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ArticleParticipatory forest conservation, restoration, and sanitation in a resilient and resistant social-ecological system in Mexico
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The world continues the search for effective mechanisms to protect the natural heritage of forested landscapes. Mexico is among the most important forested and mega-biodiverse countries, with some 60% (62.6 million ha) of forests owned by communities, which operate as common property forest social-ecological systems (SES). Mexican forests are under varying natural and anthropic threats, but community collective action around forest management is the most important response for facing them. Here, we document experiences of participatory-adaptive forest management for conservation, restoration and sanitation in community forests. Combined methods were used, included: document review, participatory mapping, forest cover analysis, community workshops, key actor interviews and participant observation. Participatory forest management strategies by varying communities commonly used community resources, labor, cultural values, local traditional knowledge and governance institutions, both with and without sustained government support. The hundreds of voluntary conservation areas demonstrate that nature and people can coexist. As well, thousands of participatory forest restorations are based on cultural motivations and concerns for environmental legacies. Also, despite the growing bark beetle threat in temperate forests, large- scale participatory sanitation logging illustrates the opportunities to maintain forest health at the community level. A better understanding of approaches that improve resistance and adaptive capacity in forest SES, may help to design public policies for government and non-governmental interventions oriented to support and strengthen grassroots initiatives in Mexico and beyond. Lessons from bottom-up collective action examples can help to build a more sustainable future in comparable inhabited forests. Keywords: Adaptive and integrated management, habitat conservation, forest transition, climate change, local governance. ID: 3487226 -
DocumentManaging taxonomic and functional diversity is the key to sustain aboveground biomass and soil microbial diversity: A synthesis from long-term forest restoration of southern China
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Exploring the biodiversity-ecosystem functioning relationship is one of the central goals of ecological research. Restoration is essential for supporting key ecosystem functions such as aboveground biomass production and managing soil microbial diversity. However, the relative importance of functional versus taxonomic diversity in explaining aboveground biomass and soil microbial diversity during restoration is poorly understood. Here, we used a trait-based approach to test for the importance of multiple plant diversity attributes in regulating aboveground biomass and soil microbial diversity in four 30- years-old restored subtropical forests in southern China. High-throughput Illumina sequencing was applied for detecting fungal and bacterial diversity. We show that both taxonomic and functional diversities are significant and positive regulators of aboveground biomass; however, functional diversity (FD) was more important than taxonomic diversity (TD) in controlling aboveground biomass. FD had the strongest direct effect on aboveground biomass compared with TD, soil properties, and community weighted mean (CWM) traits. Our results further indicate that leaf and root morphological traits and traits related to the nutrient content in plant tissues showed acquisitive resource use strategy which influenced aboveground biomass. In contrast to aboveground biomass, taxonomic diversity explained more of the soil microbial diversity than the FD and soil properties. Prediction of fungal richness was better than that of bacterial richness. In addition, root traits explained more variation of soil microbes than the leaf traits. Our results suggest that both TD and FD play a role in shaping aboveground biomass and soil microbial diversity; but FD is more important in supporting aboveground biomass while TD for belowground microbial diversity. These results imply that enhancing TD and FD is important to restoring and managing degraded forest landscapes. Key words: Biodiversity-Ecosystem functions; soil microbial diversity, taxonomic diversity, functional diversity, forest restoration ID: 3486373 -
DocumentVariability in the early growth of Parkia timoriana (DC.) Merr. from Mount Makiling Forest Reserve, Luzon, Philippines and its applications in conservation and forest restoration
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.This study evaluated the early growth performance of selected mother trees of Parkia timoriana (Fabaceae) and characterized the suitable environmental (soil and light) factors for the growth of the species. P. timoriana seedlings from different mother trees from the Mount Makiling Forest Reserve (MMFR), Luzon, Philippines were grown in two soil media under greenhouse condition and field trial planted in the University of the Philippines Laguna-Quezon Land Grant (LQLG), where P. timoriana is not occurring naturally and soil and climate differ significantly with the MMFR. Early growth performances in height and ground basal diameter (GBD) or root collar diameter (RCD) both in the greenhouse and field trial plot were measured. Nursery-based performance showed that the average RCD was generally higher in MMFR than LQLG soil but the overall difference was not statistically significant. In contrast, overall average height was consistently higher in LQLG than in MMFR soil, but similar to RCD the difference was not statistically significant. Under different light conditions in the field trial, there was significant difference in mortality, tree height, and GBD. The differences in both the height and GBD may be attributed to the genotype of the mother trees, but height can additionally be attributed to the interaction of the genotype and the different light conditions. Results suggest that P. timoriana can be grown in areas of different soil condition, but it requires partial shade in order to achieve its full growth potential during the early stage of its growth. Hence, P. timoriana when used in reforestation or tree planting projects must consider differences in the early growth response of seedlings according to its genotype as well as light conditions. However, it is highly suggested that growth performances among provenances of P. timoriana and other environmental variables that may affect growth of the species should be looked into. Keywords: Biodiversity conservation, Genetic resources, Sustainable forest management, Deforestation and forest degradation, Monitoring and data collection ID: 3486623
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