Estimation of rain erosivity index in Caruaru-Pe

The objective is to determine the erosive indexes of rainfall (R), subsidizing information to the agricultural, water and textile sectors so that they can carry out planning and projects with safety aiming at improvements in productivity. The historical rainfall values ​​of 104 years were ceded by the Water and Climate Agency of the State of Pernambuco and by the Superintendency of Development of the Northeast. The data used correspond to the series of years from 1913 to 2016 where the monthly average of each year was calculated and with the values ​​found, determined average values ​​of monthly precipitation in the period of 104 years. There is a need for pre-planning of land for implantation of agricultural projects, so that land displacement does not occur, supported by a monitoring of the changes occurring in the soil, especially in hillside regions, taking into account the contours of the terrain levels, thereby avoiding The silting of rivers and reservoirs. Erosivity follows the rhythm of the rainy season where its maximum occurrence is centered in the months of May, June and July and the minimum occurrences are the months of October, November and December. Caruaru was classified with low annual erosive power.