Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ?
Over the past decade, there has been an increasing interest in the development of forest management approaches that are based on an understanding of historical natural disturbance dynamics. The rationale for such an approach is that management to favour landscape compositions and stand structures si...
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| Format: | Article |
| Language: | fra |
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Éditions en environnement VertigO
2019-06-01
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| Series: | VertigO |
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| Online Access: | https://journals.openedition.org/vertigo/4197 |
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| _version_ | 1841552943097053184 |
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| author | Yves Bergeron Héloïse Le Goff |
| author_facet | Yves Bergeron Héloïse Le Goff |
| author_sort | Yves Bergeron |
| collection | DOAJ |
| description | Over the past decade, there has been an increasing interest in the development of forest management approaches that are based on an understanding of historical natural disturbance dynamics. The rationale for such an approach is that management to favour landscape compositions and stand structures similar to those of natural ecosystems should also maintain biological diversity and essential ecological functions. In fire-dominated landscapes, this approach is possible only if current and future fire frequencies are sufficiently low, in comparison to pre-industrial fire frequency, that we can substitute fire with forest management. This question is addressed here by comparing current and future fire frequency to historical reconstruction of fire frequency from studies in the Canadian boreal forest. Current and simulated future fire frequencies using 2x and 3xCO2 scenarios are lower than the historical fire frequency for most sites, suggesting that forest management could potentially be used to recreate the forest age structure of fire-controlled pre-industrial landscapes. Current even-aged management, however tends to reduce forest variability: for example, fully regulated, even-aged management will tend to truncate the natural forest stand age distribution and eliminate overmature and old growth forests from the landscape. The development of silvicultural techniques that maintain a spectrum of forest compositions and structures at different scales in the landscape is one avenue to maintain this variability. |
| format | Article |
| id | doaj-art-30089b22f936475da4c269bb5b822718 |
| institution | Kabale University |
| issn | 1492-8442 |
| language | fra |
| publishDate | 2019-06-01 |
| publisher | Éditions en environnement VertigO |
| record_format | Article |
| series | VertigO |
| spelling | doaj-art-30089b22f936475da4c269bb5b8227182025-01-09T12:38:50ZfraÉditions en environnement VertigOVertigO1492-84422019-06-016210.4000/vertigo.4197Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ?Yves BergeronHéloïse Le GoffOver the past decade, there has been an increasing interest in the development of forest management approaches that are based on an understanding of historical natural disturbance dynamics. The rationale for such an approach is that management to favour landscape compositions and stand structures similar to those of natural ecosystems should also maintain biological diversity and essential ecological functions. In fire-dominated landscapes, this approach is possible only if current and future fire frequencies are sufficiently low, in comparison to pre-industrial fire frequency, that we can substitute fire with forest management. This question is addressed here by comparing current and future fire frequency to historical reconstruction of fire frequency from studies in the Canadian boreal forest. Current and simulated future fire frequencies using 2x and 3xCO2 scenarios are lower than the historical fire frequency for most sites, suggesting that forest management could potentially be used to recreate the forest age structure of fire-controlled pre-industrial landscapes. Current even-aged management, however tends to reduce forest variability: for example, fully regulated, even-aged management will tend to truncate the natural forest stand age distribution and eliminate overmature and old growth forests from the landscape. The development of silvicultural techniques that maintain a spectrum of forest compositions and structures at different scales in the landscape is one avenue to maintain this variability.https://journals.openedition.org/vertigo/4197climate changeboreal foresteven age managementfire regimeold-growth forestspartial cutting |
| spellingShingle | Yves Bergeron Héloïse Le Goff Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ? VertigO climate change boreal forest even age management fire regime old-growth forests partial cutting |
| title | Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ? |
| title_full | Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ? |
| title_fullStr | Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ? |
| title_full_unstemmed | Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ? |
| title_short | Doit-on remettre en question notre façon d'aménager la forêt boréale canadienne ? |
| title_sort | doit on remettre en question notre facon d amenager la foret boreale canadienne |
| topic | climate change boreal forest even age management fire regime old-growth forests partial cutting |
| url | https://journals.openedition.org/vertigo/4197 |
| work_keys_str_mv | AT yvesbergeron doitonremettreenquestionnotrefacondamenagerlaforetborealecanadienne AT heloiselegoff doitonremettreenquestionnotrefacondamenagerlaforetborealecanadienne |