نوع مقاله : پژوهشی
نویسندگان
1 استادیار مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی کرمانشاه
2 استاد پژوهشکده حفاظت خاک و آبخیزداری
3 مربی پژوهشی مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی کرمانشاه
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
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.
کلیدواژه‌ها [English]
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