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Effect of climate change on seasonal water use efficiency in subalpine Abies fabri
Sun Xiang-yang1; Wang Gen-xu1; Huang Mei2; Hu Zhao-yong1; Song Chun-lin1
2017
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
Volume14Issue:1Pages:142-157
Corresponding AuthorWang Gen-xu(wanggx@imde.ac.cn)
AbstractAbies fabri is a typical subalpine dark coniferous forest in southwestern China. Air temperature increases more at high elevation areas than that at low elevation areas in mountainous regions, and climate change ratio is also uneven in different seasons. Carbon gain and the response of water use efficiency (WUE) to annual and seasonal increases in temperature with or without CO2 fertilization were simulated in Abies fabri using the atmospheric-vegetation interaction model (AVIM(2)). Four future climate scenarios (RCP2.6, RCP4.5, RCP6.o and RCP8.5) from the Coupled Model Intercomparison Project Phase 5 (CMIP5) were selectively investigated. The results showed that warmer temperatures have negative effects on gross primary production (GPP) and net primary production (NPP) in growing seasons and positive effects in dormant seasons due to the variation in the leaf area index. Warmer temperatures tend to generate lower canopy WUE and higher ecosystem WUE in Abies fabri. However, warmer temperature together with rising CO2 concentrations significantly increase the GPP and NPP in both growing and dormant seasons and enhance WUE in annual and dormant seasons because of the higher leaf area index (LAI) and soil temperature. The comparison of the simulated results with and without CO2 fertilization shows that CO2 has the potential to partially alleviate the adverse effects of climate warming on carbon gain and WUE in subalpine coniferous forests.
KeywordClimate change Carbon gain Water use efficiency Atmospheric-vegetation interaction model
DOI10.1007/s11629-016-3867-9
WOS KeywordTERRESTRIAL CARBON-CYCLE ; ELEVATED CO2 ; FOREST PRODUCTIVITY ; TEMPERATE STEPPE ; GROWTH ENHANCEMENT ; SOIL RESPIRATION ; TIBETAN PLATEAU ; ATMOSPHERIC CO2 ; FUTURE CLIMATE ; INCREASING CO2
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of China[41401044] ; Natural Science Foundation of China[41310013] ; key research projects of frontier sciences CAS[QYZDJ-SSW-DQC006] ; Chinese Academy of Science ('West Star' project) ; CAS/SAFEA international partnership program for creative research teams[KZZD-EW-TZ-06]
Funding OrganizationNatural Science Foundation of China ; key research projects of frontier sciences CAS ; Chinese Academy of Science ('West Star' project) ; CAS/SAFEA international partnership program for creative research teams
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000394156500011
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64822
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang Gen-xu
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Sun Xiang-yang,Wang Gen-xu,Huang Mei,et al. Effect of climate change on seasonal water use efficiency in subalpine Abies fabri[J]. JOURNAL OF MOUNTAIN SCIENCE,2017,14(1):142-157.
APA Sun Xiang-yang,Wang Gen-xu,Huang Mei,Hu Zhao-yong,&Song Chun-lin.(2017).Effect of climate change on seasonal water use efficiency in subalpine Abies fabri.JOURNAL OF MOUNTAIN SCIENCE,14(1),142-157.
MLA Sun Xiang-yang,et al."Effect of climate change on seasonal water use efficiency in subalpine Abies fabri".JOURNAL OF MOUNTAIN SCIENCE 14.1(2017):142-157.
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