干旱区生态环境知识资源中心(Arid): Integrating Sediment (dis)Connectivity into a Sediment Yield Model for Semi-Arid Catchments

Arid

DOI	10.3390/land10111204
	Integrating Sediment (dis)Connectivity into a Sediment Yield Model for Semi-Arid Catchments
	Lodenkemper, Louise; Rowntree, Kate; Hughes, Denis; Slaughter, Andrew
通讯作者	Lodenkemper, L (corresponding author), Zutari Pty Ltd, Africa Water, ZA-1744 Cape Town, South Africa. ; Lodenkemper, L (corresponding author), Rhodes Univ, Geog Dept, ZA-6140 Grahamstown, South Africa.
来源期刊	LAND
EISSN	2073-445X
出版年	2021
卷号	10 期号:11
英文摘要	Soil erosion-associated sedimentation has become a significant global threat to sustainable land and water resources management. Semi-arid regions that characterise much of southern Africa are particularly at risk due to extreme hydrological regimes and sparse vegetative cover. This study aims to address the need for an erosion and sediment delivery model that successfully incorporates our conceptual understanding of sedimentation processes in semi-arid regions, particularly sediment storage and connectivity within a catchment. Priorities of the Semi-arid Sediment Yield Model (SASYM) were simplicity and practical applicability for land and water resource management while adhering to basic geomorphic and hydrological principles. SASYM was able to represent multiple sediment storages within a catchment to effectively represent a change in landscape connectivity over geomorphic timeframes. SASYM used the Pitman rainfall-runoff model disaggregated to a daily timescale, the Modified Universal Soil Loss Equation (MUSLE), incorporating probability function theory and a representation of sediment storages and connectors across a semi-distributed catchment. SASYM was applied to a catchment in the Karoo, South Africa. Although there were limited observed data, there was a historical dataset available for the catchment through dam sedimentation history. SASYM was able to effectively present this history and provide evidence for landscape connectivity change.
英文关键词	semi-arid sediment storage connectivity erosion model
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SSCI
WOS记录号	WOS:000726689500001
WOS关键词	SOIL-EROSION ; SOUTH-AFRICA ; EASTERN CAPE ; SCALE ; PREDICTION ; DELIVERY ; SYSTEMS ; KAROO ; RECONSTRUCTION ; CONNECTIVITY
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/2XILL650/374168
作者单位	[Lodenkemper, Louise] Zutari Pty Ltd, Africa Water, ZA-1744 Cape Town, South Africa; [Lodenkemper, Louise; Rowntree, Kate] Rhodes Univ, Geog Dept, ZA-6140 Grahamstown, South Africa; [Hughes, Denis; Slaughter, Andrew] Rhodes Univ, Inst Water Resources, ZA-6140 Grahamstown, South Africa
推荐引用方式 GB/T 7714	Lodenkemper, Louise,Rowntree, Kate,Hughes, Denis,et al. Integrating Sediment (dis)Connectivity into a Sediment Yield Model for Semi-Arid Catchments[J],2021,10(11).
APA	Lodenkemper, Louise,Rowntree, Kate,Hughes, Denis,&Slaughter, Andrew.(2021).Integrating Sediment (dis)Connectivity into a Sediment Yield Model for Semi-Arid Catchments.LAND,10(11).
MLA	Lodenkemper, Louise,et al."Integrating Sediment (dis)Connectivity into a Sediment Yield Model for Semi-Arid Catchments".LAND 10.11(2021).