The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2018, Volume 64 Issue 2 (30.06.2018)
| Year : | 2018 |
| Volume : | 64 |
| Issue : | 2 (30.06.2018) |
| Authors : | Maryam POURKARIMI, Shahla MAHMOUDI, Mohamadhasan MASIHABADI, Ebrahim PAZIRA, Abolfazl MOEINI |
| Title : | POSSIBILITY OF USING LAND COMPONENTS FOR ESTIMATION OF SOIL EROSION: A CASE STUDY OF A WATERSHED OF THE SECOND URBAN PHASE, MASHHAD, KHORASAN PROVINCE |
| Abstract : | In most parts of Iran, due to population growth, deforestation, over-grazing of pastures and other factors, soil erosion is more than the world's average and increase as time passes. Therefore, its correct evaluation is very important. The Mashhad-Chenaran is the biggest and most important sub-basin of Khorasan, with an extension of about 223989 acres. Two models, the MPSIAC and the Erosion Potential Method – EPM (Gavrilovic, 1972), used for evaluation of sediment amounts and soil erosion stations showed 2.74 t ha-1 per year. However, the MPSIAC model showed 1.56 t ha-1; whereas the EPM model showed larger amounts of 5.73 t ha-1 per year. In soil erosion studies in watersheds, researchers have often introduced hydrological units of work. In this research, physical-geographical factors such as geological factors, soil type, vegetation, slope were utilized in the erosion estimation models used in addition to the hydrological units in the land components. The present study attempted to measure the erosion and sediment in hydrological units (sub-basins) and land components. The accuracy of estimates of erosion was tested; in order to ensure that the accuracy of the results or possibly the superiority of the homogeneous units to the hydrological units is ensured, it can be used in the same areas in the future. |
| For citation : | Pourkarimi, M., Mahmoudi, S., Masihabadi, M., Pazira, E., Moeini, A. (2018): Possibility of using land components for estimation of soil erosion: A case study of a watershed of the second urban phase, Mashhad, Khorasan province. Agriculture and Forestry, 64 (2): 147-161. DOI:10.17707/AgricultForest.64.2.11 |
| Keywords : | Erosion, Erosion Potential Method – EPM, Land use, MPSIAC, Sediment |
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