干旱区生态环境知识资源中心(Arid): Soil Erosion in a Changing Environment over 40 Years in the Merguellil Catchment Area of Central Tunisia

Arid

DOI	10.3390/app132111641
	Soil Erosion in a Changing Environment over 40 Years in the Merguellil Catchment Area of Central Tunisia
	Hermassi, Taoufik; Kotti, Mohamed Lassaad; Jarray, Fathia
通讯作者	Hermassi, T
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2023
卷号	13 期号:21
英文摘要	Soil degradation and erosion in semi-arid regions can significantly impact agricultural development, environmental sustainability, and hydrological balance. Understanding the impacts of land use changes and soil and water conservation (SWC) technique implementation on soil erosion and sediment yield is critical to planning effective watershed management. This study aims to evaluate the impacts of environmental changes in the Merguellil watershed (Central Tunisia) over the last forty years. To achieve this, remote sensing techniques and a geographic information system (GIS) will be employed to classify Landsat images from 1980 to 2020. Additionally, the Revised Universal Soil Loss Equation model will be utilized to estimate soil erosion rates, while the sediment delivery distributed model will be employed for sediment yield modeling. Spatiotemporal changes in land use and land cover and in areas treated with SWC techniques were analyzed as the main factors influencing changes in erosion and sediment yield. The combined impact of land use change and SWC techniques resulted in a decrease in the annual soil erosion rate from 18 to 16 t/ha/year between 1980 and 2020 and in sediment yield from 9.65 to 8.95 t/ha/year for the same period. According to the model's predictions, both soil erosion and sediment yield will experience a slight increase with further degradation of natural vegetation and a reduction in the efficiency of SWC works. This emphasizes the importance of continued efforts in adopting and sustaining SWC techniques, as well as preserving natural vegetation cover, to proactively combat soil degradation and its adverse effects on the environment and communities. Continuous dedication to these measures is crucial to preserving our ecosystem, promoting sustainable practices, and protecting the well-being of both the environment and society.
英文关键词	water erosion GIS remote sensing gross soil loss sediment yield
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001099458300001
WOS关键词	WATER CONSERVATION MEASURES ; LAND-USE ; RESOURCES ; SYSTEMS ; IMPACT ; BASIN ; SWAT
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395371
推荐引用方式 GB/T 7714	Hermassi, Taoufik,Kotti, Mohamed Lassaad,Jarray, Fathia. Soil Erosion in a Changing Environment over 40 Years in the Merguellil Catchment Area of Central Tunisia[J],2023,13(21).
APA	Hermassi, Taoufik,Kotti, Mohamed Lassaad,&Jarray, Fathia.(2023).Soil Erosion in a Changing Environment over 40 Years in the Merguellil Catchment Area of Central Tunisia.APPLIED SCIENCES-BASEL,13(21).
MLA	Hermassi, Taoufik,et al."Soil Erosion in a Changing Environment over 40 Years in the Merguellil Catchment Area of Central Tunisia".APPLIED SCIENCES-BASEL 13.21(2023).