IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland
Sun, Geng1,2; Wang, Zhiyuan1,2,3; Zhu-Barker, Xia4; Zhang, Nannan1,2; Wu, Ning1,2; Liu, Lin5; Lei, Yanbao6
Corresponding AuthorSun, Geng ; Lei, Yanbao
2016
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
EISSN1873-2240
Volume228Pages:180-190
SubtypeArticle
AbstractAs a result of global climate change, frequent and intensive extreme climate events are observed and predicted. These extreme climate events can change ecosystem functions through driving plant growth and mortality, as well as ecological and evolutionary processes into different directions. We simulated a 1-in-100-year extreme precipitation event in different plant growth seasons (i.e. spring, summer, or autumn) to investigate the functional responses of a mesophytic alpine grassland ecosystem to climate change in the Tibetan plateau. The results demonstrated that the seasonal distribution of extreme precipitation is a critical factor in determining soil microbial- and plant-productivity. The response of vegetation net primary productivity (NPP) to extreme precipitation depends on the growth seasons and plant types. Total NPP in the treatments experienced extreme precipitation in the early (spring), mid- (summer) and late (autumn) plant growth seasons were significant lower, higher, and no difference, respectively, compared with the control. Soil temperature and moisture were the key abiotic factors that affected ecosystem functions. For example, in the early plant growth season, no changes of soil moisture and the decreased temperature in response to the extreme precipitation resulted in a substantial decline in NPP. By contrast, in the mid-plant growth season, higher temperature and soil moisture elicited positive synergistic effects on plant growth and soil microbial processes. The increased sensitivity of above-ground NPP and the shift of dominant species from sedges to less palatable forbs might inevitably exaggerate the degradation of this grassland. Nevertheless, a high resilience index in the related ecological processes could potentially contribute to the grassland acclimation and stability, as most parameters returned to the similar levels as in the control after the extreme events ceased. Therefore, several synergistic or antagonistic mechanisms are hypothesized to operate in parallel or at different levels of organization and timescales. Further studies involving a range of different potential scenarios and longer periods are needed to predict the future climate change impacts on mesophytic grassland. (C) 2016 Elsevier B.V. All rights reserved.
KeywordExtreme Precipitation Seasonality Biomass Accumulation And Allocation Resistance Arid Resilience Nutrient Cycling Mesophytic Alpine Grassland
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1016/j.agrformet.2016.07.010
WOS Subject ExtendedAgriculture ; Forestry ; Meteorology & Atmospheric Sciences
Indexed BySCI
WOS KeywordQINGHAI-TIBETAN PLATEAU ; CLIMATE EXTREMES ; ECOLOGICAL RESILIENCE ; RAINFALL REGIMES ; SOUTHERN CHINA ; PLANT TRAITS ; DYNAMICS ; EVENTS ; FORESTS ; CARBON
Language英语
Quartile1区
TOP
WOS SubjectAgronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS IDWOS:000383295200015
Funding OrganizationNational Science Foundation of China(31500346 ; Ministry of Science and Technology of the People's Republic of China(SQ2016YFSF030224) ; Chinese Academy of Sciences (Western Light Program)(KFJ-SW-STS-177) ; Sichuan Science & Technology Bureau(2014HH0017 ; Youth Professor Program of Chengdu Institute of Biology ; 31350110328) ; 2015HH0025 ; 2015JY0231 ; 2016HH0082)
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/17634
Collection山地表生过程与生态调控重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Peoples R China
2.Chinese Acad Sci, Ecol Restorat Biodivers Conservat Key Lab Sichuan, Chengdu Inst Biol, Chengdu 610041, Peoples R China
3.Yunnan Acad Agr Sci, Inst Agr Environm & Resources, Kunming 650205, Peoples R China
4.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA
5.Sichuan Agr Univ, Coll Anim Sci & Technol, Chengdu 611130, Peoples R China
6.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
Recommended Citation
GB/T 7714
Sun, Geng,Wang, Zhiyuan,Zhu-Barker, Xia,et al. Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland[J]. AGRICULTURAL AND FOREST METEOROLOGY,2016,228:180-190.
APA Sun, Geng.,Wang, Zhiyuan.,Zhu-Barker, Xia.,Zhang, Nannan.,Wu, Ning.,...&Lei, Yanbao.(2016).Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland.AGRICULTURAL AND FOREST METEOROLOGY,228,180-190.
MLA Sun, Geng,et al."Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland".AGRICULTURAL AND FOREST METEOROLOGY 228(2016):180-190.
Files in This Item:
File Name/Size DocType Version Access License
Biotic and abiotic c(2100KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, Geng]'s Articles
[Wang, Zhiyuan]'s Articles
[Zhu-Barker, Xia]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, Geng]'s Articles
[Wang, Zhiyuan]'s Articles
[Zhu-Barker, Xia]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, Geng]'s Articles
[Wang, Zhiyuan]'s Articles
[Zhu-Barker, Xia]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Biotic and abiotic controls in determining exceedingly variable responses of ecosystem functions to extreme seasonal precipitation in a mesophytic alpine grassland.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.