Community-level economics spectrum of fine-roots driven by nutrient limitations in subalpine forests

doi:10.1111/1365-2745.13125

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 生物多样性与生态系统服务领域 > 中国科学院山地生态恢复与生物资源利用重点实验室

	Community-level economics spectrum of fine-roots driven by nutrient limitations in subalpine forests
	Li, Fanglan 2; Hu, Hui 2; McCormlack, Michael Luke 3; Feng, De Feng 1; Liu, Xin 2; Bao, Weikai 2
刊名	JOURNAL OF ECOLOGY
	2019
卷号	107 期号:3 页码:1238-1249
关键词	acquisition-conservation trade-off below-ground process community functioning ecological strategies environmental factors forest types root traits
ISSN号	0022-0477
DOI	10.1111/1365-2745.13125
产权排序	1
文献子类	Article
英文摘要	Fine-root traits show remarkable variation with plant community structure and environmental shifts, but there is limited understanding of how trait covariation that exists among fine-root traits shifts among different communities, especially in forests. We explored links among the fine-root traits of forest communities to determine whether community root traits shift predictably according to an economics framework along environmental gradients. Measurements of root morphology, nitrogen, phosphorus and carbon concentrations, and measures of standing root densities were collected on fine-roots (diameter <= 2 mm) from 129 forest plots in five subalpine forests. This study demonstrates an existence of a community-level fine-root economics spectrum (REScom) in the subalpine forests, in which specific root length was strongly and positively related to root nitrogen and phosphorus contents, but negatively related to root diameter. Soil nutrient limitation was a major driver of the REScom as changes in soil [N], [P] and [C] contents were related to changes in SRL, root [N], root [P]. Variables related to standing fine-root length and mass were independent of the REScom and were primarily related to forest community structure, particularly in tree closure and herbaceous plant mass. Synthesis. These results indicate two distinct functional dimensions of community fine-root trait variation: resource-use efficiency via changes in root structure and construction, and separately via changes in the standing root system. Identifying shifts in allocation to and investment in fine-roots enhances our understanding of a root and whole-plant economics spectrum and community functioning.
学科主题	Environment/ecology
URL标识	查看原文
WOS关键词	FORAGING STRATEGIES ; FUNCTIONAL PARAMETERS ; PLANT-COMMUNITIES ; TRAIT VARIATION ; LIFE-SPAN ; LEAF ; PATTERNS ; SOIL ; MORPHOLOGY ; DIMENSIONS
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
语种	英语
出版者	WILEY
WOS记录号	WOS:000467417500016
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/31096]
专题	生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
作者单位	1.Chinese Acad Forestry, Res Inst Resource Insects, Kunming, Yunnan, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu, Sichuan, Peoples R China; 3.Morton Arboretum Lisle, Ctr Tree Sci, Lisle, IL USA;
推荐引用方式 GB/T 7714	Li, Fanglan,Hu, Hui,McCormlack, Michael Luke,et al. Community-level economics spectrum of fine-roots driven by nutrient limitations in subalpine forests[J]. JOURNAL OF ECOLOGY,2019,107(3):1238-1249.
APA	Li, Fanglan,Hu, Hui,McCormlack, Michael Luke,Feng, De Feng,Liu, Xin,&Bao, Weikai.(2019).Community-level economics spectrum of fine-roots driven by nutrient limitations in subalpine forests.JOURNAL OF ECOLOGY,107(3),1238-1249.
MLA	Li, Fanglan,et al."Community-level economics spectrum of fine-roots driven by nutrient limitations in subalpine forests".JOURNAL OF ECOLOGY 107.3(2019):1238-1249.