Variations of root and heterotrophic respiration along environmental gradients in Chinas forests

doi:10.1093/jpe/rtt009

	Variations of root and heterotrophic respiration along environmental gradients in Chinas forests
	Li, Pin 1; Yang, Yuanhe1,2 ; Fang, Jingyun1,2
	2013
发表期刊	JOURNAL OF PLANT ECOLOGY
ISSN	1752-9921
卷号	6 期号:5 页码:358-367
摘要	Root and heterotrophic respiration may respond differently to environmental variability, but little evidence is available from large-scale observations. Here we aimed to examine variations of root and heterotrophic respiration across broad geographic, climatic, soil and biotic gradients. We conducted a synthesis of 59 field measurements on root and heterotrophic respiration across Chinas forests. Root and heterotrophic respiration varied differently with forest types, of which evergreen broadleaf forest was significantly different from those in other forest types on heterotrophic respiration but without statistically significant differences on root respiration. The results also indicated that root and heterotrophic respiration exhibited similar trends along gradients of precipitation, soil organic carbon and satellite-indicated vegetation growth. However, they exhibited different relationships with temperature: root respiration exhibited bimodal patterns along the temperature gradient, while heterotrophic respiration increased monotonically with temperature. Moreover, they showed different relationships with MOD17 GPP, with increasing trend observed for root respiration whereas insignificant change for heterotrophic respiration. In addition, root and heterotrophic respiration exhibited different changes along the age sequence, with insignificant change for root respiration and decreasing trend for heterotrophic respiration. Overall, these results suggest that root and heterotrophic respiration may respond differently to environmental variability. Our findings could advance our understanding on the different environmental controls of root and heterotrophic respiration and also improve our ability to predict soil CO2 flux under a changing environment.
关键词	enhanced vegetation index forest age heterotrophic respiration latitude mean annual temperature mean annual precipitation root respiration GPP
学科领域	Plant Sciences ; Ecology ; Forestry
DOI	10.1093/jpe/rtt009
收录类别	SCI
语种	英语
WOS关键词	SOIL RESPIRATION ; TEMPERATURE SENSITIVITY ; AUTOTROPHIC COMPONENTS ; CARBON-DIOXIDE ; ECOSYSTEMS ; RESPONSES ; CLIMATE ; DECOMPOSITION ; PATTERNS ; DEPENDENCE
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000324828500005
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1752-993X
资助机构	National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; National Basic Research Program of China on Global Change(National Basic Research Program of China) ; Ministry of Science Technology
作者邮箱	Yang, Yuanhe/D-1448-2011
作品OA属性	Bronze
引用统计	被引频次：23[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/2S10CLM1/28026
专题	植被与环境变化国家重点实验室
作者单位	1.Peking Univ, Dept Ecol, Beijing 100871, Peoples R China 2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing 100871, Peoples R China 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	Li, Pin,Yang, Yuanhe,Fang, Jingyun. Variations of root and heterotrophic respiration along environmental gradients in Chinas forests[J]. JOURNAL OF PLANT ECOLOGY,2013,6(5):358-367.
APA	Li, Pin,Yang, Yuanhe,&Fang, Jingyun.(2013).Variations of root and heterotrophic respiration along environmental gradients in Chinas forests.JOURNAL OF PLANT ECOLOGY,6(5),358-367.
MLA	Li, Pin,et al."Variations of root and heterotrophic respiration along environmental gradients in Chinas forests".JOURNAL OF PLANT ECOLOGY 6.5(2013):358-367.

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