AR22

  25/03/2018    FHDesign.

AR22    

Site code AR22

Location Usurbil

Region Pais Vasco

Country Spain

Local name Irisasi

Partner HAZI

Site characteristics

Orientation: NE, Slope:50.0°, Soil :CAMBISOLS, Bedrock : marl

PH :4.3,4.6

Hydrology

Flat soil, without rivers

Short History of the site

The arboretum was planted in an old wood of radiate pine, 40 years old and cut down in the summer of the year 2011. All forest labours after the cut (branches clearings, rests stacking in rows) were done by hand, because the strong slopes. The land is property of Diputación Foral of Gipuzkoa, the provincial Government. Its Forest Service gave permission to IKT/Hazi to establish this plantation at the end of 2011.

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Generalities of the site
Species on the site N of Prov. Initial tree N
Acer pseudoplatanus 3 38
Calocedrus decurrens 1 12
Castanea sativa 3 115
Ceratonia siliqua 2 30
Cunninghamia lanceolata 1 11
Cupressus sempervirens 1 15
Eucalyptus globulus 1 28
Eucalyptus gundal 1 15
Eucalyptus nitens 2 27
Fagus sylvatica 2 27
Fagus sylvatica subsp. orientalis 3 47
Larix decidua 5 76
Liquidambar styraciflua 4 54
Pinus brutia 4 40
Pinus caribaea var. hondurensis 1 13
Pinus elliottii 2 27
Pinus nigra subsp. laricio 2 104
Pinus nigra subsp. salzmannii 2 30
Pinus pinea 3 44
Pinus ponderosa 2 26
Pinus sylvestris 4 136
Pinus taeda 2 30
Pseudotsuga menziesii 8 197
Quercus ilex subsp. rotundifolia 3 176
Quercus petraea subsp. petraea 5 140
Quercus robur 1 15
Quercus rubra 2 30
Quercus shumardii 1 14
Quercus suber 3 174
Robinia pseudoacacia 4 60
Sequoia sempervirens 2 31
Thuja plicata 4 61