Fertility of agricultural soils close to native forest fragments
DOI:
https://doi.org/10.5433/1679-0359.2003v24n2p225Keywords:
Deforestation, Fragments forest, Nutrients, Soil organic matter, Forest edge.Abstract
The government strategy to increase native forest coverage has frequently been to punish land owners that do not abide the environmental legislation. The advantages of the forest presence in agricultural areas are rarely discussed, as is the soil fertilizing potential of close forests. The influence of edge forest in the soil fertility in agricultural areas was verified in five forest fragments of Londrina – State of Paraná. The soil of the area is originated from basaltic rocks, presenting differences in agreement with the intensity of the weathering. The Latossolo Vermelho Distroférrico (oxissol) presenting on the weathered palteaus, Nitossolo Vermelho Distroférrico (ultissol) on the hillsides and small pockets of Neossolo Litólico (entissol) on the most hilly sites. The soil fertility was evaluated, through its components, organic matter (OM), pH, potential acidity, Ca, Mg, K and P, in 5 m intervals to the distance of 50m of the edge forest towards the agricultural area. The organic matter content was higher until 10m from the forest edge, what is a demonstration of the positive effect of forests to the agriculture. Large forest fragments showed larger influence in the amount of nutrients than smaller fragments.
Downloads
Published
How to Cite
Issue
Section
License
O Copyright dos manuscritos publicados pertence ao periódico. Como são publicados em um periódico de acesso aberto, eles estão disponíveis gratuitamente, para uso privado ou para fins educacionais e não comerciais.
A revista tem o direito de fazer, no documento original, alterações referentes às normas lingüísticas, ortografia e gramática, com o objetivo de garantir as normas padrão do idioma e a credibilidade da revista. No entanto, respeitará o estilo de escrita dos autores.
Quando necessário, alterações conceituais, correções ou sugestões serão encaminhadas aos autores. Nesses casos, o manuscrito deve ser submetido a uma nova avaliação após revisão.
A responsabilidade pelas opiniões expressas nos manuscritos é inteiramente dos autores.
