Avaliação da capacidade de infiltração de solos submetidos a diferentes tipos de manejo
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Data
2009-01-01
Autores
Mendonça, Luiz Alberto Ribeiro
Vásquez, Manuel Antonio Navarro
Feitosa, José Valmir [UNESP]
Oliveira, Juliana Filgueiras de
Franca, Raimunda Moreira da
Vásquez, Edilza Maria Felipe
Frischkorn, Horst
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Resumo
Inadequate vegetation and soil management leads to physical changes that affect aquifer recharge. The Araripe Plateau feeds an elevated number of springs on its northern slope; however, there are indications that their yield is decreasing. Through this research, it was studied the infiltration capacity of soils under different types of management. Soil samples from 21 sites were grouped into four groups. Group 1 represents areas of preserved vegetation, the others, anthropized ones. It was observed that soil moisture and infiltration capacity are linearly well correlated with organic matter; mean soil moisture during the dry season was significantly higher for Group 1 than for the other groups, even during the rainy season and anthropized areas show low organic matter contents, soil moisture, and infiltration capacity, indicating modifications in the soil's structure that reduce aquifer recharge.
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Palavras-chave
Araripe plateau, Infiltration capacity, Organic matter, Recharge
Como citar
Engenharia Sanitaria e Ambiental, v. 14, n. 1, p. 89-98, 2009.