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ArticleCurrent situation and solutions for community forest management in the Central Highlands of Viet Nam
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Community forest management has been officially recognized more clearly in Viet Nam's new Forest Law of 2017, so to promote community forest management, it is necessary to assess the past process and put it into new context to provide appropriate technical and policy recommendations. The fields of community forest management assessment were in Tul and Hang Nam villages, where M'Nong indigenous ethnic minorities live, in the Central Highlands, Viet Nam. Natural forests were allocated to these communities since 2002. Accordingly, Tul community had the support of a rural development project in the period of 2005-2009 to improve its capacity for management of community forests, while the Hang Nam community did not have any significant support from outside. Participatory research methods were applied to evaluate the results and effectiveness of community forest management. The results showed that: 1) The community forest model that was granted forest use rights without any support and advice to implement community forest management (In the case of Hang Nam community), achieved the rates according to the following: organizing 13%, technical 23%, economic 33%, social: 34% and environmental: 71% and on average 35% of all objectives were met; 2) The community forest model that was granted the forest use rights and received the supports for capacity building through a 4-year project (In the case of Tul community), achieved the rates according to the following: organizing 33%; technical 36%, economic 20%, social: 77% and environmental: 77% and on average 50% of all objectives were met. In order to consolidate and develop community forest management, it is necessary to synchronously implement the following solutions: 1) Strengthen the organization and management capacity for the communities; 2) Improve community livelihoods from forest management; 3) There is a need of more appropriate policies for community forest management; 4) Apply measures to rehabilitate degraded forests. Keywords: community forestry, evaluation of forest management, solutions for community forestry ID: 3472958 -
ArticleDeveloping simultaneously modeling systems for improving the reliability of tree aboveground biomass- carbon and its components estimates for Machilus odoratissimus nees in the central highlands, Viet Nam
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Machilus odoratissimus Nees is a multi-purpose species with, high economic value and environmental protection, so this tree species is commonly used in agroforestry models. In plantation management, it demands modeling systems that predict accurately aboveground biomass- carbon and its components. At the same time, the developed models support computing carbon accumulation of forest trees in agroforestry models for the program of reducing emissions from deforestation and forest degradation (REDD). Twenty-two 300 m2 plots were measured within the full range of 1 to 7 ages in the Central Highlands of VietNam. A total of 22 quadratic mean diameter trees were destructively sampled to obtain a dataset of the dry iomass/carbon of the stem (Bst/Cst), bark (Bba/Cba), branches (Bbr/Cbr), leaves (Ble/Cle), and total tree aboveground biomass/carbon (AGB/AGC). We examined the performance of weighted nonlinear models fit by maximum likelihood and weighted nonlinear seemingly unrelated regression (SUR) fit by generalized least squares for predicting tree aboveground biomass- carbon and its components. The simultaneous estimation of AGB/AGC and its components produced a higher reliability than that of the models of tree components and the total developed separately. The selected forms of modeling systems were AGB = Bst + Bba + Bbr + Ble = a1×(D2H)b1 + a2×(D2H)b2 + a3×Db3 + a4×(D2H)b4 and AGC = Cst + Cba+ Cbr + Cle = a1×(D2H)b1 ++2×(D2H)b2 + a3×Db3 + a4×(D2H)b4 (where D is the diameter at breast height and H is the height of the tree). Keywords: Agroforestry, Machilus odoratissimus, seemingly unrelated regression (SUR), tree biomass- carbon ID: 3472953 -
ArticleChange of bird communities at the larch plantation forests and deciduous forests in Jungwangsan, Korea
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.To coping with international convention and treaty relating with biological diversity, and to enhance the public awareness on the effect of forest practice on biodiversity and sustainable forest management in Korea, we evaluated the thinning effect on bird communities at Larch plantation forests (LF, 25.0% thinning at 9ha in size, a.s.l. 1,200m) and deciduous forests (DF, 55.3% thinning at 15.8ha in size, a.s.l. 600m) after two years from 2013 to 2015. Bird communities were surveyed by the combination of point counts (9 points) and line transect methods during breeding and non-breeding seasons with the sounds and observation by binocular and camera. We analyzed the composition of bird communities with nesting and foraging guild. After thinning practice in early spring of 2013, total 15 and 21 birds were recorded in 2013, forty and thirty-one species of birds in 2014, and sixty and forty species of birds in 2015 at the DF and LF, respectively. Data showed that one year took to recover the number of species after thinning at DF sites, and bush-nesting birds such as Winter Wren and Hazel Grouse were increased after thinning at LF sites. At a large forests area in Mt.Jungwangsan, forest practice like a 25.0% thinning at LF and 55.3% thinning at DF sites could not affect the bird community and increase the habitat diversity to attract the forests birds prefer bush and open space in forests areas. These results imply that spatial and temporal arrangement in a landscape approach could be fully considered to maintain and enhance biodiversity in forests. Keywords: Bush-nesters, habitat heterogeneity, Shrub layer, Thinning ID: 3622621
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