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

doi:10.1038/srep09115

	Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China
	Su, Hongxin ; Feng, Jinchao 1; Axmacher, Jan C.; Sang, Weiguo
	2015
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	5
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.
学科领域	Multidisciplinary Sciences
DOI	10.1038/srep09115
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000351155000005
出版者	NATURE PUBLISHING GROUP
文献子类	Article
出版地	LONDON
资助机构	National Natural Science Foundation of China [30900188] ; Strategy Pioneer Sci-Tech Special Program, Chinese Academy of Science [XDA05050203-02]
作者邮箱	swg@ibcas.ac.cn
作品OA属性	Green Published, gold, Green Submitted
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Minzu Univ China, Coll Life & Environm Sci, Beijing 100081, Peoples R China 3.Axmacher, Jan C.] UCL, UCL Dept Geog, London WC1E 6BT, England
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).

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