Universidad de Costa Rica
Grupo Sylvestris, Paseo de la Ermita del Santo
This paper synthesizes the conclusions of the research group on the applicability and improvement of forest inventory results, using auxiliary data from ALS technology, compared to a traditional inventory with field data obtained by sampling with plots. ALS data are a great advance for the improvement of knowledge about forests and forest variables, this improvement of knowledge does not mean that the field work and therefore the costs of a forest inventory are decreased. When the smaller units are considered, ALS methods appear as more advantageous alternatives than those based on classical inventory. True progress in forest management involves maintaining sampling efforts, in some cases reaching the intensity of a traditional inventory, to obtain acceptable estimates of the aggregate variables (V, B, G, Dg, Ho, N) in the AOI (Areas Of Interest), into which the forest can be divided for management. On the other hand, this also allows improving the estimates of the diameter distribution in the total forest and subpopulations (forest or management units) of the area where the sampling was designed.
Forest inventory, ALS, sampling inventory, comparative costs
1. Mauro F, Molina I, García-Abril A, Valbuena R and Ayuga-Téllez E 2016 Remote sensing estimates and measures of uncertainty for forest variables at different aggregation levels Environmetrics-2016. No. 27. - pp. 225-238.
2. Ortuño S, Núñez M V, Mauro F, Gamazo M V, Martín Fernández S and García-Abril A 2013 Estimación de los costes de inventario forestal con y sin información LIDAR Actas del 6º Congreso Forestal Español: Montes: servicios y desarrollo rural (Vitoria (Spain), june 10-14, 2013) 6CFE01-598 p 10.
3. Pascual, C.; Mauro, F.; Garcia-Abril, A.; Manzanera, 2019. Applications of ALS (Airborne Laser Scanning) data to Forest Inventory. Experiences with pine stands from mountainous environments in Spain. In: IOP Conference Series-Earth and Environmental Science. 226, 01/01/2019. ISSN 1755-1307, DOI:https://doi.org/10.1088/1755-1315/226/1/012001. International Jubilee Scientific and Practical Conference on Innovative Directions of Development of the Forestry Complex (FORESTRY).
