干旱区生态环境知识资源中心(Arid): Soil Erosion Estimates in Arid Region: A Case Study of the Koutine Catchment, Southeastern Tunisia

Arid

DOI	10.3390/app11156763
	Soil Erosion Estimates in Arid Region: A Case Study of the Koutine Catchment, Southeastern Tunisia
	Ben Zaied, Mongi; Jomaa, Seifeddine; Ouessar, Mohamed
通讯作者	Ben Zaied, M (corresponding author), Univ Gabes, Inst Reg Arides IRA, Lab Eremol & Combating Desertificat LR16IRA01, Medenine 4119, Tunisia.
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2021
卷号	11 期号:15
英文摘要	Soil erosion remains one of the principal environmental problems in arid regions. This study aims to assess and quantify the variability of soil erosion in the Koutine catchment using the RUSLE (Revised Universal Soil Loss Equation) model. The Koutine catchment is located in an arid area in southeastern Tunisia and is characterized by an annual mean precipitation of less than 200 mm. The model was used to examine the influence of topography, extreme rainstorm intensity and soil texture on soil loss. The data used for model validation were obtained from field measurements by monitoring deposited sediment in settlement basins of 25 cisterns (a traditional water harvesting and storage technique) over 4 years, from 2015 to 2018. Results showed that slope is the most controlling factor of soil loss. The average annual soil loss in monitoring sites varies between 0.01 and 12.5 t/ha/y. The storm events inducing the largest soil losses occurred in the upstream part of the Koutine catchment with a maximum value of 7.3 t/ha per event. Soil erosion is highly affected by initial and preceding soil conditions. The RUSLE model reasonably reproduced (R-2 = 0.81) the spatiotemporal variability of measured soil losses in the study catchment during the observation period. This study revealed the importance of using the cisterns in the data-scarce dry areas as a substitute for the classic soil erosion monitoring fields. Besides, combining modeling of outputs and field measurements could improve our physical understanding of soil erosion processes and their controlling factors in an arid catchment. The study results are beneficial for decision-makers to evaluate the existing soil conservation and water management plans, which can be further adjusted using appropriate soil erosion mitigation options based on scientific evidence.
英文关键词	soil erosion RUSLE GIS modeling remote sensing Koutine catchment geospatial analysis
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:000681858300001
WOS关键词	WATER ; CONSERVATION ; RUNOFF ; VARIABILITY ; SPLASH ; CHINA
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/2XILL650/362496
作者单位	[Ben Zaied, Mongi; Ouessar, Mohamed] Univ Gabes, Inst Reg Arides IRA, Lab Eremol & Combating Desertificat LR16IRA01, Medenine 4119, Tunisia; [Jomaa, Seifeddine] UFZ Helmholtz Ctr Environm Res, Dept Aquat Ecosyst Anal & Management, Bruckstr 3a, D-39114 Magdeburg, Germany
推荐引用方式 GB/T 7714	Ben Zaied, Mongi,Jomaa, Seifeddine,Ouessar, Mohamed. Soil Erosion Estimates in Arid Region: A Case Study of the Koutine Catchment, Southeastern Tunisia[J],2021,11(15).
APA	Ben Zaied, Mongi,Jomaa, Seifeddine,&Ouessar, Mohamed.(2021).Soil Erosion Estimates in Arid Region: A Case Study of the Koutine Catchment, Southeastern Tunisia.APPLIED SCIENCES-BASEL,11(15).
MLA	Ben Zaied, Mongi,et al."Soil Erosion Estimates in Arid Region: A Case Study of the Koutine Catchment, Southeastern Tunisia".APPLIED SCIENCES-BASEL 11.15(2021).