Restauración silvicultural de los bosques secundarios de Guanacaste - Costa Rica

The silvicultural restoration of secondary forests located in the province of Guanacaste located in the province
of Guanacaste in Costa Rica will be studied, with four specific objectives: the first to promote and accelerate
the biological processes that reduce the time of restoration of the arboreal vegetation, the second to produce
changes in the structure and composition that favor the use of forests, the third to monitor the permanence
and increase of areas with secondary forest in the landscape and the fourth to develop a communication
strategy with the actors of the forestry sector.
To achieve the objectives, there is the first measurement in three blocks established during the execution of
another previous research project; each block has four silvicultural treatments: liberation, enrichment, forest
use and a witness. A forest inventory will be carried out in each of the plots, for each individual greater than 5
cm in diameter, the diameter will be measured at 1.30 m from the ground with a diameter tape, the species
will be identified, and an evaluation of the form will be assigned. The treatment data in each block will be
entered to calculate the basal area per hectare. With this information, the General Management Plan and the
respective operational plans will be prepared; the methodology of the Code of Practices of Sustainability
Standards for the management of secondary forests published in Administrative Resolution RA-SINACCONAC-015-2017 (MINAE, 2018) will be used. The silvicultural restoration of secondary forests located in the
province of Guanacaste in Costa Rica will be studied, with four specific objectives: the first to promote and
accelerate the biological processes that reduce the time of restoration of the arboreal vegetation, the second
to produce changes in the structure and composition that favor the use of forests, the third to monitor the
permanence and increase of areas with secondary forest in the landscape and the fourth to develop a
communication strategy with the actors of the forestry sector. To achieve the objectives, we have the first
measurement in three blocks established during the execution of another previous research project; each block
has three silvicultural treatments: liberation, enrichment, forest use and a control. A forest inventory will be
carried out in each of the plots, for each individual greater than 5 cm in diameter, the diameter will be measured
at 1.30 m from the ground with a diameter tape, the species will be identified and an evaluation of the shape
will be assigned. The treatment data in each block will be entered to calculate the basal area per hectare. With
this information, the General Management Plan and the respective operational plans will be prepared; The
methodology of the Code of Practices of Sustainability Standards for the management of secondary forests
published in Administrative Resolution RA-SINAC-CONAC-015-2017 (MINAE, 2018) will be used. With that
ready, the logistics are prepared, and the forest exploitation will be carried out under strict supervision. Once
the exploitation operation is concluded, the diagnostic sampling will be applied. Once all the silvicultural
treatments have been applied, a measurement of the 20 permanent sampling plots will be carried out in order
to establish a base line of forest cover. Coverage maps will be prepared at each of the sites. An analysis of
variance will be performed for a randomized complete block design (three replications per treatment) with the
information collected, to determine the response of the forest mass according to the treatment applied. A
protocol will be designed to monitor the behavior of the forest mass present in the five established blocks
through the use of unmanned aerial vehicles (UAV).
The impact of the results of this project will be a benchmark for secondary forest management in the Central
American Region.

Estudiar la restauración silvicultural de bosques secundarios en la Estación Experimental Forestal Horizontes en la provincia
de Guanacaste – Costa Rica

Manejo sostenible de bosque natural