Case
The Hemp Nation Group includes hemp as a rotation crop that can remediate polluted soils and build soil health while also serving as a renewable raw material for construction.
Lead Specialist, Global Circular Economy
Case type
Biomaterials, Circular inputs and valorisation, Regenerative solutions
Published
5.4.2024
Traditional crops can leave soil bare between planting seasons, making the soil susceptible to erosion by wind and water, potentially causing sediment build-up in local water bodies and the degradation of arable land. Using synthetic fertilisers and pesticides in traditional crops can also result in nutrient run-off, leading to water pollution and the eutrophication of water bodies.
The Hemp Nation Group uses hemp as a rotation crop, alternating its cultivation with other crops on the same parcel of land over different seasons. Hemp is particularly advantageous as a rotation crop due to its ability to build soil health, avoid soil erosion, promote aeration and break down pollutants (phytosanitation). The harvested hemp can be used in various industrial applications, making it a cornerstone for a regenerative circular economy.
To reduce the need for land and the impact on nature, fast-growing crops can play an important role – even more so if they can be integrated into crop rotation and help build healthier soils.
Hemp can contribute to reducing the conversion of additional natural areas to agriculture, while also reducing biodiversity impacts from conventional construction materials. By incorporating hemp into crop rotation, existing soils can be made more productive. Hemp can also actively absorb and remove pollutants during its growth cycle. This phytosanitation process contributes to soil health, helping to make better use of soils that may otherwise be too polluted to grow certain crops. The low susceptibility of hemp to pests also minimises the need for pesticides, contributing to a more regenerative agricultural system.
By harnessing the versatility of hemp, sustainable alternatives can be created for various applications, reducing dependency on traditional construction materials and meeting growing consumer demand for renewable materials, while also improving the productivity of soils.
This example was picked from the list of Circular solutions for nature, published by Sitra in April 2024. The list contains a curated selection of Europe’s leading companies applying circular economy principles to tackle biodiversity loss.
Click below to see the full list of companies and download the handbook!