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Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature
Wang, Jinchuang1,2,3; Duan, Baoli4; Zhang, Yuanbin4; Bughio, Mansoor Ahmed2,3; Jia, Wei2,3
Corresponding Author张远彬
2013
Source PublicationTREES-STRUCTURE AND FUNCTION
ISSN0931-1890
EISSN1432-2285
Volume27Issue:6Pages:1775-1787
SubtypeArticle
AbstractThis study was conducted to determine whether plants in the presence or absence of competition differ in their responses to warming, and whether density modifies the effect of warming. Picea purourea seedlings were grown under ambient and warming (ambient +2.2 A degrees C) conditions in climate control chambers with two different planting densities. After 4 years, seedlings were harvested and measured for height, stem diameter, leaf area, structural biomass, carbon, nitrogen, chlorophyll and carbohydrate levels of needles, branches, stem and roots. At low density, warming increased height, stem diameter, total leaf area biomass production and carbohydrate concentration per seedling, while it decreased C/N ratio for all plant parts, but did not affect chlorophyll content. By contrast, at high density, although warming increased biomass and total leaf area, it did not affect plant height and stem diameter. At the same time, it had different effects on chlorophyll content, C/N ratio and carbohydrate levels among plant parts. On the other hand, high density limited plant growth and altered resource allocation pattern. Our study demonstrates that planting densities decreased the temperature-induced growth enhancement of P. purpurea seedlings and the effects of warming on resource allocation not only showed density-dependence, but also vary with tissue age classes and root diameter; the responses of plants to elevated temperature, acquired from plants growing as individuals, may not be applicable to plants grown under intraspecific competition as typically found in the field.
KeywordGlobal Warming Picea Purpurea Biomass Allocation Density Carbohydrates
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s00468-013-0923-8
WOS Subject ExtendedForestry
Indexed BySCI
WOS KeywordDOUGLAS-FIR SEEDLINGS ; CARBON-DIOXIDE CONCENTRATION ; BIOMASS ALLOCATION ; NITROGEN ALLOCATION ; JUVENILE BEECH ; PONDEROSA PINE ; CO2 ; SPRUCE ; PHOTOSYNTHESIS ; CHLOROPHYLLS
Language英语
Quartile2区
TOP
WOS SubjectForestry
WOS IDWOS:000327086500024
Funding OrganizationNatural Science Foundation of China(31270649 ; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences(SDSQB-2012-01) ; 31270650)
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6719
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
2.China Agr Univ, MOE Lab Plant Soil Interact, Beijing 100193, Peoples R China
3.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China
4.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jinchuang,Duan, Baoli,Zhang, Yuanbin,et al. Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature[J]. TREES-STRUCTURE AND FUNCTION,2013,27(6):1775-1787.
APA Wang, Jinchuang,Duan, Baoli,Zhang, Yuanbin,Bughio, Mansoor Ahmed,&Jia, Wei.(2013).Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature.TREES-STRUCTURE AND FUNCTION,27(6),1775-1787.
MLA Wang, Jinchuang,et al."Density-dependent responses of Picea purpurea seedlings for plant growth and resource allocation under elevated temperature".TREES-STRUCTURE AND FUNCTION 27.6(2013):1775-1787.
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