干旱区生态环境知识资源中心(Arid): Changes and regulations of net ecosystem CO2 exchange across temporal scales in the Alxa Desert

Arid

DOI	10.1016/j.jaridenv.2019.01.016
	Changes and regulations of net ecosystem CO2 exchange across temporal scales in the Alxa Desert
	Liang, Maowei 1,2; Chen, Jiquan 2; Smith, Nicholas G.3; Bai, Xue 4; Jia, Chengzhen 5; Li, Zhiyong 1; Liang, Cunzhu 1
通讯作者	Liang, Cunzhu
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2019
卷号	164 页码:78-84
英文摘要	Arid ecosystems are an important component of the global carbon cycle. In these ecosystems, plant functional types are particularly important in realizing many ecosystem processes such as the dynamics and regulations of net ecosystem exchange of CO2 (NEE) to the changing environment. Here, we measured the diurnal dynamics of NEE in patches of succulent and non-succulent shrubs over two growing seasons (2012 and 2013) in the Alxa Desert, located in northern China. We find that the interannual difference of NEE was greater for the non succulent shrub than that for he succulent shrub species. Diurnal NEE changes were similar for all species and were more strongly influenced by soil moisture than by temperature. Nonetheless, these environmental factors had a greater influence on non-succulent shrubs than succulent shrubs. Our findings highlight that species with different life history traits have different NEE dynamics and vary by time scales. These dynamics are strongly tied to water availability and plant type-specific water storage capacity, with plants possessing large water storage organs maintaining their physiological functioning better under stressful conditions. Our findings on the interaction between plant type and environment could be used to improve estimates of terrestrial carbon uptake in critical desert ecosystems.
英文关键词	Temporal dynamics Plant functional types Succulence Water use strategy Drought Heat Dryland ecosystems Nitraria Potaninia Krascheninnikovia
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000462416300011
WOS关键词	CRASSULACEAN ACID METABOLISM ; INTERANNUAL VARIABILITY ; SEMIARID ECOSYSTEMS ; CARBON ; FLUXES ; TEMPERATURE ; WATER ; PHOTOSYNTHESIS ; GRASSLAND ; RESPONSES
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216735
作者单位	1.Inner Mongolia Univ, Sch Ecol & Environm, Hohhot 010021, Peoples R China; 2.Michigan State Univ, Dept Geog Environm & Spatial Sci, Ctr Global Change & Earth Observat, E Lansing, MI 48824 USA; 3.Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA; 4.Univ Maine, Sch Forest Resources, Orono, ME 04469 USA; 5.Inner Mongolia Ecol & Agr Metrol Ctr, Hohhot 010021, Peoples R China
推荐引用方式 GB/T 7714	Liang, Maowei,Chen, Jiquan,Smith, Nicholas G.,et al. Changes and regulations of net ecosystem CO2 exchange across temporal scales in the Alxa Desert[J],2019,164:78-84.
APA	Liang, Maowei.,Chen, Jiquan.,Smith, Nicholas G..,Bai, Xue.,Jia, Chengzhen.,...&Liang, Cunzhu.(2019).Changes and regulations of net ecosystem CO2 exchange across temporal scales in the Alxa Desert.JOURNAL OF ARID ENVIRONMENTS,164,78-84.
MLA	Liang, Maowei,et al."Changes and regulations of net ecosystem CO2 exchange across temporal scales in the Alxa Desert".JOURNAL OF ARID ENVIRONMENTS 164(2019):78-84.