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Effects of night warming on spruce root around non-growing season vary with branch order and month

文献类型：期刊论文

作者Yin, Chunying1; Pu, Xiaozhen1,2; Xiao, Qunying1,2; Zhao, Chunzhang1; Liu, Qing1
刊名PLANT AND SOIL
出版日期2014-07
卷号380期号:1-2页码:249-263
关键词C and N concentration Night warming Non-growing season Non-structural carbohydrate Root branch order TTC reducing capacity
ISSN号0032-079X
DOI10.1007/s11104-014-2090-0
产权排序1
文献子类Article
英文摘要The Root is an important plant organ and has high heterogeneity; how it responds to global warming is yet to be answered. This study examined the growth and physiological responses of fine roots to warming around the non-growing season. Plants from 4-year-old Picea asperata were grown under experimental warming conditions. A detailed investigation was conducted by measuring biomass, triphenyltetrazolium chloride (TTC) reducing capacity, carbon (C) and nitrogen (N) concentration, non-structural carbohydrate (NSC) of the primal five branch order roots in early (April) and late (September) growing seasons as well as in the non-growing season (December). Warming promoted fine root growth in April and fine root turnover was mostly in the first four orders. It decreased root C, N concentration in the early and late growing seasons but increased N concentration in the non-growing season. Moreover, it increased NSC concentration (especially soluble sugar) in April but decreased its concentration (soluble sugar and starch) in December. TTC reducing capacity in April was higher than in the other 2 months. The effect of warming on tree roots varied with its branch order and month. The lower order (first three or four order, in general) roots were sensitive to warming, especially in April (early part of growing season) and December (non-growing season). Warming accelerated the carbon input from root to soil. It is indicated that any changes in winter temperatures could alter the sink strength of terrestrial ecosystems considerably. Moreover, TTC reducing capacity could reflect more information about root, but it was more sensitive than N concentration.
学科主题Environment/ecology
URL标识查看原文
WOS关键词LONGLEAF PINE FOREST ; TREE FINE ROOTS ; MEDITERRANEAN SHRUBLAND ; LIFE-SPAN ; POPULUS-DELTOIDES ; CONIFEROUS FOREST ; TEMPERATE STEPPE ; CLIMATE-CHANGE ; ELEVATED CO2 ; SUGAR MAPLE
WOS研究方向Agriculture ; Plant Sciences
语种英语
WOS记录号WOS:000338550500015
出版者SPRINGER
源URL[http://210.75.237.14/handle/351003/29912]  
专题生物多样性与生态系统服务领域_生态系统恢复与生物多样性保育四川省重点实验室
成都生物研究所_生态研究
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
生物多样性与生态系统服务领域_生态研究
作者单位1.Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province,Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu 610041, People’s Republic of China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yin, Chunying,Pu, Xiaozhen,Xiao, Qunying,et al. Effects of night warming on spruce root around non-growing season vary with branch order and month[J]. PLANT AND SOIL,2014,380(1-2):249-263.
APA Yin, Chunying,Pu, Xiaozhen,Xiao, Qunying,Zhao, Chunzhang,&Liu, Qing.(2014).Effects of night warming on spruce root around non-growing season vary with branch order and month.PLANT AND SOIL,380(1-2),249-263.
MLA Yin, Chunying,et al."Effects of night warming on spruce root around non-growing season vary with branch order and month".PLANT AND SOIL 380.1-2(2014):249-263.

入库方式： OAI收割

来源：成都生物研究所

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