IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems
Wang, Xiaodan; Ma, Xingxing; Yan, Yan
Corresponding AuthorXiaodan Wang
2017
Source PublicationECOLOGY AND EVOLUTION
ISSN2045-7758
Volume7Issue:5Pages:1354-1362
SubtypeArticle
Abstract

Soil nutrients strongly influence biomass allocation. However, few studies have examined patterns induced by soil C:N:P stoichiometry in alpine and arid ecosystems. Samples were collected from 44 sites with similar elevation along the 220-km transect at spatial intervals of 5km along the northern Tibetan Plateau. Aboveground biomass (AGB) levels were measured by cutting a sward in each plot. Belowground biomass (BGB) levels were collected from soil pits in a block of 1mx1m in actual root depth. We observed significant decreases in AGB and BGB levels but increases in the BGB:AGB ratio with increases in latitude. Although soil is characterized by structural complexity and spatial heterogeneity, we observed remarkably consistent C:N:P ratios within the cryic aridisols. We observed significant nonlinear relationships between the soil N:P and BGB:AGB ratios. The critical N:P ratio in soils was measured at approximately 2.0, above which the probability of BGB:AGB response to nutrient availability is small. These findings serve as interesting contributions to the global data pool on arid plant stoichiometry, given the previously limited knowledge regarding high-altitude regions.

KeywordBiomass Allocation Soil Stoichiometry Soil-plant Interaction Tibetan Plateau
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1002/ece3.2710
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Evolutionary Biology
Indexed BySCI
WOS KeywordC-N-P ; NORTHERN TIBETAN PLATEAU ; NET PRIMARY PRODUCTION ; BELOW-GROUND BIOMASS ; NUTRIENT LIMITATION ; BIOLOGICAL STOICHIOMETRY ; PHOSPHORUS-NUTRITION ; TERRESTRIAL PLANTS ; GLOBAL PATTERNS ; USE EFFICIENCY
Language英语
Quartile3区
TOP
WOS SubjectEcology ; Evolutionary Biology
WOS IDWOS:000395012000004
Funding OrganizationNational Natural Science Foundation of China(41571205) ; Strategic Pilot Science and Technology Projects of the Chinese Academy of Sciences(XDB03030505)
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18588
Collection山地表生过程与生态调控重点实验室
AffiliationChinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, 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
Recommended Citation
GB/T 7714
Wang, Xiaodan,Ma, Xingxing,Yan, Yan. Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems[J]. ECOLOGY AND EVOLUTION,2017,7(5):1354-1362.
APA Wang, Xiaodan,Ma, Xingxing,&Yan, Yan.(2017).Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems.ECOLOGY AND EVOLUTION,7(5),1354-1362.
MLA Wang, Xiaodan,et al."Effects of soil C:N:P stoichiometry on biomass allocation in the alpine and arid steppe systems".ECOLOGY AND EVOLUTION 7.5(2017):1354-1362.
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