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Assessing and Determining the best rainfall erosivity indices in Kermanshah Province | ||
| پژوهش های آبخیزداری | ||
| Article 14, Volume 27, Issue 2 - Serial Number 103, July 2014, Pages 131-137 PDF (543.94 K) | ||
| Document Type: Research | ||
| DOI: 10.22092/wmej.2014.106264 | ||
| Authors | ||
| Yahya Parvizi* 1; Davoud Nikkami2; Mohammad Gheituri1; Homayoun Hesadi3 | ||
| 1Assistant professor of agriculture and natural resources research and education center, Kermanshah, Iran | ||
| 2Professor of soil conservation and watershed management research institute, Tehran Iran | ||
| 3Scientific board of agriculture and natural resources research and education center, Kermanshah, Iran | ||
| Abstract | ||
| The effective energy for erosion is called rainfall erosivity, which is rainfall erosion potential and depends on rainfall physical characteristics. Different indices have been developed to quantify the rainfall erosivity. In this research, study fields were conducted in Kermanshah provinces. The study site was Kaboudeh soil conservation research station and two types of land uses were selected for the study including 24 established runoff and sediment plots. The sites were equipped with digital rain gauges, thus necessary rainfall data were collected and used. Based on literature review, 11 rainfall erosivity indices were identified to fit more for erosivity so their efficiency were checked on the study. Best erosivity indices were selected by determination of correlation coefficient between the amount of erosion in each single storm and calculated rainfall erosivity indices. The results indicated that the best index for the study sites was EI60 and AI30 that has maximum correlation coefficient with soil loss. | ||
| Keywords | ||
| soil erosion; rainfall erosiviti index; Kermanshah Province | ||
| References | ||
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