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Populus sp. in Northeast Spain

Status: Stable | Version: v1.0.0 (2026-08-28)

General description

  • Description: Dynamic stand model for Populus sp. in Northeast Spain
  • Target Species: Populus sp. (code: 258)
  • Application Region: Northeast Spain

Technical characteristics

  • Model Level: Stand
  • Allows Projection: Yes
  • Projection Time Step: 1, 2, 3, 4, 5 years
  • Notes: The execution period is free (there is no recommended time for the model)

To view the step-by-step sequence of initialization, time projection, and harvest, see the stand-level model calculation flow diagram.

Required variables

To run this model in SIMANFOR, the initial inventory must include the following minimum data:

Plot level (Plots sheet)

  • Inventory and plot IDs
  • age

Sample inventories

You can download the following sample inventories in Excel format to test this model:

Modules and equations

Breakdown of simulated biological processes and their methodological references:

  • Site index / Stand productivity: Rodr铆guez-Puerta et al. (2004)
  • Growth: Rodr铆guez et al. (2010)
  • Height-diameter relationship / height estimation: Rodr铆guez et al. (2010)
  • Tree volume and taper: Blanco & Blanco (2022)

References and documentation

  • How to Cite this Model:

SIMANFOR, 2026. Dynamic stand model for Populus sp. in Northeast Spain (v1.0.0). https://www.simanfor.es

  • SIMANFOR Citation:

Bravo, F., Ord贸帽ez, C., V谩zquez-Veloso, A., Michalakopoulos, S., 2025. SIMANFOR cloud Decision Support System: Structure, content, and applications. Ecological Modelling 499, 110912. https://doi.org/10.1016/j.ecolmodel.2024.110912

  • Technical Documentation: SIMANFOR Models Repository (GitHub)

  • Model Bibliography:

  • Blanco, R, Blanco, J.A. (2022). Ecuaciones simples de altura y volumen para plantaciones de chopo (Populus x euroamericana) para el empoderamiento de los propietarios forestales en la cuenca del Duero. https://8cfe.congresoforestal.es/sites/default/files/actas/8CFE-84.pdf
  • Rodr铆guez-Puerta, F., Blanco, R., Aun贸s, A. (2004). Elaboraci贸n de curvas de productividad a partir de regresi贸n ponderada, aplicaci贸n al chopo (Populus X euramericana) en el Valle del Cinca. Cuadernos de la Sociedad Espanola de Ciencias Forestales. 10.31167/csef.v0i18.9460
  • Rodr铆guez, F., Pem谩n, J., Aun贸s, 脕. (2010). A reduced growth model based on stand basal area. A case for hybrid poplar plantations in northeast Spain. Forest Ecology and Management, 259, 2093-2102. 10.1016/j.foreco.2010.02.021