Amichev, B.

Bentham, M.

Kulshreshtha, S.

Laroque, C.

Piwowar, J.

Van Rees, K.C.J.

English

University of Saskatchewan Research Archive

Shelterbelts: A Row of Trees or the Next Best Thing to Mitigating GHGs on Prairie LandscapesBeyhan Amichev, Murray Bentham, Suren Kulshreshtha, Colin Laroque, Joseph Piwowar, and Ken C.J. Van ReesCentre for Northern Agroforestry and AfforestationObjective 1. Develop an inventory of shelterbelts systems in SaskatchewanObjective 2. Quantify the potential for shelterbelts to store carbonObjective 3. What are the potential impacts of climate change on future shelterbelt growth patterns for C accumulation? Shelterbelt SpeciesGreen ashHybrid poplarManitoba mapleWhite spruceScots pine Caragana 20 KmType Brown Dark BrownBlack Dark GrayGray TotalLength of shelterbelt (km)Farm 8,488 12,422 8,048 778 19 29,754Field 7,859 10,852 2,892 293 3 21,899Total 16,347 23,274 10,940 1,071 21 51,653Length of digitized shelterbelts in various soil zonesType Conifer Deciduous Mixed Shrubs TotalLength of shelterbelt (km)Farm 4,309 21,876 186 3,384 29,754Field 286 5,741 400 15,472 21,899Total 4,595 27,617 586 18,856 51,653Length of digitized shelterbelts by species grouping• Total number CG planted = 64,573,630;• Overall  CG mapping accuracy = 69%• Total number HP planted = 5,684,728;• Overall  HP mapping accuracy = 57%Tree sampling locations Six species growth comparison(1 row, 2 m spacing, 0% mortality)Total biomass C poolsCarbon Budget ModelTotal dead organic matter (DOM) stocks(Planted 1925-2009)(Planted 1925-2009)Shelterbelts planted 1925-2009Shelterbelts planted since 1990Species Length (km)Total (Mg C)Additions(Mg C)Total (Mg C)Additions(Mg C)Caragana 35,245 7,864,038 3,403,911 1,517,700 421,968Green Ash 5,841 964,207 432,497 329,481 99,988Hybrid Poplar 4,144 1,303,391 684,186 216,767 50,324Manitoba Maple2,646 364,000 212,503 41,894 12,893Scots Pine 1,573 184,214 64,392 51,095 10,740White Spruce 991 131,750 50,440 39,709 6,697Total 50,439 10,811,599 4,847,929 2,196,646 602,701Summary of shelterbelt C inventoryAdditions since 1990 for shelterbelts planted 1925-2009Additions for shelterbelts planted since 1990Species ($Millions)Caragana 144 23Green Ash 19 5Hybrid Poplar 31 3Manitoba Maple 8 0.7Scots Pine 3 0.6White Spruce 2 0.4Total 208 33Value of Added C since 1990 assuming $15 per tonne CO2Past vs. Future Climate (based om CCCMA-A2 scenario)Long-term monthly average Temperature (°C), by soil zoneConclusions• This represents the first modelling of these types of agroforestry systems in Canada.The 3PG and CBM-CFS3 models were applied successfully to estimate tree growth andcarbon sequestration in shelterbelt systems. • These results suggest that planted shelterbelts as a whole could contribute tomitigating greenhouse gas emissions by sequestering C in the biomass, dead organicmatter and soil. • However, if shelterbelts are to play a role in mitigating future greenhouse gasesemissions then further research is warranted to estimate biomass growth and Csequestration potential in a changing climate to determine which species to plant tomaximize carbon sequestration into the future. Centre for Northern Agroforestry and AfforestationAcknowledgementsThis research was done by a team of collaborators from the University of Saskatchewan, University of Regina, and Agriculture and Agri-Food Canada (AAFC). Funding was provided by Agriculture and Agri-Food Canada (AAFC)’s Agricultural Greenhouse Gases Program (AGGP). We thank the AAFC Agroforestry Development Centre at Indian Head, SK for providing the shelterbelt tree data and all the farmers who allowed us to either harvest or measure their shelterbelts.

Shelterbelts: a row of trees or the next best thing to mitigating GHGs on prairie landscapes

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https://harvest.usask.ca/bitstream/10388/8819/1/K.%20Van%20Rees%20et%20al.%2c%202016.pdf

Shelterbelts: a row of trees or the next best thing to mitigating GHGs on prairie landscapes

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