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Open AccessArticle

Analysis of the Impact of Land Use Changes on Soil Erosion Intensity and Sediment Yield Using the IntErO Model in the Talar Watershed of Iran

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Department of Watershed Management Engineering, Faculty of Natural Resources, Tarbiat Modares University, Noor 46417-76489, Iran
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Department of Geography, Faculty of Philosophy, University of Montenegro, 81400 Niksic, Montenegro
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Faculty of Management, Comenius University in Bratislava, 82005 Bratislava, Slovakia
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Faculty of Economics and Engineering Management, University Business Academy, 21107 Novi Sad, Serbia
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International Platform for Dryland Research and Education, Arid Land Research Center, Tottori University, Tottori 680-0001, Japan
*
Authors to whom correspondence should be addressed.
Academic Editors: Dimitrios Myronidis, Sopan Patil and Milan Gocić
Water 2021, 13(6), 881; https://doi.org/10.3390/w13060881
Received: 17 February 2021 / Revised: 18 March 2021 / Accepted: 19 March 2021 / Published: 23 March 2021
Land use change is known as one of the main influencing factors on soil erosion and sediment production processes. The objective of the article is to study on how land use change impacts on soil erosion by using Intensity of Erosion and Outflow (IntErO) as a process-oriented soil erosion model. The study has been conducted under land use changes within the period of 1991–2014 in the Talar watershed located in northern Iran. The GIS environment was used to prepare the required maps including Digital Elevation Model (DEM), geology, land use, soil, and drainage network. The climatology data including average annual precipitation and air temperature as well as the volume of torrential rain were extracted from the data of meteorological stations located inside and around the study watershed. The results indicates that, within the period of 1991–2014, the forest area decreased by 12,478.04 ha (6%), while the other land uses including rainfed agriculture, rangeland, irrigated agriculture, and residential area increased by 7248.25, 4481.05, 476.00, and 273.95 ha, respectively. The estimated outflow with 100 year return interval was 432.14 m3 s−1 in 1991, which increased to 446.91 m3 s−1 in 2014. It can be concluded that the probability of larger and/or more frequent floods waves in the Talar River is expected to increase. In addition, the amount of production of erosion material (gross erosion) in the watershed increased from 1,918,186 to 2,183,558 m3 yr−1, and the real soil losses per year (sediment yield) of the watershed increased from 440,482.4 to 501,421.3 m3 yr−1. The results clearly emphasized how the lack of appropriate land management and planning leads to increase the maximum flow discharge and sediment yield of the watershed. View Full-Text
Keywords: land use changes; land management; erosion potential; Gavrilovic method; IntErO; sensitivity analysis; sediment yield; Iran land use changes; land management; erosion potential; Gavrilovic method; IntErO; sensitivity analysis; sediment yield; Iran
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MDPI and ACS Style

Mohammadi, M.; Khaledi Darvishan, A.K.; Spalevic, V.; Dudic, B.; Billi, P. Analysis of the Impact of Land Use Changes on Soil Erosion Intensity and Sediment Yield Using the IntErO Model in the Talar Watershed of Iran. Water 2021, 13, 881. https://doi.org/10.3390/w13060881

AMA Style

Mohammadi M, Khaledi Darvishan AK, Spalevic V, Dudic B, Billi P. Analysis of the Impact of Land Use Changes on Soil Erosion Intensity and Sediment Yield Using the IntErO Model in the Talar Watershed of Iran. Water. 2021; 13(6):881. https://doi.org/10.3390/w13060881

Chicago/Turabian Style

Mohammadi, Maziar; Khaledi Darvishan, Abdulvahed K.; Spalevic, Velibor; Dudic, Branislav; Billi, Paolo. 2021. "Analysis of the Impact of Land Use Changes on Soil Erosion Intensity and Sediment Yield Using the IntErO Model in the Talar Watershed of Iran" Water 13, no. 6: 881. https://doi.org/10.3390/w13060881

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