TABLE 1.
Overall listing of variables considered in the study (* variable with VIF>5 and removed because of multicollinearity)
Variable | Description | Source |
---|---|---|
Human population size | Number of resident human population at district level |
Instituto Nacional de Estadística (INE) |
% of crops area | The category includes herbaceous crops different from rice |
SIOSE (Sistema de Información sobre Ocupación del Suelo de España) downloaded from Instituto Geográfico Nacional (IGN) |
% of unproductive area | The category includes rocky outcrops, nude soil, ground without construction | |
% of orchards and other farming area | The category includes citrus fruit plants, non‐citrus fruit plants, olive grove, vineyard and other woody plants. | |
% of pasture area* | The category includes pasture | |
% of urban area | The category includes buildings (as continuous urban areas), and buildings mixed with parks, pedestrian and urban green areas (as discontinuous urban areas) | |
% of water surface area | The category includes water courses and artificial water surfaces | |
% of wood area | The category includes coniferous trees and leafy trees | |
% of shrubs and small bush areas | The category includes scrubs and small brushes |