Influence of soil qualities on intra- and interspecific competition dynamics of Larix kaempferi and L. olgensis

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Influence of soil qualities on intra- and interspecific competition dynamics of Larix kaempferi and L. olgensis
	Guo, Qingxue1,4 ; Zhang, Yuanbin1 ; Wang, Danlin 1,4; Zhang, Yunxiang1,4 ; Korpelainen, Helena 3; Li, Chunyang2
刊名	ENVIRONMENTAL AND EXPERIMENTAL BOTANY
	2017-03-01
卷号	135 页码:96-105
关键词	Non-structural carbohydrate storage Environmental heterogeneity Temporal niche differentiation Forest management Forest plantation
ISSN号	0098-8472
通讯作者	Chunyang Li
英文摘要	Forest management has potential to detrimentally impact long-term plantation productivity. Establishment of mixed plantations and fertilization are two important management approaches When trying to maintain soil qualities and productivity. In this study, two types of experiments were conducted to investigate the influence of soil qualities on intra- and interspecific competition dynamics in two larch species. Experiment 1: We transplanted two deciduous larch species, Larix kaempferi and L. olgensis, to study intra- and interspecific competition dynamics in two different types of soil: one from a c. twenty years old L kaempferi plantation (named larch soil) and another from a secondary natural forest (named mixed-forest soil). Experiment 2: Effects of N fertilization on the competition dynamics of the two larch species were tested in the larch soil. In the experiment 1, we hypothesized that the growth of L. kaempferi in the larch soil under no fertilization is inhibited when competing with L olgensis, and their competition relationships may be different in the mixed-forest soil. In both species, the starch and TNC (total nonstructural carbohydrate) concentrations of roots and shoots were significantly higher in the mixed-forest soil when compared to the concentrations in the larch soil without N fertilization (N). The relative competition intensity (RCI) was affected by the soil type. RCI of L. olgensis Was higher than that of L kaempferi in the larch soil N- condition, and RCI of L. kaempferi was higher than that of L. olgensis in the mixed-forest soil in 2015. However, the RCI values did not show significant differences in 2014. In the experiment 2, L. kaempferi showed superior competitiveness in the larch soil N+ condition, with the highest RCI value in 2014, but the RCI value of L kaempferi declined while the RCI value of L. olgensis increased from 2014 to 2015. Both experiments indicated that the benefiting species had higher element (C, N and P) and non-structural carbohydrate (starch and soluble sugar) content accumulation ratios from 2014 to 2015. We found that competition relationships changed between years and depending on conditions. We suggest that mixed plantations and N fertilization together could effectively promote the productivity of Larix. (C) 2016 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Plant Sciences ; Environmental Sciences
研究领域[WOS]	Plant Sciences ; Environmental Sciences & Ecology
关键词[WOS]	STRESS-GRADIENT HYPOTHESIS ; INDUCED TREE MORTALITY ; PLANT COMPETITION ; CARBON LIMITATION ; SPATIAL HETEROGENEITY ; TROPICAL FOREST ; PHOSPHORUS ; NITROGEN ; GROWTH ; MECHANISMS
收录类别	SCI
语种	英语
WOS记录号	WOS:000394077600011
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/18562]
专题	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 610041, Peoples R China 2.Hangzhou Normal Univ, Coll Life & Environm Sci, Hangzhou 310036, Zhejiang, Peoples R China 3.Univ Helsinki, Viikki Plant Sci Ctr, Dept Agr Sci, POB 27, FI-00014 Helsinki, Finland 4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Guo, Qingxue,Zhang, Yuanbin,Wang, Danlin,et al. Influence of soil qualities on intra- and interspecific competition dynamics of Larix kaempferi and L. olgensis[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2017,135:96-105.
APA	Guo, Qingxue,Zhang, Yuanbin,Wang, Danlin,Zhang, Yunxiang,Korpelainen, Helena,&Li, Chunyang.(2017).Influence of soil qualities on intra- and interspecific competition dynamics of Larix kaempferi and L. olgensis.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,135,96-105.
MLA	Guo, Qingxue,et al."Influence of soil qualities on intra- and interspecific competition dynamics of Larix kaempferi and L. olgensis".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 135(2017):96-105.