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Relationships between below-ground biomass and foliar N:P stoichiometry along climatic and altitudinal gradients of the Chinese grassland transect
Yu, Hailing1,2; Fan, Jiangwen1; Harris, Warwick3; Li, Yuzhe1
2017-06-01
Source PublicationPLANT ECOLOGY
ISSN1385-0237
Volume218Issue:6Pages:661-671
Corresponding AuthorFan, Jiangwen(fanjw@igsnrr.ac.cn)
AbstractN and P concentrations and their ratios were determined for 132 foliar and 120 below-ground biomass (BGB) samples obtained at 132 sites along the 4500 km Chinese Grassland Transect (CGT) across the Inner Mongolian and Qinghai-Tibet Plateaus. Patterns of foliar and BGB N, P and their ratio (N/P) at the community level were related to altitude, temperature, and precipitation gradients. Also, patterns of relative N and P foliar and BGB concentrations were determined (N-F/B, foliar N/BGB N; P-F/B, foliar P/BGB P). The relationship between foliar N concentrations and mean annual temperature (MAT) was negative, agreeing with the Temperature-Plant Physiological hypothesis, whereas BGB N decreased with decreasing MAT, supporting the Biogeochemical hypothesis. Patterns of BGB N varying with altitude, MAP and MAT differed from the patterns for leaf N, which may indicate differences in nutrient allocation and utilization by leaves and BGB. N-F/B and P-F/B may reflect trade-offs by plants for N and P in leaves and BGB. For the entire CGT, N-F/B and P-F/B increased as altitude increased. N-F/B was positively related with MAP but negatively related with MAT, while P-F/B showed no correlations with MAP and MAT. Results suggest that ecological stoichiometry at the community level is similar to that at the species level. Strategies of nutrient utilization by leaves and BGB are indicated to be different, and abiotic environmental conditions could influence the stoichiometric characteristics and nutrient allocation to leaves and BGB.
KeywordN, P Stoichiometry Foliar Below-ground biomass Altitude Temperature Precipitation Chinese grassland transect
DOI10.1007/s11258-017-0719-9
WOS KeywordROOT TRAITS ; PHOSPHORUS STOICHIOMETRY ; LEAF NITROGEN ; CARBON STORAGE ; PATTERNS ; PLANTS ; TEMPERATURE ; ECOSYSTEMS ; TURNOVER ; LATITUDE
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31070427] ; Science and Technology Major Project of Qinghai Province[2015-SF-A4-1]
Funding OrganizationNational Natural Science Foundation of China ; Science and Technology Major Project of Qinghai Province
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology ; Forestry
WOS SubjectPlant Sciences ; Ecology ; Forestry
WOS IDWOS:000401435100003
PublisherSPRINGER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64509
Collection中国科学院地理科学与资源研究所
Corresponding AuthorFan, Jiangwen
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Landcare Res, POB 69040, Lincoln 7640, New Zealand
Recommended Citation
GB/T 7714
Yu, Hailing,Fan, Jiangwen,Harris, Warwick,et al. Relationships between below-ground biomass and foliar N:P stoichiometry along climatic and altitudinal gradients of the Chinese grassland transect[J]. PLANT ECOLOGY,2017,218(6):661-671.
APA Yu, Hailing,Fan, Jiangwen,Harris, Warwick,&Li, Yuzhe.(2017).Relationships between below-ground biomass and foliar N:P stoichiometry along climatic and altitudinal gradients of the Chinese grassland transect.PLANT ECOLOGY,218(6),661-671.
MLA Yu, Hailing,et al."Relationships between below-ground biomass and foliar N:P stoichiometry along climatic and altitudinal gradients of the Chinese grassland transect".PLANT ECOLOGY 218.6(2017):661-671.
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