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DOI	10.1002/hyp.13990
	The role of landscape morphology on soil moisture variability in semi-arid ecosystems
	Srivastava, Ankur; Saco, Patricia M.; Rodriguez, Jose F.; Kumari, Nikul; Chun, Kwok Pan; Yetemen, Omer
通讯作者	Yetemen, O
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
英文摘要	Previous studies on semi-arid ecosystems have shown high values of soil moisture variability (SMV) primarily induced by the combined effects of non-uniform precipitation, incoming solar radiation, and soil and vegetation properties. However, the relative impact of these various factors on SMV has been difficult to evaluate due to limited availability of field data. In addition, only a limited number of studies have analysed the role of landscape morphology on SMV. Here we use numerical simulations of a simple hydrological model, the Bucket Grassland Model, to systematically analyse the effect of each contributing factor on SMV on two different landscape morphologies. The two different landform morphologies represent landscapes dominated respectively by either diffusive erosion or fluvial erosion processes. We conducted various simulations driven by a stochastically generated 100-year climate time series, which is long enough to capture climatic fluctuations, in order to understand the effect of various soil moisture controlling factors on the spatiotemporal SMV. Our modelling results show that the fluvial dominated landscapes promote higher spatial SMV than the diffusive dominated ones. Further, the role of landform morphology on SMV is more pronounced in regions where the spatial variability of incoming solar radiation and precipitation is high.
英文关键词	landscape morphology latitudinal variations soil moisture variability solar radiation
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000596745900001
WOS关键词	CATCHMENT SCALE ; TEMPORAL VARIABILITY ; SPATIAL VARIABILITY ; CHIHUAHUAN DESERT ; CLIMATE-CHANGE ; VEGETATION ; WATER ; SURFACE ; MODEL ; INFILTRATION
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328588
作者单位	[Srivastava, Ankur; Saco, Patricia M.; Rodriguez, Jose F.; Kumari, Nikul; Yetemen, Omer] Univ Newcastle, Ctr Water Secur & Environm Sustainabil, Callaghan, NSW, Australia; [Srivastava, Ankur; Saco, Patricia M.; Rodriguez, Jose F.; Kumari, Nikul; Yetemen, Omer] Univ Newcastle, Sch Engn, Callaghan, NSW, Australia; [Chun, Kwok Pan] Hong Kong Baptist Univ, Dept Geog, Hong Kong, Peoples R China; [Yetemen, Omer] Istanbul Tech Univ, Eurasia Inst Earth Sci, Ayazaga Campus, TR-34469 Istanbul, Turkey
推荐引用方式 GB/T 7714	Srivastava, Ankur,Saco, Patricia M.,Rodriguez, Jose F.,et al. The role of landscape morphology on soil moisture variability in semi-arid ecosystems[J].
APA	Srivastava, Ankur,Saco, Patricia M.,Rodriguez, Jose F.,Kumari, Nikul,Chun, Kwok Pan,&Yetemen, Omer.
MLA	Srivastava, Ankur,et al."The role of landscape morphology on soil moisture variability in semi-arid ecosystems".HYDROLOGICAL PROCESSES