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Species-specific competition and N fertilization regulate non-structural carbohydrate contents in two Larix species

文献类型：期刊论文

作者Li, Junyu4; Lu, Deliang1,5; Li, Chunyang3; Guo, Qingxue2; Zhang, Yunxiang2; Zhang, Jinxin1,5; Korpelainen, Helena6
刊名FOREST ECOLOGY AND MANAGEMENT
出版日期2016-03-15
卷号364页码:60-69
关键词Intraspecific Competition Interspecific Competition Carbon Limitation Niche Differentiation Forest Plantation
ISSN号0378-1127
DOI10.1016/j.foreco.2016.01.007
英文摘要Non-structural carbohydrates (NSC) are critical to plant signaling, gene transcription, physiological processes, survival and growth. Previous studies have demonstrated that species differing in NSC contents have various responses to stressful environments. However, effects of intra- and interspecific competition or N fertilization on NSC have not been previously studied. We employed two coniferous tree species, Larix kaempferi and Larix olgensis, to investigate the effects of intra- and interspecific competition on NSC under two N supply levels, with and without N fertilization. N fertilization significantly promoted the growth rates, biomass accumulation, carbon isotope composition and N concentration of leaves of the two species. Competition patterns significantly affected the average root diameter. Interspecific competition tended to increase the specific root length and specific root tip density. Also, interspecific competition significantly increased the N concentration of leaves but declined their C:N ratio under no N fertilization (N) treatments. L. kaempferi greatly benefited from the presence of L. olgensis, particularly under N fertilization (N+) treatments. Competition patterns, N fertilization and their interactions promoted N and carbohydrate storage. Our results demonstrated that N was a crucial factor to drive and regulate carbon balance. Differences between species in carbohydrate metabolism may contribute to their coexistence or niche differentiation. (C) 2016 Elsevier B.V. All rights reserved.
WOS研究方向Forestry
语种英语
WOS记录号WOS:000370887100008
出版者ELSEVIER SCIENCE BV
源URL[http://210.72.129.5/handle/321005/122489]  
专题中国科学院沈阳应用生态研究所
通讯作者Li, Chunyang
作者单位1.Chinese Acad Sci, Qingyuan Forest CERN, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610047, Peoples R China
3.Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Nurturing Stn, Linan 311300, Zhejiang, Peoples R China
4.Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China
5.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
6.Univ Helsinki, Viikki Plant Sci Ctr, Dept Agr Sci, POB 27, FI-00014 Helsinki, Finland
推荐引用方式
GB/T 7714		 Li, Junyu,Lu, Deliang,Li, Chunyang,et al. Species-specific competition and N fertilization regulate non-structural carbohydrate contents in two Larix species[J]. FOREST ECOLOGY AND MANAGEMENT,2016,364:60-69.
APA Li, Junyu.,Lu, Deliang.,Li, Chunyang.,Guo, Qingxue.,Zhang, Yunxiang.,...&Korpelainen, Helena.(2016).Species-specific competition and N fertilization regulate non-structural carbohydrate contents in two Larix species.FOREST ECOLOGY AND MANAGEMENT,364,60-69.
MLA Li, Junyu,et al."Species-specific competition and N fertilization regulate non-structural carbohydrate contents in two Larix species".FOREST ECOLOGY AND MANAGEMENT 364(2016):60-69.

入库方式： OAI收割

来源：沈阳应用生态研究所

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