THE SOIL EROSION MANAGEMENT IN FARMLANDS BY USING ACCURATE RAINFALL EROSIVITY MAPS (CASE STUDY: FLOOD SPREADING STATION SOHREYNE GHARACHERIAN IN ZANJAN PROVINCE)

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HEMMATI M.; AHMADI H.; NIKKAMI D.; ZEHTABIAN GH.R.; JAFARI M.

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Journal: PLANT AND ECOSYSTEM Year:2011 | Volume:7 | Issue:28 Page(s): 41-57

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Title

THE SOIL EROSION MANAGEMENT IN FARMLANDS BY USING ACCURATE RAINFALL EROSIVITY MAPS (CASE STUDY: FLOOD SPREADING STATION SOHREYNE GHARACHERIAN IN ZANJAN PROVINCE)

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Keywords

SPLASH EROSIONQ2

SOIL EROSION MANAGEMENTQ2

RAINFALL EROSIVITY INDEXQ2

DRY FARMINGQ2

Abstract

The studies in the world showed that, in spite of using widely of EI30 index, it is as essential as rainfall erosivity factor, in many places, it is not reliable enough and it is necessary to determine the best erosivity factor and also appropriate maps in each region by using geographical condition for further management of farmlands. In this study 18 sediment and runoff plots in two attendance plough along the slope and plough vertical toslope (each of them by three attempts) in DRY FARMING land use and in three classes of slope (0-12,12-20,20-40 percent) in Sohreyne Gharacherian in Zanjan province established. The amounts of runoff and sediment in each plot during fourteen rainfall events, which caused runoff and soil loss, monitored and estimated. The information of intensity and amount of rainfalls were recorded by using data loggers, which located in study station. According to the review of literature on the world, finally 45 RAINFALL EROSIVITY INDEXes recognized. By writing a program in visual basic (VB), each of storm events analyzed and all of RAINFALL EROSIVITY INDEXes for each of storms determined. The statistical studies between each of the indexes and soil loss amounts, by using SPSS program ware done. The final result showed that the I2 (Square of rainfall intensity average) was the best RAINFALL EROSIVITY INDEX and it had maximum correlation with soil loss amount in significant level. Finally, by introducing the processes of rainfall erosivity maps in ARC GIS software, the condition of using rainfall erosivity map, in SOIL EROSION MANAGEMENT was described.

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APA: Copy

HEMMATI, M., AHMADI, H., NIKKAMI, D., ZEHTABIAN, GH.R., & JAFARI, M.. (2011). THE SOIL EROSION MANAGEMENT IN FARMLANDS BY USING ACCURATE RAINFALL EROSIVITY MAPS (CASE STUDY: FLOOD SPREADING STATION SOHREYNE GHARACHERIAN IN ZANJAN PROVINCE). PLANT AND ECOSYSTEM, 7(28), 41-57. SID. https://sid.ir/paper/145430/en

Vancouver: Copy

HEMMATI M., AHMADI H., NIKKAMI D., ZEHTABIAN GH.R., JAFARI M.. THE SOIL EROSION MANAGEMENT IN FARMLANDS BY USING ACCURATE RAINFALL EROSIVITY MAPS (CASE STUDY: FLOOD SPREADING STATION SOHREYNE GHARACHERIAN IN ZANJAN PROVINCE). PLANT AND ECOSYSTEM[Internet]. 2011;7(28):41-57. Available from: https://sid.ir/paper/145430/en

IEEE: Copy

M. HEMMATI, H. AHMADI, D. NIKKAMI, GH.R. ZEHTABIAN, and M. JAFARI, “THE SOIL EROSION MANAGEMENT IN FARMLANDS BY USING ACCURATE RAINFALL EROSIVITY MAPS (CASE STUDY: FLOOD SPREADING STATION SOHREYNE GHARACHERIAN IN ZANJAN PROVINCE),” PLANT AND ECOSYSTEM, vol. 7, no. 28, pp. 41–57, 2011, [Online]. Available: https://sid.ir/paper/145430/en

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