Page 151 - A bird’s-eye view of recreation - Rogier Pouwels

Appendix 5 Variables taken into account in the statistical models (Chapter 4)
Appendices
Variable
Area
Project Soil_poorsand Soil_coarsesand Soil_shiftsand Treedens1-3 Buffer150 Heathland Woodland Ntreespeckm Woodtyp1-4 Noise Pressure1
Pressure2 Pressure2p
Explanation
Area plot in hectares
Sampling method (factor)
Percentage nutrient poor sandy soils
Percentage course sandy soils
Percentage shifting sand dunes
Density of free standing trees in three density classes (1=low, 3=high)
Buffer of 150 meter along forest edge
Percentage of heathland within plot
Percentage of woodland within plot
Diversity of main tree species per square km
Age class of forest: percentage per age class (old forest is 1 and young forest is 4)
Noise level from roads (in dB)
Recreation pressure from residents based on kernel density method (in visitor groups per ha)
Recreation pressure from residents around trail network (visitor groups per ha)
Recreation pressure from residents based around trail network combined with the non- official parking areas at crossings (visitor groups per ha)
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A