publication . Article . 2003

Cerrado streams - characteristics of a threatened freshwater ecosystem type on the Tertiary Shields of Central South America

Wantzen, K.;
Open Access English
  • Published: 01 Jan 2003
Abstract
Cerrado is a seasonal savanna type covering 20% of the Brazilian territory, however in large areas its vegetation has been replaced by agriculture. The high plains of the Central Brazilian Shield are incised by a large number of stream valleys. In spite of their small individual size, the extension of the stream valleys is estimated to 5% of the total Cerrado area. Apart from their geographical occurrence, Cerrado streams are characterized by extremely low conductivity, weak buffering capacity and variable pH values which are a consequence of the ion poverty of the soils. The hydrographs show very stable patterns during the dry season and frequently recurring fl...
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Article . 2003
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