Review of herbicide use for forest management in Alberta, 1995–2009

2012 ◽  
Vol 88 (03) ◽  
pp. 328-339 ◽  
Author(s):  
Milo Mihajlovich ◽  
Sonya Odsen ◽  
Daniel Chicoine

This report reviews herbicide use for forest management purposes in Alberta between 1995 and 2009. Data for this review are drawn from the National Forestry Database, Government of Alberta records, anecdotal review of herbicide activities from participants, and the published literature. Alberta moved toward operational use of herbicides for forest management in a carefully monitored, step-wise process, with full adoption occurring in 2001–2002. Stakeholder engagement processes and the development of operational guidelines for risk identification and mitigation are described. A metric (Herbicide Excursion Intensity) has been developed and used to assess risk identification and mitigation efficiency independent of extent of herbicide use. Review of the temporal trends in this metric demonstrates that identification and mitigation of this element of risk associated with forest herbicide use in Alberta has been generally successful following initial learning experiences. Factors contributing to Alberta’s success in risk mitigation are: use of helicopters for all aerial application of forestry herbicides, adoption of drift control (AccuFlow™) nozzles, and quantitative prediction of spray cloud behavior in the Ag-Drift and SprayAdvisor models allowing gaming of weather conditions, buffer widths and nozzles to develop integrated risk mitigation processes. The report provides several recommendations, including the development of a Vegetation Management Strategy, to more explicitly link forest herbicide use with forest management planning.

2008 ◽  
Vol 42 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Emin Zeki Baskent ◽  
Salih Terzioğlu ◽  
Şağdan Başkaya

FLORESTA ◽  
2014 ◽  
Vol 45 (2) ◽  
pp. 433
Author(s):  
José Das Dores De Sá Rocha ◽  
José Arimatéa Silva ◽  
Vitor Afonso Hoeflich ◽  
Francisco Carneiro Barreto Campello

As instituições dos estados do Nordeste que assumiram a gestão florestal foram diagnosticadas pelo Ministério do Meio Ambiente em 2009. Decorrente deste estudo regional, o presente trabalho tem como objetivos: i) Caracterizar os instrumentos de política e de gestão florestal no estado do Maranhão; ii) Analisar o atual modelo de gestão florestal estadual. Os dados foram obtidos de fontes secundárias na rede mundial de computadores e através da aplicação de questionários em dois Seminários realizados no próprio estado. Os instrumentos de política e gestão florestal foram classificados segundo suas características legais, econômicas e administrativas afetas ao tema. O modelo de gestão florestal foi analisado com base no modelo de excelência em gestão pública, adaptado para o estudo. As principais conclusões foram: há conflitos legais de competências da gestão florestal no estado, entre a SEMA e a SEAGRO; a SEMA é responsável pela política e pela gestão florestal maranhense; uma Superintendência de Gestão Florestal, ainda não institucionalizada, estava, na prática operando a gestão florestal; planejamento, execução e controle da gestão florestal foram avaliados, de modo geral, em situação insatisfatória, tanto pelo público interno da SEMA quanto pelos seus usuários.Palavras-chave: Modelo de gestão florestal; descentralização; Nordeste do Brasil. AbstractForest management in the State of Maranhão, beyond decentralization. The institutions in the Northeastern states that assumed forest management were diagnosed by the Ministry of Environment in 2009. Due to this regional study, this paper aims to: i) characterize the fundamentals of policy and forest management in the state of Maranhão, ii) analyze the current model of state forest management. Data were obtained from secondary sources on the World Wide Web and through questionnaires in two seminars held within the state. The fundamentals of policy and forest management were characterized on the basis of legal instruments, administrative and economic sympathetic to the issue. The forest management model was analyzed based on the model of excellence in public management, adapted for the study. The main conclusions were: conflicts of legal jurisdiction in the state of forest management, and between SEAGRO and SEMA.SEMA is responsible for forest management policy and Maranhão, a Superintendent of Forest Management, not yet institutionalized, was in practice the operating forest management, planning, execution and control of forest management were evaluated, in general, an unsatisfactory situation, both the public and internal SEMA by its users.Keywords: Forest Management model; decentralization; Northeast of Brazil.


2009 ◽  
Vol 128 (3) ◽  
pp. 305-317 ◽  
Author(s):  
M. Maltamo ◽  
P. Packalén ◽  
A. Suvanto ◽  
K. T. Korhonen ◽  
L. Mehtätalo ◽  
...  

2011 ◽  
Vol 87 (02) ◽  
pp. 290-309 ◽  
Author(s):  
Jennifer Dacosta ◽  
Kandyd Szuba ◽  
F. Wayne Bell ◽  
Tom Moore ◽  
Ken Lennon ◽  
...  

In Ontario, forest management planning requires that legal obligations to sustain forest composition and pattern, wildlife habitat, and other values are met, while at the same time addressing, for example, wood supply needs, costs, forest access, and stakeholder concerns. One of the latter is pressure to reduce herbicide use. Stand-level effects of vegetation management alternatives have been documented, but how these effects scale up to the landscape-level and affect the achievement of social, ecological, and economic objectives embedded in forest management plans (FMPs) remains uncertain. We applied nine modelling scenarios in the context of approved FMPs to explore the potential landscape-level effects of replacing herbicide use with an alternative (brush saw) for two large forests in northeastern Ontario. Results of non-spatial and spatial modelling over 60 years suggested that although herbicides are applied to only 25% to 34% of the harvested area in these forests, reductions in use would affect: (i) overall wood supply, with 14% to 44% less conifer and 6% to 17% less hardwood available; (ii) habitat supply, with less habitat for species preferring recent disturbances and more habitat for species preferring mature and older forest; (iii) costs, with wood transportation cost increasing by 16% to 20% and increased spending on silviculture; (iv) size and distribution of cutblocks and disturbance patches, with more small patches; and (v) the extent of the active road network, which would increase.


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