Showcase 2021

25-27 de novembro de 2021 | Marina da Glória - Rio de Janeiro, RJ



Tree Shelters Made of Renewable Resources 

Development of innovative tree shelters and concepts to avoid plastic accumulation in forests 


The aim of the joint project is the strategic development of new, innovative, environmentally friendly tree shelters based on organic and residue-free degradable natural products and the removal of previously used, conventional tree shelters.


  • Creation of trial areas in the forest
  • Compilation of a life cycle assessment and development of tree shelter software
  • Development of a concept for the removal of tree shelters
  • Development of new, innovative, environmentally friendly tree shelters based on the organic and residue-free degradable natural product SAVUTEC® (vulcanized fibre)
  • Assurance of complete rotting and avoidance of microplastics in the forest
  • Selection of suitable resources for SAVUTEC® tree shelters and development of suitable formulas on a laboratory scale.
  • Transfer to an industrial production capability
  • Production of tree shelter prototypes with selected tree shelter manufacturers
  • Analysis of degradability and functional testing of the manufactured prototype in field trials
  • Examination of the biological decomposition of tree shelters under aerobic conditions
  • Analysis of the lifespan and ecotoxicological impact of the tree shelters

Status Quo

  • Plastic products have come under public criticism as particles that are not easily biodegradable in the environment
  • Tree shelters are usually made of PE, PP, HDPE, PVC
  • Annual new tree shelters in the double-digit millions make them a relevant factor in forest management.


  • The conversion of the forest into stable mixed stands, the use of rare tree species in the face of climate change and the inexpensive reforestation after climate-related storm events all lead to an expected major increase in the number of tree shelters that will be needed.
  • The strategic construction of stable, plastic-free, biodegradable tree shelters will lead to a consistent reduction in the use of tree shelters made of plastic, for example, PE, PP, HDPE or PVC, and counteract the accumulation of plastic in the forest.

Project Data and Partners

The joint project “Development of innovative tree shelters made of renewable resources and concepts to avoid plastic accumulation in forests” is being implemented in five sub-projects by the following partners (funding code in brackets):

  • Sub-project 1: Definition, Funktionalitätsprüfung und Ökobilanzierung innovativer Wuchshüllen sowie Umsetzungskonzepte zum Rückbau alter Plastikwuchshüllen; Hochschule für Forstwirtschaft Rottenburg (2219NR425)
  • Sub-project 2: Entwicklung einer Wuchshülle auf Basis von Vulkanfiber; Sachsenröder GmbH & Co. KG (2219NR423)
  • Sub-project 3: Entwicklung papierbasierter Werkstoffe für Wuchshüllen aus Vulkanfiber Felix Schoeller Holding GmbH & Co. (2219NR442)
  • Sub-project 4: Entwicklung einer gebrauchsstabilen, biologisch abbaubaren Wuchshülle auf Basis nachwachsender Rohstoffe; TECNARO Gesellschaft zur industriellen Anwendung nachwachsender Rohstoffe mbH (2219NR428)
  • Sub-project 5: Bewertung des Abbauverhaltens von Wuchshüllen auf Basis nachwachsender Rohstoffe Hohenstein Institut für Textilinnovation GmbH (2219NR432)


1 March 2020 to 28 February 2023

Further information can be found here:

News: Abbaubare Wuchshüllen für Waldbäume

If the browsing by deer and co. Is high, growth covers can be helpful in reforestation.
Photo: S. Hein

Growth covers usually consist of petrochemically produced plastics that are difficult to break down in nature.
Photo: S. Hein

In the case of bite-sensitive tree species, forest owners also rely on growth covers within stands.
Photo: S. Hein

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