La problématique de l’utilisation des herbicides en foresterie: le cas du Québec

Herbicide use in forestry is analysed from an historical and environmental perspective. First chemical herbicides were developed during the Second World War. Organochloride herbicides were widely used in the past but they are now classified as very harmful for human and the environment. However, re...

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Autores principales:	J. Fortier, C. Messier, L. Coll
Formato:	article
Lenguaje:	FR
Publicado:	Éditions en environnement VertigO 2005
Materias:	alternatives chemical treatments environmental impacts forest vegetation management forestry glyphosate Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/c0ae4a9dbeeb4e318eae7e58e3bd2491
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id	oai:doaj.org-article:c0ae4a9dbeeb4e318eae7e58e3bd2491
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spelling	oai:doaj.org-article:c0ae4a9dbeeb4e318eae7e58e3bd24912021-12-02T10:02:21ZLa problématique de l’utilisation des herbicides en foresterie: le cas du Québec1492-844210.4000/vertigo.4372https://doaj.org/article/c0ae4a9dbeeb4e318eae7e58e3bd24912005-09-01T00:00:00Zhttp://journals.openedition.org/vertigo/4372https://doaj.org/toc/1492-8442Herbicide use in forestry is analysed from an historical and environmental perspective. First chemical herbicides were developed during the Second World War. Organochloride herbicides were widely used in the past but they are now classified as very harmful for human and the environment. However, recently developed herbicides like glyphosate present the same efficiency and a much lower toxicity. In general, the public opinion about herbicides is strongly negative. In Québec, all herbicides were banned from use in public forest after some environmental assessments. This decision seems to be more politically than scientifically based. In the case of intensive managed forest, mechanical treatments with forest tractors can present similar or even lower environmental impacts than glyphosate, but few studies exist to make an objective comparison. Furthermore, in terms of tree growth, low toxicity herbicides seem to present higher effectiveness than mechanical treatments. This possible growth gain can then be used to reduce pressure on natural forest by increasing protected areas and the use of ecosystem forest management. Nevertheless, the use of herbicides must be strictly monitored to reduce environmental risks.J. FortierC. MessierL. CollÉditions en environnement VertigOarticlealternativeschemical treatmentsenvironmental impactsforest vegetation managementforestryglyphosateEnvironmental sciencesGE1-350FRVertigO, Vol 6, Iss 2 (2005)
institution	DOAJ
collection	DOAJ
language	FR
topic	alternatives chemical treatments environmental impacts forest vegetation management forestry glyphosate Environmental sciences GE1-350
spellingShingle	alternatives chemical treatments environmental impacts forest vegetation management forestry glyphosate Environmental sciences GE1-350 J. Fortier C. Messier L. Coll La problématique de l’utilisation des herbicides en foresterie: le cas du Québec
description	Herbicide use in forestry is analysed from an historical and environmental perspective. First chemical herbicides were developed during the Second World War. Organochloride herbicides were widely used in the past but they are now classified as very harmful for human and the environment. However, recently developed herbicides like glyphosate present the same efficiency and a much lower toxicity. In general, the public opinion about herbicides is strongly negative. In Québec, all herbicides were banned from use in public forest after some environmental assessments. This decision seems to be more politically than scientifically based. In the case of intensive managed forest, mechanical treatments with forest tractors can present similar or even lower environmental impacts than glyphosate, but few studies exist to make an objective comparison. Furthermore, in terms of tree growth, low toxicity herbicides seem to present higher effectiveness than mechanical treatments. This possible growth gain can then be used to reduce pressure on natural forest by increasing protected areas and the use of ecosystem forest management. Nevertheless, the use of herbicides must be strictly monitored to reduce environmental risks.
format	article
author	J. Fortier C. Messier L. Coll
author_facet	J. Fortier C. Messier L. Coll
author_sort	J. Fortier
title	La problématique de l’utilisation des herbicides en foresterie: le cas du Québec
title_short	La problématique de l’utilisation des herbicides en foresterie: le cas du Québec
title_full	La problématique de l’utilisation des herbicides en foresterie: le cas du Québec
title_fullStr	La problématique de l’utilisation des herbicides en foresterie: le cas du Québec
title_full_unstemmed	La problématique de l’utilisation des herbicides en foresterie: le cas du Québec
title_sort	la problématique de l’utilisation des herbicides en foresterie: le cas du québec
publisher	Éditions en environnement VertigO
publishDate	2005
url	https://doaj.org/article/c0ae4a9dbeeb4e318eae7e58e3bd2491
work_keys_str_mv	AT jfortier laproblematiquedelutilisationdesherbicidesenforesterielecasduquebec AT cmessier laproblematiquedelutilisationdesherbicidesenforesterielecasduquebec AT lcoll laproblematiquedelutilisationdesherbicidesenforesterielecasduquebec
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La problématique de l’utilisation des herbicides en foresterie: le cas du Québec

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