Stochastic forestry harvest planning under soil compaction conditions

• Autores: Rossit, Daniel Alejandro; Pais, Cristóbal; Weintraub, Andrés; Broz, Diego Ricardo; Frutos, Mariano; Tohmé, Fernando Abel
• Año de publicación: 2021
• Idioma: inglés
• Tipo de recurso: artículo
• Materia: Soil compaction; Forest harvest planning; Sustainable management; Stochastic modeling; Rainfall regime; Progressive hedging
• Institución: Universidad Nacional de Misiones

Fil: Rossit, Daniel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Matemática de Bahía Blanca; Argentina.
Fil: Rossit, Daniel Alejandro. Universidad Nacional del Sur. Instituto de Matemática de Bahía Blanca; Argentina.
Fil: Rossit, Daniel Alejandro. Universidad Nacional del Sur. Departamento de Ingeniería (Bahía Blanca); Argentina.
Fil: Pais, Cristóbal. University of California Berkeley. Industrial Engineering and Operations Research; United States.
Fil: Weintraub, Andrés. Universidad de Chile. Departamento de Ingeniería Industrial; Chile.
Fil: Broz, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Broz, Diego Ricardo. Universidad Nacional de Misiones. Facultad de Ciencias Forestales; Argentina.
Fil: Frutos, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Económicas y Sociales del Sur; Argentina.
Fil: Frutos, Mariano. Universidad Nacional del Sur. Instituto de Investigaciones Económicas y Sociales del Sur; Argentina.
Fil: Frutos, Mariano. Universidad Nacional del Sur. Departamento de Ingeniería (Bahía Blanca); Argentina.
Fil: Tohmé, Fernando Abel. Universidad Nacional del Sur. Instituto de Matemática de Bahía Blanca; Argentina.
Fil: Tohmé, Fernando Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Matemática de Bahía Blanca; Argentina.
Fil: Tohmé, Fernando Abel. Universidad Nacional del Sur. Departamento de Economía; Argentina.
We present a study of annual forestry harvesting planning considering the risk of compaction generated by the transit of heavy forestry machinery. Soil compaction is a problem that occurs when the soil loses its natural resistance to resist the movement of machinery, causing the soil to be compacted in excess. This compaction generates unwanted effects on both the ecosystem and its economic sustainability. Therefore, when the risk of compaction is considerable, harvest operations must be stopped, complicating the annual plan and incurring in excessive costs to alleviate the situation. To incorporate the risk of compaction into the planning process, it is necessary to incorporate the analysis of the soil's hydrological balance, which combines the effect of rainfall and potential evapotranspiration. This requires analyzing the uncertainty of rainfall regimes, for which we propose a stochastic model under different scenarios. This stochastic model yields better results than the current deterministic methods used by lumber companies. Initially, the model is solved analyzing monthly scenarios. Then, we change to a biweekly model that provides a better representation of the dynamics of the system. While this improves the performance of the model, this new formulation increases the number of scenarios of the stochastic model. To address this complexity, we apply the Progressive Hedging method, which decomposes the problem in scenarios, yielding high-quality solutions in reasonable time.