干旱区生态环境知识资源中心(Arid): Changes in preferential flow caused by root effects in black locust plantations of different stand ages in the semi-arid region of the Loess Plateau

Arid

DOI	10.1016/j.jhydrol.2024.131086
	Changes in preferential flow caused by root effects in black locust plantations of different stand ages in the semi-arid region of the Loess Plateau
	Cai, Lu; Wang, Fei; Lin, Yuanyuan; Long, Qi; Zhao, Yulong; Han, Jianqiao; Ge, Wenyan; Chen, Hao
通讯作者	Wang, F
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2024
卷号	634
英文摘要	Preferential flow significantly influences regional water cycles, and affecting surface and subsurface runoff processes. By comparing soil infiltration characteristics across various forest ages, it can be evaluated how artificial black locust forests on the Loess Plateau contribute to the resilience of soil and water conservation. In this study, we analyzed the spatial distribution characteristics of roots of black locust plants using field investigations and statistical analyses and determined the effects of the root characteristics on the preferential flow in the semi-arid of the Loess Plateau, China. The results showed that the root biomass, root length density, and root volume ratio of young forests were significantly lower than those of middle-aged and mature forests (P < 0.05), and root characteristic parameters varied significantly among different root diameters and soil layers.. The average volume of decayed root channels in mature forests, accounting for approximately 0.16 % in a unit volume of soil, was 3.1 times that of young forests and 4.9 times that of middle-aged forests. Preferential flow increased with forest age in artificial black locust forests. 2-5 mm, 30-40 mm and > 50 mm roots promoted preferential flow to varying degrees, while roots of 5-15 mm inhibited the preferential flow. < 2 mm, 10-30 mm and 40-50 mm roots has no effect on preferential flow (P > 0.05). The size and density of decayed root channels significantly improve soil preferential flow, and the differences among forest ages are linked to the network created by rotten roots. These findings indicate that living roots of different diameters and decayed roots contribute to soil preferential flow to varying extents. The results provided a conceptual basis for understanding the potential impact of vegetation roots on surface runoff during the vegetation restoration ecosystems process in the Loess Plateau.
英文关键词	Black locust Preferential flow Root characteristics Root channel Loess Plateau
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001239329800001
WOS关键词	VEGETATION RESTORATION ; MICROBIAL BIOMASS ; SOIL CARBON ; WATER-FLOW ; FOREST ; DECOMPOSITION ; INFILTRATION ; CHINA ; AFFORESTATION ; MACROPORES
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404576
推荐引用方式 GB/T 7714	Cai, Lu,Wang, Fei,Lin, Yuanyuan,et al. Changes in preferential flow caused by root effects in black locust plantations of different stand ages in the semi-arid region of the Loess Plateau[J],2024,634.
APA	Cai, Lu.,Wang, Fei.,Lin, Yuanyuan.,Long, Qi.,Zhao, Yulong.,...&Chen, Hao.(2024).Changes in preferential flow caused by root effects in black locust plantations of different stand ages in the semi-arid region of the Loess Plateau.JOURNAL OF HYDROLOGY,634.
MLA	Cai, Lu,et al."Changes in preferential flow caused by root effects in black locust plantations of different stand ages in the semi-arid region of the Loess Plateau".JOURNAL OF HYDROLOGY 634(2024).