1,647
edits
Changes
Jump to navigation
Jump to search
Line 11:
Line 11: − +
→How is it being used?
*In Delaware, two roadside [[Vegetated filter strips|filter strips]] amended with biochar reduced peak flow and runoff volume, but showed no notable change in pollutant concentrations (Center for Watershed Protection, Inc., 2025) <ref>Center for Watershed Protection, Inc. 2025. Biochar for bioretention systems: A Review of Biochar use in Bioretentions, Biofilters, and Bioretention Soil Media. https://www.chesapeakebay.net/files/documents/Appendix-A-Biochar-for-Bioretention-Systems_Literature-Review-031725.pdf</ref>.
*In Delaware, two roadside [[Vegetated filter strips|filter strips]] amended with biochar reduced peak flow and runoff volume, but showed no notable change in pollutant concentrations (Center for Watershed Protection, Inc., 2025) <ref>Center for Watershed Protection, Inc. 2025. Biochar for bioretention systems: A Review of Biochar use in Bioretentions, Biofilters, and Bioretention Soil Media. https://www.chesapeakebay.net/files/documents/Appendix-A-Biochar-for-Bioretention-Systems_Literature-Review-031725.pdf</ref>.
*In field experiments in Europe, biochar reduced nutrient leaching in [[Green roofs|green roofs]], but did not reduce nutrient concentrations in effluent (Kuoppamäki et al., 2016) <ref>Kuoppamäki, K., Hagner, M., Lehvävirta, S. & Setälä, H. 2016. Biochar amendment in the green roof substrate affects runoff quality and quantity. Ecological Engineering, Vol. 88, pp. 1–9.</ref>.
*In field experiments in Europe, biochar reduced nutrient leaching in [[Green roofs|green roofs]], but did not reduce nutrient concentrations in effluent (Kuoppamäki et al., 2016) <ref>Kuoppamäki, K., Hagner, M., Lehvävirta, S. & Setälä, H. 2016. Biochar amendment in the green roof substrate affects runoff quality and quantity. Ecological Engineering, Vol. 88, pp. 1–9.</ref>.
*No evidence was found of biochar being used for LID projects in Ontario yet. However, biochar is recommended on a trial/limited basis as a planting enhancement material for Toronto Green Streets (City of Toronto, 2017) <ref>City of Toronto. 2017. Toronto Green Streets Vegetation Selection Tool. https://www.toronto.ca/wp-content/uploads/2017/11/9844-2017_V-1.0_CoT-Green-Streets_Vegetation-Selection-Tool.xlsx</ref>. If you have used biochar in LID design, please let us know.
*Biochar additions to green roof substrate were tested at the University of Toronto. Biochar-amended sedum green roofs presented the best integrated water quality, including reduced discharge concentrations of dissolved P (Liao et al., 2024)<ref>Liao, W., Sidhu, V., Sifton, M., Margolis, L., Drake, J., Thomas, S. 2024. Biochar and vegetation effects on discharge water quality from organic-substrate green roofs,</ref>.
===Benefits===
===Benefits===