Data/hora: 29/05/2024 08:51:18

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 23/09/1997
Data da última atualização: | 23/09/1997
Autoria: | EITEN, G.; GOODLAND, R.
Título: | Ecology and management of semi-arid ecosystems in Brazil.
Ano de publicação: | 1979
Fonte/Imprenta: | In: WALKER, B.H., ed. Management of semi-arid ecosystems. Amsterdam: Elsevier, 1979.
Páginas: | p.277-300.
Idioma: | Inglês
Conteúdo: | This chapter treats two large-scale vegetation types in Brazil, the northeastern caatinga, and the central cerrado. The other large-scale vegetation types in the country are the Amazon forest, the Atlantic forest, and the southern Brazil campo limpo. The caatinga experiences a true semi-arid climate, but athough the cerrado would not normally be  classified as a semi-arid type it is in included here for the following reasons. It has a long dry season in which, even with the use of fertilizers, a crop cannot to raised reliably every year without irrigation. In addition, in perhaps one year in five, the wet-season crop is materially reduced or fails over much of the cerrado as a result of insufficient rain in the wet season. Furthermore, dry spells of up to 20 days or more in even a generally good wet season reduce yields in shallow-roted crops so that the crop ecosystem is in fact water-limited although the natural vegetation is adapted to this. Because of these problems the cerrado is here regarded as a semi-arid ecosystem.
Palavras-Chave: | Brasil; Management; Soils.
Thesagro: | Animal Vertebrado; Caatinga; Cerrado; Clima; Ecologia; Ecossistema; Manejo; Pastagem; Propriedade Rural; Réptil; Solo; Uso da Terra; Vegetação.
Thesaurus Nal: | Brazil; climate; ecology; ecosystems; farms; land use; pastures; reptiles; vegetation; vertebrates.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (10027-1) - ADD - PL - -- - CRI4395 -  - CRI4395 - DIS