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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Guo, Qingxue1; Li, Junyu3; Zhang, Yunxiang1; Zhang, Jinxin4,5; Lu, Deliang4,5; Korpelainen, Helena6; Li, Chunyang2
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
通讯作者Li, Chunyang
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标题词Science & Technology ; Life Sciences & Biomedicine
类目[WOS]Forestry
研究领域[WOS]Forestry
关键词[WOS]TROPICAL TREE SEEDLINGS ; YOUNG PEACH-TREES ; CARBON LIMITATION ; PLANT COMPETITION ; POPULUS-CATHAYANA ; SEXUAL COMPETITION ; ENZYME-ACTIVITIES ; ORGANIC NITROGEN ; CAMBIAL ACTIVITY ; PRUNUS-PERSICA
收录类别SCI
语种英语
WOS记录号WOS:000370887100008
公开日期2016-04-26
源URL[http://ir.imde.ac.cn/handle/131551/15115]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610047, Peoples R China
2.Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Nurturing Stn, Linan 311300, Zhejiang, Peoples R China
3.Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China
4.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
5.Chinese Acad Sci, Qingyuan Forest CERN, 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		 Guo, Qingxue,Li, Junyu,Zhang, Yunxiang,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 Guo, Qingxue.,Li, Junyu.,Zhang, Yunxiang.,Zhang, Jinxin.,Lu, Deliang.,...&Li, Chunyang.(2016).Species-specific competition and N fertilization regulate non-structural carbohydrate contents in two Larix species.FOREST ECOLOGY AND MANAGEMENT,364,60-69.
MLA Guo, Qingxue,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：成都山地灾害与环境研究所

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