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Copyright of Revista em Agronegócio e Meio Ambiente is the property of Revista em Agronegocio e Meio Ambiente and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective is to analyze the growth of permanent and temporary crops in Piauí biomes, pointing out the changes that these crops caused in the vegetation cover of the state of Piauí. For this purpose, data from the Municipal Agricultural Survey and satellite images from the Project for the Annual Mapping of Coverage and Use of Soil in Brazil (MapBiomas) were used, referring to the period from 1985 to 2019. The results revealed that permanent plantations practically did not alter the natural cover in the study area. The Savannas represent the most suppressed type of coverage, while in the Caatinga, the main transformations resulted from the use of the land for pastures. In the Cerrado, temporary plantations caused the greatest transitions, especially with regard to soy. Therefore, it is suggested to intensify the monitoring of soybean growth in the south of the state of Piauí. [ABSTRACT FROM AUTHOR]

Copyright of Desenvolvimento e Meio Ambiente is the property of Universidade Federal do Parana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objective is to analyze the economic participation of ten sociobiodiversity products in the Brazilian economy, checking their spatialization in the national territory and examining the operationalization of the Minimum Price Policy for Sociobiodiversity (PGPM-Bio). Data on the value and quantity of production of the ten products under analysis (acai, babassu, rubber, Brazil nuts, carnauba, mangaba, pequi, piassava, pine nut, umbu) were obtained from IBGE, and information about PGPM-Bio, from CONAB. The results showed that the extraction of these resources predominated in the North and Northeast Regions, and the main items, according to the value produced, were the acai and the carnauba powder. The biggest beneficiaries of PGPM-Bio were Maranhão, Bahia, and Amazonas, respectively, with babassu, piassava, and rubber. Also, less than half of the resources devoted to the payment of grants were used. [ABSTRACT FROM AUTHOR]

This study analyzes the Normalized Difference Vegetation Index (NDVI) of municipalities of Piauí and Ceará that extract carnauba dust, comparing it in the years in which the rainfall was similar and evaluates the growth rates of the economic activity and municipal population. For this purpose, the NDVI/MODIS images were used on the Embrapa website, pluviometry data, from National Institute for Space Research, ande economic and demographic variables, from Demographic Census. The images revealed suppression of vegetation in some localities, and this is due to the increase of the urbanization or the productive scale. Thus, it is important to monitor these areas to establish adequate public policies for the conservation of native vegetation, considering the risk of carnaúba removal. [ABSTRACT FROM AUTHOR]