Data/hora: 03/06/2024 06:36:24

Provedor de dados: | 42
País: | Brazil
Título: | The length of the dry season may be associated with leaf scleromorphism in cerrado plants
Autores: | SOUZA,MARCELO C.; FRANCO,AUGUSTO C.; HARIDASAN,MUNDAYATAN; ROSSATTO,DAVI R.; ARAÚJO,JANAÍNA F. DE; MORELLATO,LEONOR P.C.; HABERMANN,GUSTAVO.
Data: | 2015-09-01
Ano: | 2015
Palavras-chave: | Savanna; Mineral nutrition; Rainfall seasonality; Specific leaf area.
Resumo: | Despite limitations of low fertility and high acidity of the soils, the cerrado flora is the richest amongst savannas. Many cerrado woody species show sclerophyllous leaves, which might be related to the availability of water and nutrients in the soil. To better understand the function and structure of cerrado vegetation within its own variations, we compared two cerrado communities: one in its core region in central Brazil (Brasília, DF) and the other on its southern periphery (Itirapina, SP). We contrasted the length of the dry season, soil fertility rates, leaf concentrations of N, P, K, Ca and Mg and the specific leaf area (SLA) between these communities. The dry season was shorter on the periphery, where the soil was more fertile although more acidic. Plants from the periphery showed higher SLA and higher leaf concentrations of N, P, Ca and Mg. We propose that the higher SLA of plants from the periphery is related to the shorter dry season, which allows better conditions for nutrient uptake.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000401691
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/0001-376520150381
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.87 n.3 2015
Fonte: | info:eu-repo/semantics/openAccess