干旱区生态环境知识资源中心(Arid): Causes and Controlling Factors of Valley Bottom Gullies

Arid

DOI	10.3390/land8090141
	Causes and Controlling Factors of Valley Bottom Gullies
	Amare, Selamawit; Keesstra, Saskia; van der Ploeg, Martine; Langendoen, Eddy; Steenhuis, Tammo; Tilahun, Seifu
通讯作者	Keesstra, S (corresponding author), Wageningen Environm Res, Team Soil Water & Land Use, NL-6708 PB Wageningen, Netherlands. ; Keesstra, S (corresponding author), Univ Newcastle, Civil Surveying & Environm Engn, Callaghan, NSW 2308, Australia.
来源期刊	LAND
EISSN	2073-445X
出版年	2019
卷号	8 期号:9
英文摘要	Valley bottomland provides diverse agricultural and ecosystem benefits. Due to concentrated flow paths, they are more vulnerable to gully erosion than hillslope areas. The objective of this review was to show what caused valley bottoms gullies and to present deficiencies in existing rehabilitation measures. From the literature review, we found the following general trends: watershed characteristics determine location of valley bottom gullies; an increase in water transported from the watershed initiates the formation of gullies; the rate of change of the valley bottom gullies, once initiated, depends on the amount of rainfall and the soil and bedrock properties. Especially in humid climates, the presence of subsurface flow greatly enhances bank slippage and advancement of gully heads. Valley bottom gully reclamation measures are generally effective in arid and semi-arid areas with the limited subsurface flow and deep groundwater tables, whereas, for (sub) humid regions, similar remedial actions are not successful as they do not account for the effects of subsurface flows. To ensure effective implementation of rehabilitation measures, especially for humid regions, an integrated landscape approach that accounts for the combined subsurface and surface drainage is needed.
英文关键词	erosion runoff soil saturation sediment badlands landscape restoration valley bottom
类型	Review
语种	英语
开放获取类型	gold, Green Submitted
收录类别	SSCI
WOS记录号	WOS:000487950400012
WOS关键词	SUBHUMID ETHIOPIAN HIGHLANDS ; BLUE NILE BASIN ; THRESHOLD CONDITIONS ; SEDIMENT PRODUCTION ; RUNOFF PROCESSES ; SOIL-EROSION ; HEAD RETREAT ; RIVER ; EVOLUTION ; BADLANDS
WOS类目	Environmental Studies
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369909
作者单位	[Amare, Selamawit] Wageningen Univ & Res, Soil Phys & Land Management Grp, NL-6700 AA Wageningen, Netherlands; [Amare, Selamawit; Steenhuis, Tammo; Tilahun, Seifu] Bahir Dar Univ, Fac Civil & Water Resources Engn, POB 26, Bahir Dar, Ethiopia; [Keesstra, Saskia] Wageningen Environm Res, Team Soil Water & Land Use, NL-6708 PB Wageningen, Netherlands; [Keesstra, Saskia] Univ Newcastle, Civil Surveying & Environm Engn, Callaghan, NSW 2308, Australia; [van der Ploeg, Martine] Wageningen Univ & Res, Hydrol & Quantitat Water Management Grp, NL-6700 AA Wageningen, Netherlands; [Langendoen, Eddy] ARS, USDA, Natl Sedimentat Lab, Oxford, MS 38655 USA; [Steenhuis, Tammo] Cornell Univ, Dept Biol & Environm Engn, Ithaca, NY 14853 USA
推荐引用方式 GB/T 7714	Amare, Selamawit,Keesstra, Saskia,van der Ploeg, Martine,et al. Causes and Controlling Factors of Valley Bottom Gullies[J],2019,8(9).
APA	Amare, Selamawit,Keesstra, Saskia,van der Ploeg, Martine,Langendoen, Eddy,Steenhuis, Tammo,&Tilahun, Seifu.(2019).Causes and Controlling Factors of Valley Bottom Gullies.LAND,8(9).
MLA	Amare, Selamawit,et al."Causes and Controlling Factors of Valley Bottom Gullies".LAND 8.9(2019).