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Spatial dynamics of chestnut blight disease at the plot level using the Ripley’...
Azevedo, João; Coelho, Valentim; Castro, João Paulo; Spínola, Diogo; Gouveia, EugéniaWe used the Ripley’s K function to describe the spatial dynamics of chestnut blight (Cryphonectria parasitica (Murrill) Barr) in sweet chestnut orchards to look at pattern in the pathogen distribution over time and the effect of the location of infected trees on the pattern of disease spread. We used data on infected and dead trees in 2003, 2004, 2005, and 2009 in 4 orchards located in Curopos parish, Portugal....
Spatial dynamics of chestnut blight disease at the plot level using the Ripley’...
Azevedo, João; Coelho, Valentim; Castro, João Paulo; Spínola, Diogo; Gouveia, EugéniaWe used the Ripley’s K function, a second order analysis method, to describe the spatial dynamics of tree infection caused by chestnut blight (Cryphonectria parasitica (Murrill) Barr) in sweet chestnut orchards. Our research question was whether the location of infected trees affected the spatial pattern of spread of the disease in orchards. We also wanted to know ...
Spatial dynamics of sweet chestnut orchards in a disease-affected region
Castro, João Paulo; Gouveia, Eugénia; Spínola, Diogo; Azevedo, JoãoAlong with agriculture abandonment, sweet chestnut (Castanea sativa) diseases are important drivers of landscape dynamics in the northern regions of Portugal. Ink disease (Phytophthora cinnamomi Rands) has affected orchards historically but chestnut blight (Cryphonectria parasitica (Murrill) Barr) became a major cause of tree mortality after its establishment in 1989. We ana...
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