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Fine roots branch orders of Abies faxoniana respond differentially to warming in a subalpine coniferous forest ecosystem

文献类型：期刊论文

作者Pu, Xiaozhen1,2,3; Yin, Chunying1; Xiao, Qunying1,2; Qiao, Mingfeng1,2; Liu, Qing1
刊名AGROFORESTRY SYSTEMS
出版日期2017-01
卷号91期号:5页码:955-966
关键词Global warming Root architecture Root biomass Total non-structural carbon Subalpine coniferous forest ecosystem
ISSN号0167-4366
DOI10.1007/s10457-016-9970-7
产权排序1
文献子类Article
英文摘要Root is an important plant organ and has high heterogeneity. Global warming could change root and affect belowground ecological processes. There is little information on how fine roots branch orders responds to global change. This study examined the growth, morphological and physiological responses of fine roots of a subalpine coniferous species to warming. We investigated biomass, average diameter, specific root length (SRL), triphenyltetrazolium chloride (TTC) reducing capacity, carbon (C), total non-structural carbon (TNC) and fractions of the primal five branch order roots of Abies faxoniana in April, August, October and December. The decrease in total fine roots biomass after a growing season was significantly greater under warming treatment compared to control, suggesting that warming could accelerate the carbon input from root to soil, but the increment depended on tree species. Warming did not affect average diameter and SRL. Responses of biomass, TTC reducing capacity, C, TNC and fractions to warming significantly differed with root order and month. Significant warming effects were only observed in C and starch concentration of the first order and also TNC and soluble sugar concentration of the first three orders. The results indicated that the lower order roots (the first three orders) were more sensitive to warming, probably because they had more frequent, intense interactions with soil and low defense capability. Thus, global warming may dramatically alter root functions such as nutrients and water uptake as well as the cycle of C and nutrients at the whole subalpine coniferous forest ecosystem.
学科主题Agriculture/agronomy
URL标识查看原文
WOS关键词EASTERN TIBETAN PLATEAU ; SOIL ORGANIC-MATTER ; CHINESE TEMPERATE ; SUGAR MAPLE ; ELEVATED CO2 ; LIFE-SPAN ; CARBON ; TREES ; MORPHOLOGY ; BIOMASS
WOS研究方向Agriculture ; Forestry
语种英语
WOS记录号WOS:000407898300014
出版者SPRINGER
源URL[http://210.75.237.14/handle/351003/29895]  
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, No. 9 Section 4, South Renmin Road, P.O. Box 416, Chengdu 610041, People’s Republic of China;
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China;
3.Shihezi Univ, Key Lab Oasis Ecoagr, Xinjiang Prod & Construct Grp, Shihezi 832003, Peoples R China
推荐引用方式
GB/T 7714		 Pu, Xiaozhen,Yin, Chunying,Xiao, Qunying,et al. Fine roots branch orders of Abies faxoniana respond differentially to warming in a subalpine coniferous forest ecosystem[J]. AGROFORESTRY SYSTEMS,2017,91(5):955-966.
APA Pu, Xiaozhen,Yin, Chunying,Xiao, Qunying,Qiao, Mingfeng,&Liu, Qing.(2017).Fine roots branch orders of Abies faxoniana respond differentially to warming in a subalpine coniferous forest ecosystem.AGROFORESTRY SYSTEMS,91(5),955-966.
MLA Pu, Xiaozhen,et al."Fine roots branch orders of Abies faxoniana respond differentially to warming in a subalpine coniferous forest ecosystem".AGROFORESTRY SYSTEMS 91.5(2017):955-966.

入库方式： OAI收割

来源：成都生物研究所

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