کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4996281 | 1459796 | 2017 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Estimating the spatial distribution and locating hotspots of forest biomass from harvest residues and fire-damaged stands in Canada's managed forests
ترجمه فارسی عنوان
برآورد توزیع فضایی و تعیین نقاط توده زیست توده جنگل از بقایای برداشت و ایستگاه های آتش سوزی در جنگل های مدیریتی کانادا
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کلمات کلیدی
بیو انرژی، فهرست، اختلال طبیعی، سنجش از دور، زنجیره تامین چوب، چوب باقی مانده،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
Strategies for increasing the mobilization of forest biomass supply chains for bioenergy production require continuous assessments of the spatial and temporal availability of biomass feedstock. Using remote sensing products at a 250-m pixel resolution, estimates of theoretical biomass availability from harvest residues and fire-killed trees were computed by combining Canada-wide maps of forest attributes (2001) and of yearly (2002-2011) fires and harvests. At the national scale, biomass availability was estimated at 47 ± 18 M ODT yearâ1 from fire-killed trees and at 14 ± 2 M ODT yearâ1 from harvest residues. Mean biomass densities in burned and harvested pixels were estimated at 34 ± 3.0 ODT haâ1 and at 24 ± 1.2 ODT haâ1, respectively. Mean biomass densities also varied dramatically among ecozones, from 14 ODT haâ1 to 206 ODT haâ1 and from 6 ODT haâ1 to 63 ODT haâ1 for burned and harvested pixels, respectively. Spatial averaging with a 100-km radius window shows distinct hotspots of biomass availability across Canada. The largest hotspots from fire-killed trees reached 3.6 M ODT yearâ1 in the Boreal Shield and the Boreal Plains ecozones of northern Alberta and Saskatchewan, where fires are large and frequent. The largest hotspots from harvest residues reached 1.2 M ODT yearâ1 in the Montane Cordillera ecozone of British Columbia. The use of spatially explicit remote sensing products yields estimates of theoretical biomass availability that are methodologically consistent across Canada. Future development should include validations with on-the-ground forest inventories as well as the factoring in of environmental, technical and economic considerations to implement operational biomass supply chains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomass and Bioenergy - Volume 97, February 2017, Pages 90-99
Journal: Biomass and Bioenergy - Volume 97, February 2017, Pages 90-99
نویسندگان
Nicolas Mansuy, David Paré, Evelyne Thiffault, Pierre Y. Bernier, Guillaume Cyr, Francis Manka, Benoit Lafleur, Luc Guindon,