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	Physiological differences in rhododendron calophytum seedlings regenerated in mineral soil or on fallen dead wood of different decaying stages
	Ran, Fei1,2; Wu, Chengchun1,2; Peng, Guoquan1,2; Korpelainen, Helena3; Li, Chunyang1
刊名	Plant and soil
	2010-12-01
卷号	337期号:1-2页码:205-215
关键词	Fallen dead wood Regeneration substrate Photosynthetic capacity Water use efficiency Phosphorus
ISSN号	0032-079X
DOI	10.1007/s11104-010-0517-9
通讯作者	Li, chunyang(licy@cib.ac.cn)
英文摘要	Regeneration substrates may differ in water and nutrient availability, and that may lead to differences in physiological traits among seedlings. this assumption was tested by investigating the effects of different regeneration substrates (fallen dead wood and soil) on physiological traits in seedlings of rhododendron calophytum franch. in a subalpine conifer forest, southwest china. the seedlings were divided into three groups according to their regeneration substrates: moderately decayed dead wood (dwm); severely decayed dead wood (dws) and soil (s). the results showed that there were significant differences in leaf mass per area (lma), photosynthetic capacity, non-structural carbohydrate composition (nsc), leaf phosphorus (p) concentration, carbon isotope composition (delta c-13) and ultrastructural morphology, not only between the seedlings regenerated in soil and on dead wood, but also between the seedlings regenerated on dead wood of different decaying stages. overall, the photosynthetic capacity of the seedlings increased in the order of dwm < s < dws, and the long-term water use efficiency (wue) of the seedlings increased in the order of dwm < dws < s. different nutrient and water availability in the substrates might be responsible for these differences. we suggest that severely decomposed fallen dead wood is the most suitable substrate for the regeneration of r. calophytum.
WOS关键词	PICEA-ABIES ; COLORIMETRIC DETERMINATION ; PHOSPHORUS DEFICIENCY ; NUTRIENT LIMITATION ; DROUGHT RESPONSES ; POPULUS-CATHAYANA ; FOREST STRUCTURE ; USE EFFICIENCY ; BOREAL FOREST ; NORWAY SPRUCE
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Soil Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000284159900015
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2406595
专题	中国科学院大学
通讯作者	Li, Chunyang
作者单位	1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Univ Helsinki, Dept Agr Sci, FI-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Ran, Fei,Wu, Chengchun,Peng, Guoquan,et al. Physiological differences in rhododendron calophytum seedlings regenerated in mineral soil or on fallen dead wood of different decaying stages[J]. Plant and soil,2010,337(1-2):205-215.
APA	Ran, Fei,Wu, Chengchun,Peng, Guoquan,Korpelainen, Helena,&Li, Chunyang.(2010).Physiological differences in rhododendron calophytum seedlings regenerated in mineral soil or on fallen dead wood of different decaying stages.Plant and soil,337(1-2),205-215.
MLA	Ran, Fei,et al."Physiological differences in rhododendron calophytum seedlings regenerated in mineral soil or on fallen dead wood of different decaying stages".Plant and soil 337.1-2(2010):205-215.

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