App. A. Integration tables leading to the variable “Soil erodibility-slope / burnt vegetation protective capacity” (first stages of the Soil erosive susceptibility assessment within the Short-term vulnerability analysis)

Table 1 Permeability-related soil structure

Soil crusting
(PHYS_CHIM) /
Top soil structure (STR_TOP)

Good

/ Normal
Unfavourable / Unfavourable / Unfavourable
Medium / Medium / Medium
Favourable / Good / Medium

Variables derived from the Soil Geographical Database of Euro-Mediterranean Countries, http://eusoils.jrc.ec.europa.eu/

Table 2 Soil erodibility

Permeability-related soil structure
% OM (0-5 cm) / Good / Normal / Unfavourable
Very High / Low / Low / Medium
High / Low / Medium / Medium
Medium / Medium / Medium / Medium
Low / Medium / High / High
Very Low / High / High / High

% OM (0-5 cm): organic matter content in the first 5 cm of top soil

Table 3 Estimation of vegetation height for the main plant community types described

in the Spanish Forest Map

Plant communities / Height
Grasslands, shrublands and other communities with heights ≤ 1.5 m / Small
Shrublands and afforested areas between 1.5 to 3 m height / Medium
Tall shrublands and woodlands (natural or not) with heights ≥ 3 m / High

Table 4 Integration of vegetation Density and Height into the burnt vegetation protective capacity (VPC)

Density
Height / High / Low
High / High / Medium
Medium / High / Low
Small / Medium / Low

Density and Height derived from fields “Evolutionary level” and “Overload” of Spanish Forest Map, respectively

Table 5 Integrated factor Soil erodibility-slope

Slope
High / Medium / Low
Soil erodibility / High / High / High / Medium
Medium / High / Medium / Medium
Low / Medium / Medium / Low

Table 6 Integration of Soil erodibility-slope with VPC factor

VPC / Soil erodibility/Slope
High / Medium / Low
High / Medium / Low / Low
Medium / Medium / Medium / Low
Low / High / Medium / Low

Spanish Forest Map: Mapa forestal de España (1:50 000), 1990-1996. Dirección General de Conservación de la Naturaleza, Ministerio de Agricultura, Pesca y Alimentación, Madrid.