干旱区生态环境知识资源中心(Arid): On the importance of stemflow to the woody plants in drylands: Individual vs. ecosystem scales

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DOI	10.1016/j.jhydrol.2021.126591
	On the importance of stemflow to the woody plants in drylands: Individual vs. ecosystem scales
	Chen, Ning; Zhang, Yafeng; Zhao, Changming
通讯作者	Zhao, CM (corresponding author), Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, 222 Tianshui South Rd, Lanzhou 730000, Gansu, Peoples R China. ; Zhang, YF (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	601
英文摘要	Stemflow has long been recognized as an important ecohydrological process in drylands, and may influence dynamics of woody plants by altering rainfall redistribution. However, quantification of the effects of stemflow on woody plants dynamics remains largely unclear. It is also unknown whether the effects of stemflow are consistent for individual plants and ecosystems where woody plants grow. This study developed an ecohydrological model to explore how stemflow affected individual woody plants and ecosystems, and how the effects changed along a rainfall gradient (10-600 mm) in a dryland ecosystem. This study demonstrated the positive effects of stemflow on woody plants in both individual (by a degree of 16-48%) and ecosystem scales (by a degree of 8-45%). Stemflow started to promote woody plant growth in the individual scale even when annual rainfall was very low (<50 mm), whereas stemflow did not exert strong influences for the whole ecosystems until annual precipitation was higher than 130 mm. However, the effects of stemflow in ecosystem scale might surpass the counterpart in individual scale under some ranges of annual rainfall. Namely, the effects of stemflow in individual and ecosystem scales mismatched. The positive feedback between woody cover and stemflow may cause the unequal effects of stemflow for individual plants and ecosystems. Overall, this study quantified how stemflow affected woody plants in individual and ecosystem scales, which may contribute to dryland restorations by assisting vegetation configuration and being integrated into dynamic global vegetation model.
英文关键词	Stemflow Ecohydrological model Drylands Woody plants Individual-ecosystem scale
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000695816300013
WOS关键词	SOIL-MOISTURE ; INTERCEPTION LOSS ; TENGGER DESERT ; HYDRAULIC LIFT ; RAINFALL ; VEGETATION ; WATER ; THROUGHFALL ; MODEL ; TREE
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363920
作者单位	[Chen, Ning; Zhao, Changming] Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agroecosyst, 222 Tianshui South Rd, Lanzhou 730000, Gansu, Peoples R China; [Chen, Ning; Zhao, Changming] Lanzhou Univ, Gansu Prov Mt Ecosyst Field Observat & Res Stn, 222 Tianshui South Rd, Lanzhou 730000, Gansu, Peoples R China; [Zhang, Yafeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ning,Zhang, Yafeng,Zhao, Changming. On the importance of stemflow to the woody plants in drylands: Individual vs. ecosystem scales[J]. 兰州大学,2021,601.
APA	Chen, Ning,Zhang, Yafeng,&Zhao, Changming.(2021).On the importance of stemflow to the woody plants in drylands: Individual vs. ecosystem scales.JOURNAL OF HYDROLOGY,601.
MLA	Chen, Ning,et al."On the importance of stemflow to the woody plants in drylands: Individual vs. ecosystem scales".JOURNAL OF HYDROLOGY 601(2021).