O USO DA GEOESTATÍSTICA PARA AVALIAÇÃO DA VARIABILIDADE ESPACIAL DO NÍVEL DE DEGRADAÇÃO AMBIENTAL EM ITACURUBA (PE)

• Autor(a) principal: Sousa, Sebastião Cavalcante de
• Data de Publicação: 2015
• Outros Autores: Oliveira, Vládia Pinto Vidal de, Souza, Karin Stock de Oliveira, Silva, Josefa Maria Francieli da, Alcântara, Francisco Ramon da Cunha
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista Brasileira de Ciências Ambientais (Online)
• Texto Completo: https://www.rbciamb.com.br/Publicacoes_RBCIAMB/article/view/192
• topic: sulfuric attack, spatial dependence, pedotransfer.

The detection and monitoring of environmental degradation requiresboth low-cost and easy-to-perform techniques. This study intended toconduct sampling and use geostatistics to predict the spatial variability ofenvironmental degradation indicators. The field of study was the microdrainagebasin of the Itacuruba creek in Itacuruba (PE). The georeferencedsamples were subjected to sulfuric acid to determine organic carbon,iron oxide, aluminum oxide and molecular relation of ki and altitude. Thedata were statistically analyzed where only the altitude presented normaldistribution and the organic carbon did not present spatial dependence,which indicated it was a degraded area. The iron oxide content in the soilsurface is a good indicator of an environmental degradation index, and futuresampling may be spaced in 600 m in the Itacuruba region (PE). Geostatisticsis presented as an efficient, low cost predictor for studying environmentaldegradation and monitoring.