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Landscapes Forest and Global Change - ESA - Escola Superior ...

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R.A. Diaz-Varela et al. 2010. Assessment of conservation status in managed chestnut forest<br />

204<br />

Rivas-Martínez, S., 2007. Mapa de series, geoseries y geopermaseries de vegetación de España.<br />

Memoria del mapa de vegetación potencial de España. Itinera Geobotanica, 17: 5-436.<br />

Roberts, D. W. <strong>and</strong> Cooper, S. V., 1989. Concepts <strong>and</strong> techniques of vegetation mapping. L<strong>and</strong><br />

Classifications Based on Vegetation. Applications for Resource Management. USDA<br />

<strong>Forest</strong> Service GTR INT-257. Ogden, UT. Pp: 90-96.<br />

Saura, S. <strong>and</strong> Carballal, P, 2004. Discrimination of native <strong>and</strong> exotic forest patterns through<br />

shape irregularity indices: An analysis in the l<strong>and</strong>scapes of Galicia, Spain. L<strong>and</strong>scape<br />

Ecology. 19: 647-662.<br />

Vogt, P.; Ferrari, J. R.; Lookingbill, T. R.; Gardner, R. H.; Riitters, K. H. <strong>and</strong> Ostapowicz, K.,<br />

2009. Mapping functional connectivity. Ecological Indicators, 9: 64-71.<br />

Wilson, J. P. <strong>and</strong> Gallant, J. C., 2000. Digital Terrain Analysis. In Wilson, J.P. <strong>and</strong> Gallant, J.C.,<br />

Eds: Terrain Analysis: Principles <strong>and</strong> Applications. John Wiley <strong>and</strong> Sons, INC. New<br />

York. Pp: 1-28.<br />

Table 1: Criteria for st<strong>and</strong> quality index. Grey tone indicates canopy coverage <strong>and</strong> stage of st<strong>and</strong><br />

development corresponding to each of the chestnut forest quality classes: light grey quality 1;<br />

medium grey quality 2 <strong>and</strong> dark grey quality 3. Cell values indicates number of patches.<br />

Chestnut canopy coverage<br />

2 3 4 5 6 7 8 9 10<br />

Stage of 2 - 5 2 1 1 1 - - -<br />

st<strong>and</strong> 3 1 56 33 31 40 17 36 5 1<br />

development<br />

4 1 345 202 174 149 152 131 151 50<br />

Table 2: Predictors<br />

Variable group Variable Acronym Reference<br />

patch area (m 2 ) MPS Lang <strong>and</strong> Tiede 2003<br />

patch edge (m) TE Lang <strong>and</strong> Tiede 2003<br />

shape index MSI Lang <strong>and</strong> Tiede 2003<br />

perimeter area ratio MPAR Lang <strong>and</strong> Tiede 2003<br />

fractal dimension MFRACT Lang <strong>and</strong> Tiede 2003<br />

L<strong>and</strong>scape pattern<br />

number of shape characteristic points NSCP Moser et al. 2002<br />

Fraction of Edge Edge Vogt et al., 2007, 2009<br />

Fraction of Core Core Vogt et al., 2007, 2009<br />

Fraction of Perforated Perforated Vogt et al., 2007, 2009<br />

Fraction of Islets Islets Vogt et al., 2007, 2009<br />

Fraction of Bridge Bridge Vogt et al., 2007, 2009<br />

Fraction of Loop Loop Vogt et al., 2007, 2009<br />

Fraction of Branch Branch Vogt et al., 2007, 2009<br />

Elevation (m a.s.l.) DEM Wilson <strong>and</strong> Gallant 2000<br />

Curvature Curv Wilson <strong>and</strong> Gallant 2000<br />

Plan curvature Plancurv Wilson <strong>and</strong> Gallant 2000<br />

Terrain<br />

Profile curvature Profcurv Wilson <strong>and</strong> Gallant 2000<br />

Slope (degrees) Slope Wilson <strong>and</strong> Gallant 2000<br />

Transformed aspect TRASP Roberts <strong>and</strong> Cooper 1989<br />

Terrain shape index Tershp McNab 1989<br />

Contrast Contr Harlick 1973<br />

Correlation Corr Harlick 1973<br />

Dissimilarity Dissim Harlick 1973<br />

Image texture<br />

Entropy Entrop Harlick 1973<br />

Homogeneity Homog Harlick 1973<br />

Mean Mean Harlick 1973<br />

Second Moment Sec_mom Harlick 1973<br />

Variance St<strong>and</strong>_de Harlick 1973<br />

<strong>Forest</strong> <strong>L<strong>and</strong>scapes</strong> <strong>and</strong> <strong>Global</strong> <strong>Change</strong>-New Frontiers in Management, Conservation <strong>and</strong> Restoration. Proceedings of the IUFRO L<strong>and</strong>scape Ecology<br />

Working Group International Conference, September 21-27, 2010, Bragança, Portugal. J.C. Azevedo, M. Feliciano, J. Castro & M.A. Pinto (eds.)<br />

2010, Instituto Politécnico de Bragança, Bragança, Portugal.

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