干旱区生态环境知识资源中心(Arid): Rainfall pattern effects on crusting, infiltration and erodibility in some South African soils with various texture and mineralogy

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DOI	10.4314/wsa.v40i1.7
	Rainfall pattern effects on crusting, infiltration and erodibility in some South African soils with various texture and mineralogy
	Nciizah, Adornis D.; Wakindiki, Isaiah I. C.
通讯作者	Wakindiki, Isaiah I. C.
来源期刊	WATER SA
ISSN	0378-4738
EISSN	1816-7950
出版年	2014
卷号	40 期号:1 页码:57-63
英文摘要	Rainfall characteristics affect crust formation, infiltration rate and erosion depending on intrinsic soil properties such as texture and mineralogy. The current study investigated the effects of rainfall pattern on crust strength, steady state infiltration rate (SSIR) and erosion in soils with various texture and minerals. Soil samples from the top 0.2 m layer were exposed to 60 mm.h(-1) simulated rainfall. The rainfall was applied either as an 8-min single rainstorm (SR) or 4 x 2-min intermittent rainstorms (IR) separated by a 48 h drying period. Rainfall pattern significantly (p < 0.05) affected crust strength, SSIR and erosion. The IR resulted in higher crust strength and SSIR than SR. The effect of rainfall pattern on SSIR was mostly influenced by the primary minerals, namely, quartz. Therefore, the predicted shift from long duration to short duration rainstorms due to climate change is likely to enhance crust formation and soil loss in semi-arid areas such as the Eastern Cape Province of South Africa.
英文关键词	hydrology penetration resistance quartz soil organic matter
类型	Article
语种	英语
国家	South Africa
收录类别	SCI-E
WOS记录号	WOS:000336089900007
WOS关键词	ORGANIC-MATTER ; SEAL FORMATION ; EASTERN CAPE ; HYDRAULIC CONDUCTIVITY ; CLAY MINERALOGY ; RUNOFF ; STABILITY ; PROVINCE ; EROSION
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/2XILL650/185292
作者单位	Univ Ft Hare, Dept Agron, ZA-5700 Alice, South Africa
推荐引用方式 GB/T 7714	Nciizah, Adornis D.,Wakindiki, Isaiah I. C.. Rainfall pattern effects on crusting, infiltration and erodibility in some South African soils with various texture and mineralogy[J],2014,40(1):57-63.
APA	Nciizah, Adornis D.,&Wakindiki, Isaiah I. C..(2014).Rainfall pattern effects on crusting, infiltration and erodibility in some South African soils with various texture and mineralogy.WATER SA,40(1),57-63.
MLA	Nciizah, Adornis D.,et al."Rainfall pattern effects on crusting, infiltration and erodibility in some South African soils with various texture and mineralogy".WATER SA 40.1(2014):57-63.