This project aimed to measure the area dedicated to the preservation of native vegetation inside rural properties in the state of Piauí. Based on a territorial section (state of Piauí) and the data declared in the Rural Environmental Registry (CAR), available in the Rural Environmental Registry System of the Ministry of the Environment (SICAR), an analysis of the territorial context of the areas dedicated to the preservation of native vegetation in rural areas was carried out using increasing and successive scales, starting by municipality, microregion and state and areas assigned to conservation in each municipality of Piaui. This project was requested by the Association of Soybean Producers of the State of Piauí - Aprosoja Pi.