![]() For example, fungi based materials often referred to as biogenic are also in fact rapidly renewable but not often described as such. A certain number of materials may also fall into other categories of product or material, such as bio-based or biogenic materials. In this list examples are given and categorised by their indicative harvesting methods, the list is not exhaustive and these types of materials are currently expanding significantly. Short or longer coppicing and pollarding techniques leave tree roots intact, creating less soil disturbance and releasing less soil-based carbon.Īn increasing number of construction materials are being researched and developed from these types of materials as well as their by-products and waste, along with ash or biochar made from them. Shorter harvest rotations mean smaller mass and less invasive techniques to extract the materials, such as low- level stem cutting or growing without soil. ![]() However, soil and root disturbance can lead to the release of soil-based carbon stores. It depends on land use, vegetation and climate but there is more carbon stored globally in soils than in vegetation and the atmosphere combined with higher levels of soil carbon found in bushy, non-woody vegetation than in forests. The term rapidly renewable content describes material that contains biomass harvested in cycles of less than ten years (for certain materials these cycles may vary), as such the biomass can be replenished in the same cycle so has various environmental benefits.Īlthough it depends on the later manufacturing and delivery processes involved, these materials often have lower environmental impacts because of their shorter, regenerative and carbon sequestering cycles, they create less soil disturbance and often require less energy to harvest. 6 Related articles on Designing Buildings. ![]()
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