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ArticlePattern of urban forest changes in a volcano neo-tropical city
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Urban forests are a key component of nature-based adaptation strategies; therefore, their monitoring and management is fundamental to urban management in the 21st century. This research identified and estimated land cover changes in an urban space located in the neo-tropical Andean valleys. To achieve this objective, we set out to quantify over a five-year period (2013-2017) the land cover changes with emphasis on impervious cover, forest fragments, urban trees, and urban green areas. Thus, we identified the spatial variations of urban vegetation over the five-year period using SPOT 6 and 7 images, applying an object-based classification and a transition matrix. We found an increase in the impervious category and the loss of urban vegetation, represented by the sum of the categories: forest, green areas and shrub-shrub. In parallel, we observed an increase in forest and urban woodland that compensated for the losses in the categories of shrubs and green areas. Quantifying the spatio-temporal variations of urban forests more accurately and at an appropriate scale generates timely information for the design policies aimed at achieving environmental justice in the city; and also will determine the transition to sustainability cities in the 21st century. Keywords: urban forest, object-based classification, SPOT, land cover changes ID: 3488631 -
ArticleFarmers’ perceptions of herbicide usage in forest landscape restoration programs in Ghana
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Although herbicides have extensively been used in forest landscape restoration its effects and opportunity costs have rarely been studied in Ghana. This study assessed the perceptions on the effects of herbicide usage among farmers enrolled in a taungya i.e. farm forestry programs in the dry semi-deciduous ecological zone of Ghana. Data was collected from 300 taungya farmers and 50 herbicide traders and analyzed descriptively and quantitatively. Results indicate that 100% of farmers perceived herbicides as having deleterious effects on flora (seedlings, under-storey wild foods, medicines) and fauna (soil micro-organisms, fish in rivers) as well as water quality, soil structure and human health. Nevertheless, 93% of them use herbicides to reduce labour costs and to establish larger acreages. Based on their functional properties, 85% of herbicides traded are non- selective for bush clearing and 15% are selective for weeding. Farmers use them indiscriminately due to poor knowledge on recommended practices and intensity of invasiveness of weed species. Education, residential status and age of respondents significantly predicted usage. The study recommends a review of Ghana’s pesticide deployment strategies and herbicides guide book for use in farm forestry. Capacity of frontline forestry professionals, traders and farmer-based organizations must be enhanced to effectively advice and monitor safe application. Plant based herbicides must be promoted for safety and enhancement of biodiversity. Keywords: Pesticides, herbicides, herbicide pollution in forest-ecosystems, herbicides in forest vegetation management, taungya system ID: 3486132 -
ArticleAre we getting there? Community and external perceptions of collaborative timber management in three amazonian sustainable use protected areas
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.As the number of communities that have (partial) rights to manage forests has increased, so has the number of communities that engage with timber management in sustainable use protected areas. Guided by two research questions: (1) How do local communities and external organizations perceive timber co-management arrangements and logging activities in sustainable use protected areas? and (2) To what extent do these actors' perceptions vary?, I investigated actors’ perceptions of timber co-management arrangements and logging activities in three Brazilian Amazonian sustainable use protected areas. Based on participatory research methods involving both individual and group interviews, results suggest four main things: (1) strong and long-term partnerships among multiple actors can enhance positive perceptions of collaboration in co- management systems; (2) timber workers should be more involved in technical decision makings with external partner organizations; (3) Participatory budgeting can be key to equate perceptions on income generation; and (4) Conflict management can be imperative in co-management systems, still when underestimated by some of the co-management actors. Keywords: Adaptive management; Governance; Landscape management; Partnerships; Sustainable forest management ID: 3623363
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