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# A determinação do valor médio do índice de

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postos circunvizinhos. A determinação do valor médio do índice de erosividade por meio da relação entre a média mensal e a média anual de precipitação, conforme expresso pela Equação 2, foi proposta por Lombardi Neto e Moldenhauer (1992). Para determinação do fator R da EUPS, soma-se o resultado dos valores mensais do índice de erosividade em cada estação, conforme mostrado na Equação 3, a seguir. EI 30 = 67.355 ( ) r 2 P 0.85 (3) em que: EI 30 é a média mensal do índice de erosividade, em MJ.mm/(ha.h); r é a média do total mensal de precipitação, em mm; P é a média do total anual de precipitação, em mm.

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