干旱区生态环境知识资源中心(Arid): Modelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid region

Arid

DOI	10.1007/s12517-021-09086-9
	Modelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid region
	Ben Khelifa, Walid; Strohmeier, Stefan; Benabdallah, Sihem; Habaieb, Hamadi
通讯作者	Ben Khelifa, W (corresponding author), Natl Inst Agron Tunisia INAT, 43 Ave Charles Nicolle, Tunis 1082, Tunisia.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:24
英文摘要	In central-northern Tunisia, a combination of dryness, erratic rainfalls, and the undulating terrain create an erosion-prone environment. Soil and water conservation (SWC) measures have been widely applied to reduce the losses of water and top-soil from agricultural fields and thereby increase crop-production and the rural communities' livelihoods. However, the impacts of various SWC interventions are interrelated and difficult to predict. The objective of this study is to evaluate the impacts of Bench Terraces (BTs), in combination with small scale reservoirs (Hill Lakes (HLs)), on runoff and erosion using the Soil and Water Assessment Tool (SWAT) across semi-arid environments of Tunisia. Development and testing of the BT parameter set was performed using monthly surface runoff and multiple bathymetric sediment measurements obtained from the HLs of small BT-treated catchments (< 20 km(2)). The established Bench Terraces (BTs) parameter set was applied to the Rmel watershed (675 km(2)) to eventually test the parameters' performance at the integrated landscape level. SWAT simulation using the defined BT parameter set and 'pond' approaches for the scattered HLs across Rmel produced a 'good' modelling performance indicated by NSE values of 0.89 and 0.91 during calibration and validation. A combination of BTs and HLs overall reduced runoff and sediment yield by 33% and 17% respectively. The Rmel case study demonstrates the robustness of the BT parameter-set obtained from small and quasi-homogeneous training catchments. The enhanced knowledge about SWC impacts, and its consideration in modelling (across scales), will eventually support planning and management in Tunisia's dry and degradation-prone landscapes.
英文关键词	Watershed SWAT Surface runoff Erosion Dry areas
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000728360100004
WOS关键词	BENCH TERRACES ; SEDIMENT YIELD ; QUALITY ; CALIBRATION ; HYDROLOGY
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374013
作者单位	[Ben Khelifa, Walid; Habaieb, Hamadi] Natl Inst Agron Tunisia INAT, 43 Ave Charles Nicolle, Tunis 1082, Tunisia; [Strohmeier, Stefan] Int Ctr Agr Res Dry Areas ICARDA, Beirut, Lebanon; [Benabdallah, Sihem] Ctr Water Res & Technol Borj Cedria Technopk, Route Tourist Soliman,POB 273, Soliman 8020, Tunisia
推荐引用方式 GB/T 7714	Ben Khelifa, Walid,Strohmeier, Stefan,Benabdallah, Sihem,et al. Modelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid region[J],2021,14(24).
APA	Ben Khelifa, Walid,Strohmeier, Stefan,Benabdallah, Sihem,&Habaieb, Hamadi.(2021).Modelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid region.ARABIAN JOURNAL OF GEOSCIENCES,14(24).
MLA	Ben Khelifa, Walid,et al."Modelling the impact of soil and water conservation structures at various scales in Tunisian semi-arid region".ARABIAN JOURNAL OF GEOSCIENCES 14.24(2021).