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Evaluation of sediment yield (Q s ) in Bishezard watershed located southwest of Iran, using PSIAC and MPSIAC models

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  • Abdol Rassoul Zarei
  • Marzieh Mokarram
  • Ali Shabani

Abstract

Soil erosion is one of the most significant forms of environmental problems in the world. PSIAC and MPSIAC models are more applied methods to assess sediment yield and erosion. In this research, these models used to assess annual average sediment yield and annual erosion to Bishezard watershed. Results showed, based on MPSIAC model 92.64% and 5.88% of study area were in the slight and moderate sedimentation classes, respectively. Based on PSIAC model, 75.11% and 11.1% of study area were in the slight and moderate sedimentation classes, respectively. The total sediment yield in the study area based on MPSIAC and PSIAC models 1,439.27 and 1,434.44 (m3/km2year) were calculated, respectively. According to sensitivity analysis, in MPSIAC, topography and runoff erosion factors (with Pearson correlation 0.68 and 0.51) and in PSIAC land use and land cover factors (with Pearson correlation 0.73 and 0.67) were the most sensitive factors.

Suggested Citation

  • Abdol Rassoul Zarei & Marzieh Mokarram & Ali Shabani, 2019. "Evaluation of sediment yield (Q s ) in Bishezard watershed located southwest of Iran, using PSIAC and MPSIAC models," International Journal of Global Environmental Issues, Inderscience Enterprises Ltd, vol. 18(1), pages 1-23.
    • Handle: RePEc:ids:ijgenv:v:18:y:2019:i:1:p:1-23
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    Cited by:

    1. Ali M. Rajabi & A. Yavari & A. Cheshomi, 2022. "Sediment yield and soil erosion assessment by using empirical models for Shazand watershed, a semi-arid area in center of Iran," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 112(2), pages 1685-1704, June.

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