIFIC REPORTS 5(2015).
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