Forest biodiversity

Biodiversity means the variety of life in genes, species, and in entire ecosystems. Biodiversity is absolutely vital for our planet and humankind. Sustainable forest management safeguards forest health and productivity, and protects forest biodiversity – whilst securing the long-term availability of our renewable resources. At Stora Enso, we are determined to put biodiversity at the top of the forest management agenda. We are working hard to become the industry leaders in biodiversity, and letting this mindset lead how we manage our forests. We’re learning a lot as we move forward with forest owners and collaboration partners. We only harvest in forests where a nature value assessment has been carried out. We audit our biodiversity impact every year and  undertake numerous far-reaching projects to safeguard key species and habitats. We will keep measuring the effects of our work. Our long-term goal is to measure biodiversity holistically to balance forest growth and biodiversity. Together with researchers, we are developing new methods to improve biodiversity as part of everyday forest management and wood sourcing.

Promoting biodiversity in everyday forest management - our indicators

Biodiversity must be adaptively managed and monitored on landscape, habitat and species levels to ensure a holistic approach due to biodiversity’s inherent complexity. We monitor the state of forest biodiversity through selected indicators. In addition, we also follow and audit our own performance in order to minimize our impact on nature and biodiversity. We promote biodiversity in everyday forest management on three spatial scales:

  • Forest landscape level to identify areas for active forest management, set aside areas and adapted forest management

  • Forest habitat level to identify and increase elements important for forest biodiversity, such as deadwood, deciduous trees, valuable habitats

  • Forest species level to improve and create habitats with adaptive forest management, such as controlled burning.

Our biodiversity indicators:

Impact indicators
 Soil damage close to water
 (crossings + damage to edge/buffer zones)
% of affected
 Damages to retention trees, prioritized habitats
 or their edge zones during harvesting
% of affected
 Damage to dead wood % of affected logs >15cm 
 Retention at felling % of volume/area left 
 Creation of new deadwood as high stamps Number ha-1 
State indicators 
 Forest age class distribution % of area in 20 year age
classes or as an index
 Streams with high nature quality Length of stream
 Dispersal barriers
 in streams
Number of barriers
in nature quality streams
 Stands with high age Area of % above 120 and 140 years
 Prioritized habitats  Area (ha) of defined habitat
 rich/dominated stands 
Area of deciduous dominated
and/or rich stands
 Mixed species stands  Area of mixed species forests
 Nature value trees  Number/ha (mean)
 Amount of dead wood Volume/ha (mean)
 Vertical layering % of plots in different layering classes
 Abundance of selected keystone species Species abundance habitat-1
Active biodiversity management
  Area (ha) managed each year

State indicators only apply to own forest in Sweden so far.
Impact indicators apply to all our operations independent on who owns the land.

Meet the Forest team

Read more on biodiversity

Case Arches - managing biodiversity in Sweden

Case Raggbocken - managing biodiversity in Sweden

How we protect biodiversity in Northern forests

98% of the lands we own or manage were covered by forest certification schemes 
120 Green audits carried out in our Swedish forests in 2020 to follow-up the quality of our biodiversity management
90% of the forest work in our own forests in Sweden complied with Stora Enso’s standards for biodiversity and sustainability (Green audits 2020)