干旱区生态环境知识资源中心(Arid): Intrastorm stemflow variability of a xerophytic shrub within a water-limited arid desert ecosystem of northern China

Arid

DOI	10.3724/SP.J.1226.2017.00495
	Intrastorm stemflow variability of a xerophytic shrub within a water-limited arid desert ecosystem of northern China
	Zhang, YaFeng; Wang, XinPing; Pan, YanXia; Hu, Rui
通讯作者	Zhang, YF
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2017
卷号	9 期号:5 页码:495-502
英文摘要	An increasing number of studies in recent years has elucidated distinguishable effects of stemflow on hydrology and biogeochemistry within a variety of ecosystems. Nonetheless, no known studies have investigated the temporal variability of stemflow volume within discrete rainfall events for xerophytic shrubs. Here, stemflow was monitored at 5-min intervals using a tipping-bucket rain gage during the 2015 growing season for a xerophytic shrub (Caragana korshinskii) within a water-limited arid desert ecosystem of northern China. We characterized the stemflow temporal variability, along with rainfall, and found the temporal heterogeneity of rainfall clearly affected the timing of stemflow inputs into basal soil within discrete rainfall events. The rainfall threshold value for stemflow generation is not a constant value but a range (0.6 similar to 2.1 mm, with an average of 1.1 mm) across rainfall events and is closely associated with the antecedent dry period. Time lags existed between the onset of rainfall and the onset of stemflow, and between rainfall peaks and stemflow peaks. Our findings are expected to be helpful for an improved process-based understanding of the temporal stemflow yield of xerophytic shrubs within water-limited arid desert ecosystems.
英文关键词	stemflow temporal variability xerophytic shrub antecedent dry period time lag
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000428713800009
WOS关键词	RAIN EVENT CHARACTERISTICS ; INTERCEPTION LOSS ; THROUGHFALL ; FOREST ; TREES ; INTENSITY ; TEMPERATE ; VOLUME ; TRAITS ; CANOPY
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332569
作者单位	[Zhang, YaFeng; Wang, XinPing; Pan, YanXia; Hu, Rui] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, YaFeng,Wang, XinPing,Pan, YanXia,et al. Intrastorm stemflow variability of a xerophytic shrub within a water-limited arid desert ecosystem of northern China[J],2017,9(5):495-502.
APA	Zhang, YaFeng,Wang, XinPing,Pan, YanXia,&Hu, Rui.(2017).Intrastorm stemflow variability of a xerophytic shrub within a water-limited arid desert ecosystem of northern China.SCIENCES IN COLD AND ARID REGIONS,9(5),495-502.
MLA	Zhang, YaFeng,et al."Intrastorm stemflow variability of a xerophytic shrub within a water-limited arid desert ecosystem of northern China".SCIENCES IN COLD AND ARID REGIONS 9.5(2017):495-502.