Utilize este identificador para referenciar este registo: http://hdl.handle.net/10451/4044
Título: Heterogeneity of soil surface ammonium concentration and other characteristics, related to plant specific variability in a Mediterranean-type ecosystem
Autor: Cruz, Cristina
Bio, Ana M.F.
Jullioti, Aldo
Tavares, Alice
Dias, Teresa
Martins-Loução, Maria Amélia
Palavras-chave: Soil nitrogen availability
Mediterranean
Nitrate
Ammonium
Plant functional types
Data: 2008
Editora: Elsevier
Citação: Environmental Pollution 154 (2008) 414-423
Resumo: Heterogeneity and dynamics of eight soil surface characteristics essential for plantsdammonium and nitrate concentrations, water content, temperature, pH, organic matter, nitrification and ammonification ratesdwere studied in a Mediterranean-type ecosystem on four occasions over a year. Soil properties varied seasonally and were influenced by plant species. Nitrate and ammonium were present in the soil at similar concentrations throughout the year. The positive correlation between them at the time of greatest plant development indicates that ammonium is a readily available nitrogen source in Mediterranean-type ecosystems. The results presented here suggest that plant cover significantly affects soil surface characteristics.
Descrição: ACESSO via B-on: http://dx.doi.org/10.1016/j.envpol.2007.12.007
Peer review: yes
URI: http://dx.doi.org/10.1016/j.envpol.2007.12.007
http://hdl.handle.net/10451/4044
ISSN: 0269-7491
Aparece nas colecções:FC - Artigos em Revistas Internacionais

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