SURVED – Forest bioenergy harvest impact on soil nutrient and acidity status simulated with HD-MINTEQ

Last changed: 22 January 2024
Harvester and felled trees in the forest. Photo.

The HD-MINTEQ model serves as a tool for assessing the surface water acidification impact of forest biofuel extraction. This project aimed to also include nitrate leaching in the HD-MINTEQ model.

By including nitrate leaching in the HD-MINTEQ model, the simulation of acidification and eutrophication impacts of forest fuel extraction is improved.

The SURVED project aimed to increase knowledge of the impact of forest biofuel removal on the acidification and nutrient status of soil and water, focusing on the growth phase and nitrogen dynamics in the new stand. The objective was achieved by incorporating nitrogen effects into the HD-MINTEQ model. Without nitrate leaching in the model, there was a risk of overestimating the effect of acidification during forest biofuel extraction.

The project was based on results from three earlier researchprojects ”Acidification of surface waters due to forest biofuel extraction - development of a classification tool”.

Project members

Stefan Löfgren (project leader) 

Jon Petter Gustafsson

Johan Stendahl

Therese Zetterberg

Bengt Olsson


The project was funded by The Swedish Energy Agency and ran during 2019-2023.