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Invasive alien plants, insect pests and pathogens in Planted and Natural forests in Nepal: Key lessons from an online survey on distribution and impacts

XV World Forestry Congress, 2-6 May 2022










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    Smell the disease - Developing rapid, high-throughput and non-destructive screening methods for early detection of alien invasive forest pathogens and pests featuring next-generation technologies
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Global forests are increasingly threatened by alien invasive pathogens and pests. The magnitude of this threat is expected to further increase in the future, due to the warmer climate and more extensive global transports and trade of plants. Pests and pathogens are often introduced to new areas by trade with ornamental plants as intermediate hosts, and there is a great need to modernize the tools for detection of alien species in imported plants and in monitoring of those that are already established in our forests. To achieve this goal, research in forest pathology is focused on combining recent technological advances in robotics, next generation sequencing, and mass spectroscopic methods with knowledge about the specific metabolic responses in the pests and pathogens and the trees that they infest. Gas Chromatography (GC) Analysis of Volatile Organic Compounds (VOCs) adsorbed on Solid Phase Micro-Extraction (SPME) fibers is one promising method with potential for high-throughput detection of larger plant shipments. By the establishment of a library of chemical fingerprints characterizing specific pests and pathogens, one could non-destructively scan a large number of plants in ports or nurseries to eliminate presence of disease. The species-specific combination of VOCs can be utilized to prevent introduction of harmful pests and pathogens to new markets. One pathogen considered as a quarantine species and a serious threat on-the-horizon for coniferous forests is Pine Pitch Canker (PPC), a fungal pathogen affecting a variety of pine species with devastating economical and biological consequences, especially if it were to be established in a country like Sweden where about 38% of the standing forest volume consist of pine. Pathogens like this one are already introduced in several European countries, and need to be monitored and identified early to prevent further forest damage – a challenge that Forest pathologists have accepted. Keywords: Climate change, Sustainable forest management, Research, Monitoring and data collection, Deforestation and forest degradation ID: 3499048
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    Spatial distributions pattern and associations of dead woods in natural spruce-fir secondary forests
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Natural secondary forest is the main part of forest resources in China. Studying dead woods (DW) could better reveal the community succession rule and promote the healthy development of them. We investigated basic characteristics and coordinates of each tree (DBH≥1 cm) within a plot (100 m×100 m) using the adjacent grid method and studied the spatial distributions pattern and associations of DW (in the last five years) in a typical natural spruce-fir secondary forest in Jingouling Forest Farm, Wangqing Forestry Bureau, Jilin Province, China. The results showed that the diameter class distribution of DW showed the pattern of left-single-peak curve, while the logs showed the pattern of multi-peak curve. DW number was related to the mixing degree of one species, but not to the total number of it. The distribution of DW was concentrated at 0~8m scale. As the scale increases, it changed to random or uniform. The aggregation distribution of DW of medium (10 cm≤DBH<20 cm) and small (1 cm≤DBH<10 cm) DBH at small scale below 8 m was the main reason for the aggregation distribution of DW. The DW of large (DBH≧20 cm) DBH and Saplings (1 cm≤DBH<5 cm) showed a significant positive association at 2~25 m scale. There was no significant spatial association between DW and Small trees(5 cm≤DBH<15 cm). At 0~3m scale, there was a positive association between Medium trees (15 cm≤DBH<25 cm) and DW of small and medium DBH. At the 9 m, 11~14 m scale and the 15 m, 42~45 m scale, the DW of small and medium DBH were significantly negatively associated with Large trees (DBH≥25 cm). In conclusion, the biological traits, diameter class distribution and spatial distribution affected the abundance and diameter class distribution of DW of one species. The spatial distributions of DW and the associations between DW and standing trees varied across diameter classes and scales. Rational utilization of spatial information could optimize stand structure and promote positive community succession. Keywords: Deforestation and forest degradation, Sustainable forest management, Adaptive and integrated management ID: 3618474
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    Journal article
    Impact of capacity building in leveraging community skills and livelihoods: lessons learned from social forestry in Indonesia
    XV World Forestry Congress, 2-6 May 2022
    2022
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    Indonesia encounters several challenges in forest management due to the high communities’ demand for forest resources, including the need for agricultural land within state-owned forest areas. Community Based Forest Management (CBFM) is a strategy that emphasizes on the importance of community’s involvement in forest conservation. CBFM planning has an important role in the implementation of effective and sustainable forest management through a participatory approach involving all parties in Planning, Organizing, Actuating, and Controlling. This paper aims to provide information on impact of capacity building in leveraging community skill and livehood in three schemes of Social Forestry (SF) in Indonesia, namely Paru Village Forest (VF)–West Sumatra, Cempaka Forestry Partnership (FP)–Lampung, and Tuar Tana Community Forestry (CF)–East Nusa Tenggara, in collaboration between Forestry and Environment Research, Development and Innovation Agency with the Asian Forest Cooperation Organization (AFoCO). The research was conducted through structured interviews, FGDs and field observations by an analysis unit while the informations obtained were analyzed through descriptively qualitative and quantitative methods. The results showed that the provided assistances and capacity building in three SF schemes have increased the active participation of group members in the preparation of technical plans and implementation of economic value species planting and processing of non-timber forest products (NTFPs).Other benefits are the reduced land boundary conflicts, an increase in the frequency of routine group meetings, an increase in the number of members who are able to process NTFPs into semi-finished or finished goods. This condition shows that the provided assistance is able to increase the capacity of farmers so as to change the perceptions and attitudes of group members and encourage them to actively participate in forest management in three SF area. Keywords: Participatory planning, Capacity building, Community Forestry, Village Forest, Forestry Partnership ID: 3487019

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