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Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China

文献类型：期刊论文

作者Su, Hongxin; Feng, Jinchao3; Axmacher, Jan C.; Sang, Weiguo
刊名SCIENTIFIC REPORTS
出版日期2015
卷号5
ISSN号2045-2322
DOI10.1038/srep09115
文献子类Article
英文摘要We combine the process-based ecosystem model (Biome-BGC) with climate change-scenarios based on both RegCM3 model outputs and historic observed trends to quantify differential effects of symmetric and asymmetric warming on ecosystem net primary productivity (NPP), heterotrophic respiration (Rh) and net ecosystem productivity (NEP) of six ecosystem types representing different climatic zones of northern China. Analysis of covariance shows that NPP is significant greater at most ecosystems under the various environmental change scenarios once temperature asymmetries are taken into consideration. However, these differences do not lead to significant differences in NEP, which indicates that asymmetry in climate change does not result in significant alterations of the overall carbon balance in the dominating forest or grassland ecosystems. Overall, NPP, Rh and NEP are regulated by highly interrelated effects of increases in temperature and atmospheric CO2 concentrations and precipitation changes, while the magnitude of these effects strongly varies across the six sites. Further studies underpinned by suitable experiments are nonetheless required to further improve the performance of ecosystem models and confirm the validity of these model predictions. This is crucial for a sound understanding of the mechanisms controlling the variability in asymmetric warming effects on ecosystem structure and functioning.
学科主题Multidisciplinary Sciences
出版地LONDON
WOS关键词MINIMUM TEMPERATURE TRENDS ; GLOBAL CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; EDDY COVARIANCE ; NIGHT ; CO2 ; RESPONSES ; MAXIMUM ; CYCLE ; PRECIPITATION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000351155000005
出版者NATURE PUBLISHING GROUP
资助机构National Natural Science Foundation of China [30900188] ; Strategy Pioneer Sci-Tech Special Program, Chinese Academy of Science [XDA05050203-02]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/25987]  
专题植被与环境变化国家重点实验室
作者单位1.Minzu Univ China, Coll Life & Environm Sci, Beijing 100081, Peoples R China
2.Axmacher, Jan C.] UCL, UCL Dept Geog, London WC1E 6BT, England
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
推荐引用方式
GB/T 7714		 Su, Hongxin,Feng, Jinchao,Axmacher, Jan C.,et al. Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China[J]. SCIENTIFIC REPORTS,2015,5.
APA Su, Hongxin,Feng, Jinchao,Axmacher, Jan C.,&Sang, Weiguo.(2015).Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China.SCIENTIFIC REPORTS,5.
MLA Su, Hongxin,et al."Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China".SCIENTIFIC REPORTS 5(2015).

入库方式： OAI收割

来源：植物研究所

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