Data/hora: 09/06/2024 03:36:14

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 06/09/1995
Data da última atualização: | 05/04/2017
Autoria: | RUNDEL, P. W.; PARSONS, D. J.
Título: | Post-fire uptake of nutrients by diverse ephemeral herbs in chamise chaparral.
Ano de publicação: | 1984
Fonte/Imprenta: | Oecologia, v.61, n.2, p.285-288, 1984.
Idioma: | Inglês
Conteúdo: | Diverse populations of ephemeral herbs form the dominant element of community biomass in the first year of growth following a fall burn in chamise chaparral. Ephemeral herbs constituted 337 kg ha-1 of above-ground biomass after the first season of post-fire growth. This was 64% of the total, with the majority of the remaining biomass being in resprounts of Adenostoma fasciculatum. Ephemeral herb biomass following fire in other stands was as high as 1117 kg ha-1. Nutrient contentts of ephemeral herbs were 6.68 kg N ha-1, 0.71 kg P ha-1, 10.5 kg H ha-1, 4.75 kg Ca ha-1 and 0.91 kg Mg ha-1. These were 55, 54, 81, 71 and 70% respectively of the aboveground totals. In the second year following fire, the total herb biomass was 40% higher, but the nutrient pool in above-ground biomass of these herbs was only 30-60% of what it had been the first year. Resprounts of A. fasciculatum and short-lived wood shrubs constituted more than 90% of above-ground biomass as this stage of postfire succession.
Palavras-Chave: | Community; Comunidade; Fire.
Thesagro: | Fogo.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (29624-1) - ADC - SP - PP - SP14609 -  - 14609 - DIS