Statistical detection of spatial plant patterns under the effect of forest use
Identifiers
URI: http://hdl.handle.net/10835/4914
DOI: https://doi.org/10.1142/S1793524512500544
DOI: https://doi.org/10.1142/S1793524512500544
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López García, María Inmaculada![University of Almería authority University of Almería authority](/themes/Mirage2/images/autoridades/autoridad.png)
![University of Almería authority University of Almería authority](/themes/Mirage2/images/autoridades/autoridad.png)
Date
2012Abstract
The analysis of the consequences of land use (in particular forest use) may be considered as a partial step towards an integrated modelling of a land system. In the paper a forest territory is considered, where a gap-cut is made, and after a given time period the eventual change in the spatial distribution of undergrowth plants and tree seedlings is to be detected. Floristic data are collected along a line transect. A method for the detection of the change in the plant distributions along the transect is proposed to see whether this occurs at the geometric frontier of the human intervention.
Since in the considered case the distribution of the change-point estimate is not known, as a substitute of its confidence interval, the so-called change-interval is calculated, using an adaptation of the bootstrap method. As an illustration, for a concrete plant species, the maximum likelihood estimation of the change-point and the calculation of the above mentioned change-interval is presented. ...
Palabra/s clave
Forest use
Forest gap
Plant patches
Edge detection
Change-point
Change-interval
Bootstrap