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Vegetation and Soil N-15 Natural Abundance in Alpine Grasslands on the Tibetan Plateau: Patterns and Implications

文献类型：期刊论文

作者Yang, Yuanhe3,4; Ji, Chengjun3,4; Robinson, David2; Zhu, Biao1; Fang, Huajun6; Shen, Haihua; Fang, Jingyun3,4
刊名ECOSYSTEMS
出版日期2013
卷号16期号:6页码:1013-1024
关键词carbon:nitrogen ratio climate isotope nitrogen cycle soil delta N-15 soil texture vegetation delta N-15
ISSN号1432-9840
DOI10.1007/s10021-013-9664-1
文献子类Article
英文摘要The natural abundance of nitrogen (N) stable isotopes (delta N-15) has the potential to enhance our understanding of the ecosystem N cycle at large spatial scales. However, vegetation and soil delta N-15 patterns along climatic and edaphic gradients have not yet been fully understood, particularly for high-altitude ecosystems. Here we determined vegetation and soil delta N-15 in alpine grasslands on the Tibetan Plateau by conducting four consecutive regional surveys during 2001-2004, and then examined their relationships with both climatic and edaphic variables. Our results showed that both vegetation and soil N in Tibetan alpine grasslands were more N-15-enriched than global averages. Vegetation delta N-15 did not exhibit any significant trend along the temperature gradient, but decreased significantly with an increase in precipitation amount. In contrast, soil delta N-15 did not vary with either mean annual temperature or precipitation. Our results also indicated that soil delta N-15 exhibited a slight increase with clay content, but decreased with soil carbon:nitrogen ratio. A general linear model analysis revealed that variations in vegetation delta N-15 were dominantly determined by climatic variables, whereas soil delta N-15 was related to edaphic variables. These results provide clues for potential climatic and edaphic regulations on ecosystem N cycle in these high-altitude regions.
学科主题Ecology
出版地NEW YORK
电子版国际标准刊号1435-0629
WOS关键词FOLIAR NITROGEN ISOTOPES ; PRECIPITATION GRADIENT ; MYCORRHIZAL FUNGI ; GLOBAL PATTERNS ; RAIN-FOREST ; CARBON ; DELTA-N-15 ; PLANT ; AVAILABILITY ; DYNAMICS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000323246000007
出版者SPRINGER
资助机构Institute of Botany, Chinese Academy of Sciences(Chinese Academy of Sciences) ; National Basic Research Program of China on Global Change(National Basic Research Program of China) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Strategic Priority Research Program of the Chinese Academy of Sciences(Chinese Academy of Sciences)
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28190]  
专题植被与环境变化国家重点实验室
作者单位1.Univ Aberdeen, Inst Biol & Environm Sci, Sch Biol Sci, Aberdeen AB24 3UU, Scotland
2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China
3.Peking Univ, Minist Educ, Dept Ecol, Beijing 100871, Peoples R China
4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
5.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
6.Cornell Univ, Dept Hort, Ithaca, NY 14853 USA
推荐引用方式
GB/T 7714		 Yang, Yuanhe,Ji, Chengjun,Robinson, David,et al. Vegetation and Soil N-15 Natural Abundance in Alpine Grasslands on the Tibetan Plateau: Patterns and Implications[J]. ECOSYSTEMS,2013,16(6):1013-1024.
APA Yang, Yuanhe.,Ji, Chengjun.,Robinson, David.,Zhu, Biao.,Fang, Huajun.,...&Fang, Jingyun.(2013).Vegetation and Soil N-15 Natural Abundance in Alpine Grasslands on the Tibetan Plateau: Patterns and Implications.ECOSYSTEMS,16(6),1013-1024.
MLA Yang, Yuanhe,et al."Vegetation and Soil N-15 Natural Abundance in Alpine Grasslands on the Tibetan Plateau: Patterns and Implications".ECOSYSTEMS 16.6(2013):1013-1024.

入库方式： OAI收割

来源：植物研究所

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