Forest diversity restoration for climate change adaptation
in sierra norte de Guadalajara Nature Park

The MUP 276 is located in Sierra Norte de Guadalajara Nature Park, covering 2,583 hectares, and it is owned by the autonomous community. It exhibits a clear state of decline and stagnation in tree growth (both Pinus sylvestris and Quercus pyrenaica), with a low level of regeneration. Since its reforestation in 1972, forest management has been practically absent, and it has suffered two wildfires in the 1990s.

The objective of the action is to improve resilience to climate change by promoting the mixed character of forest habitats (oak groves, beech forests, and birch forests), and the mosaic with Mediterranean high mountain grasslands and shrublands.

Within the “Cuartel del Monte” area, two action zones have been delimited: a reforestation of Pinus uncinata on a grassland habitat of community interest (Canton 16) and a very dense reforestation on Pinus sylvestris terraces (Canton 29).

Delimitation of the action zones in action C5.

Design of adaptation measures

Actions to increase heterogeneity in Canton 29 have been currently designed. Based on the results of the vulnerability index (C1) and following the criteria generated in action C2, the final design of the actions has been refined.

Silviculture is established as a useful tool to achieve adaptation objectives by thinning pine forests with different intensities and by opening clearings or gaps. This will initiate the recovery of some processes halted by spatial competition and lack of light.

The proportion of accompanying species, including Quercus pyrenaica, Quercus petraea, Fagus sylvatica, Betula pubescens, Sorbus aria, Sorbus aucuparia, and Frangula alnus, currently dominated by the pine mass, will increase.

Orthophoto of one of the implementation zones.