Data/hora: 02/06/2024 00:49:02

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 16/05/1996
Data da última atualização: | 11/04/2017
Autoria: | RUNDEL, P. W.; PARSONS, D. J.
Título: | Structural changes in chamise (Adenostoma fasciculatum) along a fire-induced age gradient.
Ano de publicação: | 1979
Fonte/Imprenta: | Journal of Range Management, v.32, n.6, p.462-466, Nov. 1979.
Idioma: | Inglês
Conteúdo: | Chamise (Adenostoma fasciculatum) undergoes major structural changes in above-ground biomass along a gradient of increasing stand age since fire. Shrub growth in volume and biomass is rapid through 16 years but levels off in older stands. In this early phase of linear biomass increase, net above-ground productivity has a mean of 430 g.yr-1 for each, or 60 g.m-2 yr-1 over the period of 2 - 16 years stand age. Individuals shrubs at 37 years in Sequoia in the southern Sierra Nevada have more than twice the biomass and four times the annual above-ground productivity of chamise of similar age in the San Gabriel Mountains of Los Angeles County. Between 16 and 37 years, shrub senescence increases with no increase in above-ground biomass and a sharp reduction of available photosynthetic sur- face area. Total stand biomass continues increasing with stand age up to 37 years as shrub biomass increases, with a maximum at approximately 15,000 kg.ha-1. Fine fuels less than 10 mm comprise more than 500 g.m-2 in all chamise canopy ages, providing an  important structural element of flammability.
Palavras-Chave: | Chamise; Fire-induced age gradient; Mudanca estrutural; Plant; Structural changes.
Thesagro: | Biomassa; Fogo; Planta.
Thesaurus Nal: | Adenostoma fasciculatum; biomass.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (31778-1) - ADD - SP - PP - SP2277 -  - 2277 - DIS