The carbon implications of large-scale afforestation of agriculturally marginal land with short-rotation willow in Saskatchewan

被引:42
作者
Amichev, Beyhan Y. [1 ]
Kurz, Werner A. [2 ]
Smyth, Carolyn [2 ]
Van Rees, Ken C. J. [1 ]
机构
[1] Univ Saskatchewan, Ctr No Agroforestry & Afforestn, Saskatoon, SK, Canada
[2] Canadian Forest Serv, Nat Resources Canada, Victoria, BC, Canada
来源
GLOBAL CHANGE BIOLOGY BIOENERGY | 2012年 / 4卷 / 01期
关键词
3PG; afforestation; CBM-CFS3; ecosystem C sequestration; marginal agricultural land; short-rotation crops; SRC; SV1 willow clone; willow growth curves; willow plantations; REPUBLIC-OF-GERMANY; FORMER ARABLE LAND; GROWING POPLAR PLANTATIONS; BIOMASS PRODUCTION; BIOENERGY CROPS; BALSAM POPLARS; NEW-YORK; SOUTHERN QUEBEC; UNITED-STATES; SALIX CLONES;
D O I
10.1111/j.1757-1707.2011.01110.x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Afforestation with short-rotation coppice (SRC) willow plantations for the purpose of producing bioenergy feedstock was contemplated as one potential climate change mitigation option. The objectives of this study were to assess the magnitude of this mitigation potential by addressing: (i) the land area potentially available for SRC systems in the province of Saskatchewan, Canada; (ii) the potential biomass yields of SRC plantations; and (iii) the carbon implications from such a large-scale afforestation program. Digital soils and land-use data were used to identify, map, and group into clusters of similar polygons 2.12 million hectares (Mha) of agriculturally marginal land that was potentially suitable for willow in the Boreal Plains and Prairies ecozones in Saskatchewan. The Physiological Principles in Predicting Growth (3PG) model was calibrated with data from SRC experiments in Saskatchewan, to quantify potential willow biomass yields, and the Carbon Budget Model of the Canadian Forest Sector (CBM-CFS3), was used to simulate stand and landscape-level C fluxes and stocks. Short-rotation willow plantations managed in 3 similar to year rotations for seven consecutive harvests (21 years) after coppicing at Year 1 produced about 12 Mg C ha(-1) yr(-1) biomass. The more significant contribution to the C cycle was the cumulative harvest. After 44 similar to years, the potential average cumulative harvested biomass C in the Prairies was 244 Mg C ha(-1) (5.5 Mg C ha(-1) yr(-1)) about 20% higher than the average for the Boreal Plains, 203Mg C ha(-1) (4.6 Mg C ha(-1) yr(-1)). This analysis did not consider afforestation costs, rate of establishment of willow plantations, and other constraints, such as drought and disease effects on biomass yield. The results must therefore be interpreted as a biophysical mitigation potential with the technical and economic potential being both lower than our estimates. Nevertheless, short-rotation bioenergy plantations offer one potential mitigation option to reduce the rate of CO2 accumulation in the earth's atmosphere and further research is needed to operationalise such a mitigation effort.
引用
收藏
页码:70 / 87
页数:18
相关论文
共 55 条
  • [1] Abrahamson L.P., 2002, WILLOW BIOMASS PRODU
  • [2] Sustainability and environmental issues associated with willow bioenergy development in New York (USA)
    Abrahamson, LP
    Robison, DJ
    Volk, TA
    White, EH
    Neuhauser, EF
    Benjamin, WH
    Peterson, JM
    [J]. BIOMASS & BIOENERGY, 1998, 15 (01) : 17 - 22
  • [3] A novel approach to simulate growth of multi-stem willow in bioenergy production systems with a simple process-based model (3PG)
    Amichev, Beyhan Y.
    Hangs, Ryan D.
    Van Rees, Ken C. J.
    [J]. BIOMASS & BIOENERGY, 2011, 35 (01) : 473 - 488
  • [4] Hybrid poplar growth in bioenergy production systems: Biomass prediction with a simple process-based model (3PG)
    Amichev, Beyhan Y.
    Johnston, Mark
    Van Rees, Ken C. J.
    [J]. BIOMASS & BIOENERGY, 2010, 34 (05) : 687 - 702
  • [5] Development and validation of aboveground biomass estimations for four Salix clones in central New York
    Arevalo, Carmela B. M.
    Volk, Timothy A.
    Bevilacqua, Eddie
    Abrahamson, Lawrence
    [J]. BIOMASS & BIOENERGY, 2007, 31 (01) : 1 - 12
  • [6] Aylott MJ, 2010, BIOFUELS-UK, V1, P719, DOI [10.4155/bfs.10.30, 10.4155/BFS.10.30]
  • [7] Modelling supply and demand of bioenergy from short rotation coppice and Miscanthus in the UK
    Bauen, A. W.
    Dunnett, A. J.
    Richter, G. M.
    Dailey, A. G.
    Aylott, M.
    Casella, E.
    Taylor, G.
    [J]. BIORESOURCE TECHNOLOGY, 2010, 101 (21) : 8132 - 8143
  • [8] Clinch RL, 2008, THESIS U GUELPH GUEL, P163
  • [9] Bioenergy in the United States: progress and possibilities
    Cook, J
    Beyea, J
    [J]. BIOMASS & BIOENERGY, 2000, 18 (06) : 441 - 455
  • [10] Biomass production physiology and soil carbon dynamics in short-rotation-grown Populus deltoides and P. deltoides x P. nigra hybrids
    Dowell, Ryan C.
    Gibbins, Daniel
    Rhoads, Julie L.
    Pallardy, Stephen G.
    [J]. FOREST ECOLOGY AND MANAGEMENT, 2009, 257 (01) : 134 - 142