Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/4767
Título: Prescribed burning impact on forest soil properties – a fuzzy boolean nets approach
Autor: Meira Castro, A C
Carvalho, João P.
Ribeiro, S.
Palavras-chave: Prescribed burning
Forest soil
Soil physical properties
Fuzzy Boolean Nets
Fuzzy systems
Data: 2011
Editora: Elsevier
Relatório da Série N.º: Environmental Research; Vol. 111, Issue 2
Resumo: The Portuguese northern forests are often and severely affected by wildfires during the Summer season. These occurrences significantly affect and negatively impact all ecosystems, namely soil, fauna and flora. In order to reduce the occurrences of natural wildfires, some measures to control the availability of fuel mass are regularly implemented. Those preventive actions concern mainly prescribed burnings and vegetation pruning. This work reports on the impact of a prescribed burning on several forest soil properties, namely pH, soil moisture, organic matter content and iron content, by monitoring the soil self-recovery capabilities during a one year span. The experiments were carried out in soil cover over a natural site of Andaluzitic schist, in Gramelas, Caminha, Portugal, which was kept intact from prescribed burnings during a period of four years. Soil samples were collected from five plots at three different layers (0–3, 3–6 and 6–18) 1 day before prescribed fire and at regular intervals after the prescribed fire. This paper presents an approach where Fuzzy Boolean Nets (FBN) and Fuzzy reasoning are used to extract qualitative knowledge regarding the effect of prescribed fire burning on soil properties. FBN were chosen due to the scarcity on available quantitative data. The results showed that soil properties were affected by prescribed burning practice and were unable to recover their initial values after one year.
URI: http://hdl.handle.net/10400.22/4767
ISSN: 0013-9351
Versão do Editor: http://www.sciencedirect.com/science/article/pii/S0013935110000460
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