Relationships between below-ground biomass and foliar N:P stoichiometry along climatic and altitudinal gradients of the Chinese grassland transect
文献类型:期刊论文
作者 | Yu, Hailing1,2; Fan, Jiangwen1; Harris, Warwick3; Li, Yuzhe1 |
刊名 | PLANT ECOLOGY
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出版日期 | 2017-06-01 |
卷号 | 218期号:6页码:661-671 |
关键词 | N, P Stoichiometry Foliar Below-ground biomass Altitude Temperature Precipitation Chinese grassland transect |
ISSN号 | 1385-0237 |
DOI | 10.1007/s11258-017-0719-9 |
通讯作者 | Fan, Jiangwen(fanjw@igsnrr.ac.cn) |
英文摘要 | N 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. |
WOS关键词 | ROOT TRAITS ; PHOSPHORUS STOICHIOMETRY ; LEAF NITROGEN ; CARBON STORAGE ; PATTERNS ; PLANTS ; TEMPERATURE ; ECOSYSTEMS ; TURNOVER ; LATITUDE |
资助项目 | National Natural Science Foundation of China[31070427] ; Science and Technology Major Project of Qinghai Province[2015-SF-A4-1] |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
语种 | 英语 |
WOS记录号 | WOS:000401435100003 |
出版者 | SPRINGER |
资助机构 | National Natural Science Foundation of China ; Science and Technology Major Project of Qinghai Province |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/64508] ![]() |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Fan, Jiangwen |
作者单位 | 1.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 |
推荐引用方式 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. |
入库方式: OAI收割
来源:地理科学与资源研究所
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