Responses of vertical soil moisture to rainfall pulses and land uses in a typical loess hilly area, China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Responses of vertical soil moisture to rainfall pulses and land uses in a typical loess hilly area, China
	Yu, Y.; Wei, W.; Chen, L. D.; Jia, F. Y.; Yang, L.; Zhang, H. D.; Feng, T. J.
刊名	SOLID EARTH
	2015
卷号	6 期号:2 页码:595-608
英文摘要	Soil moisture plays a key role in vegetation restoration and ecosystem stability in arid and semiarid regions. The response of soil moisture to rainfall pulses is an important hydrological process, which is strongly influenced by land use during the implementation of vegetation restoration. In this study, vertical soil moisture variations of woodland (Pinus tabulaeformis), native grassland (Stipa bungeana), shrubland (Hippophea rhamnoides), cropland (Triticum aestivum) and artificial grassland (Onobrychis viciaefolia) in five soil profiles were monitored in a typical loess hilly area during the 2010 growing season. The results demonstrated that rainfall pulses directly affected soil moisture variation. A multi-peak pattern of soil moisture appeared during the growing season, notably in the surface soil layer. Meanwhile, the response of each vegetation type to rainfall was inconsistent, and a time-lag effect before reaching the peak value was detected, following each heavy rainfall event. The response duration of soil moisture, however, varied markedly with the size of rainfall events. Furthermore, higher soil water content was detected in grassland and shrubland. Woodland was characterized by relatively lower soil moisture values throughout the investigation period. Our research suggests that vegetation restoration efforts should give priority to grassland and shrubland at the research site. We suggest that more studies should be focused on the characteristics of community structure and spatial vegetation distribution on soil moisture dynamics, particularly within the grass and shrub ecosystems.
研究领域[WOS]	Geochemistry & Geophysics
WOS记录号	WOS:000357128400018
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/32368]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Yu, Y.,Wei, W.,Chen, L. D.,et al. Responses of vertical soil moisture to rainfall pulses and land uses in a typical loess hilly area, China[J]. SOLID EARTH,2015,6(2):595-608.
APA	Yu, Y..,Wei, W..,Chen, L. D..,Jia, F. Y..,Yang, L..,...&Feng, T. J..(2015).Responses of vertical soil moisture to rainfall pulses and land uses in a typical loess hilly area, China.SOLID EARTH,6(2),595-608.
MLA	Yu, Y.,et al."Responses of vertical soil moisture to rainfall pulses and land uses in a typical loess hilly area, China".SOLID EARTH 6.2(2015):595-608.