Altitude (m): 950 Topography: plane Orientation: FLAT Slope: 0.0 Hydrology: there is no permanent watercourse that crosses the plot, although precipitation waters that run through the plot are tributaries of the Ebro Basin, Goose River subbasin South containment: 0 Soil type: LEPTOSOLS Soil sub-type: nudilithic-lithic Parent rock: limestone Soil depth (cm): 60
Climate
Average temperature (°C): 9.0 Average precipitation (mm): 925 Number of frost days: 80 Reference period for climatic data:
History of the site
OWNER: City council of Los Altos POTENTIAL VEGETATION: Series supra-mesomediterranean carpetana western, sanabriense orensano and wet-hiper-wet leonesa siliceous of Quercus pyrenaica (Holco mollis-Querceto pyrenaicae sigmetum) and Series supramediterránea Castilian-Cantabrian and Estellesa-Riojana basophilic of Quercus faginea (Epipactidi helleborines-fagineae Querceto sigmetum), depending of the substrate. (Source: Rivas Martinez, 1987). DESCRIPTION OF THE ENVIRONMENT: The environment of the plot is currently populated by Quercus pyrenaica and dispersed Pinus pinaster plants, Genista hispanica scrub in areas where the limestone substrate replaces the sandstones, and by Quercus faginea. PREVIOUS MANAGEMENT AREA: Previously the area was used as cultivation land. The surroundings were reforested by a mixture of Pinus pinaster and Quercus pyrenaica. CURRENT STATUS OF THE LAND BEFORE PLANTING THE ARBORETUM: The plot was covered by grasslands. Up to 5 or 6 years was cultivated. In August 2003, the area suffered a fire.SUSCEPTIBILITY TO PESTS AND DISEASES: Not detected the existence of particularly virulent pest attacks and other diseases.
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