| 北约旦地区降水侵蚀因子的近似估算研究 |
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| 作者姓名： | N. I. ELTAIF M. A. GHARAIBEH F. AL-ZAITAWI M. N. ALHAMAD |
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| 作者单位： | Department of Natural Resources and Environment, Faculty of Agriculture, Jordan University of Science and Technology,P.O. Box 3030, Irbid 22110 Jordan |
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| 基金项目： | Supported by the Deanship of Research, Jordan University of Science and Technology (No. 91/2004) |
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| 摘 要： | Despite being in arid and semi-arid areas, erosion is largely a result of infrequent but heavy rainfall events; therefore, rainfall erosivity data can be used as an indicator of potential erosion risks. The purpose of this study was to investigate the spatial distribution of annual rainfall erosivity in North Jordan. A simplified procedure was used to correlate erosivity factor R values in both the universal soil loss equation (USLE) and the revised universal soil loss equation (RUSLE) with annual rainfall amount or modified Fournier index (Fmod). Pluviometric data recorded at 18 weather stations covering North Jordan were used to predict R values. The annual values of erosivity ranged between 86-779 MJ mm ha-1 h-1 year-1. The northwest regions of Jordan showed the highest annual erosivity values, while the northeastern regions showed the lowest annual erosivity values.
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| 关 键 词： | erosion Fournier index iso-erodent map universal soil loss equation |
| 收稿时间： | 4 January 2010 |
Approximation of rainfall erosivity factors in North Jordan |
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| N. I. ELTAIF,M. A. GHARAIBEH,F. AL-ZAITAWI,M. N. ALHAMAD.Approximation of rainfall erosivity factors in North Jordan[J].Pedosphere,2010,20(6):711-717. |
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| Authors: | N I ELTAIF M A GHARAIBEH F AL-ZAITAWI and M N ALHAMAD |
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| Institution: | Department of Natural Resources and Environment, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 (Jordan);Department of Natural Resources and Environment, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 (Jordan);Department of Natural Resources and Environment, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 (Jordan);Department of Natural Resources and Environment, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110 (Jordan) |
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| Abstract: | Despite being in arid and semi-arid areas, erosion is largely a result of infrequent but heavy rainfall events; therefore rainfall erosivity data can be used as an indicator of potential erosion risks. The purpose of this study was to investigate the spatial distribution of annual rainfall erosivity in North Jordan. A simplified procedure was used to correlate erosivity factor R values in the both universal soil loss equation) USLE) and the revised universal soil loss equation (RUSLE) with annual rainfall amount or modified Fournier index (Fmod). Pluviometric data recorded at 18 weather stations covering North Jordan were used to predict R values. The annual values of erosivity ranged between 86--779 MJ mm ha-1 h-1 year-1. The northwest regions of Jordan showed the highest annual erosivity values, while the northeastern regions showed the lowest annual erosivity values. |
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| Keywords: | erosion fournier index iso-erodent map universal soil loss equation |
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