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DocumentOther documentGrowth performance of the Teak's (Tectona grandis Linn.f) different planting stocks
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.The growth of plantation is dependent on a complex series of interactions between genetics and environmental factors, and the planting stocks including planting methods. For the successful establishment of a plantation, the economically effective means should be explored, as teak plantation is being established in Myanmar especially for commercial purposes including forest rehabilitation purposes. This study was conducted in the 12 years old Teak plantation that was established in compartment No. 24 of Ngalaik Reserved Forest and managed by Forest Research Institute. This plantation was established with different planting stocks; tissue culture seedling, shoot cutting seedling, potted seedling, fresh stump seedling, and grafted seedling in 2008. The main objective of this trial is to explore the growth performance of Teak plantation by applying the different planting stocks. Randomized completely block design (RCBD) was used with 5 replications (5 blocks). In one block, there are 5 plots in which totally of 49 trees were planted in each sub-plot with 2.7 m by 2.7 m spacing. There was a total of 1,225 planted trees in this trial. As a preliminary step, in 2019 through the measurement data, the total basal area of trial area (0.92 ha) is 16.46 m2 (17.89 m2 ha-1), the total volume is 96.47 m3 (104.86 m3 ha-1) [here calculated cone factor = 0.359822 is used], and mean annual increment (MAI) is 9.53 m3 ha-1 yr -1. Among the different planting stocks, the potted seedling plant was significantly better in growth as compared to those of other planting stocks, nonetheless, survival percentages among them were not significant. Now, we conduct this follow-up study to explore the growth performance of this 12 years old teak plantation of different planting stocks. We expect this study’s findings will be supported the useful and applicable information for the commercial plantation program to raising environmentally friendly and economically successful teak plantations. Keywords: Sustainable forest management, Deforestation and forest degradation, Research ID: 3485372 -
ArticleJournal articleAssessing tree succession, species diversity and carbon sequestration potentials in off-reserve secondary forests for REDD+ implementation in Ghana
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Ghana is losing its primary forest, mostly forest reserves at an alarming rate. Secondary forests play a vital role in tropical landscapes, but few studies exist to assess their regeneration pathways and carbon sequestration in Ghana. We sought to find out the regeneration potentials, species diversity and carbon stocks accumulation of off-reserve secondary forests in the Moist Semi-deciduous and Dry Semi-deciduous zones. Four age classes were studied; 0-5, 6-10, 11-15 and 15+ years. Four plots with three replications were used for each age class. Nested plots were chosen; 33 m x 33 m for trees (dbh≥ 5 cm) 10 m x 10 m for saplings (≥1m tall and dbh <5cm) and 2 m x 2 m for seedlings. Age had significant differences in tree (dbh≥ 5 cm) density and basal area between the sites but not on sapling and seedling densities. A total of 129 tree species with dbh ≥5cm belonging to 95 genera and 40 families were identified. Mean Shannon-Weiner diversity index of trees (dbh ≥ 5cm) was 3.6±0.2 and 3.3±0.3 for the Moist Semi-deciduous and Dry Semi-deciduous zones respectively. Both age and forest site had significant effect on aboveground carbon accumulation with age of forest having more significance than climatic conditions. Age of a secondary forest has more effect on the species composition than climate. The secondary forest depicts the characteristic of young growth where the tree densities of most trees are confined to dbh= 5- 10cm in both zones and the potential of rapid recovery of species and carbon accumulation represents an important source of timber and carbon sink. The strong presence of regeneration portrays the potential for carbon sequestration under Reducing Emissions from Deforestation and forest Degradation (REDD+) if secondary forests are managed well in Ghana. Collaborative management of secondary forests with farmers and good forest polices can help Ghana achieve benefits such as timber, woodfuel, and carbon to participate in REDD+. Keywords: [Deforestation and forest degradation, REDD+, secondary forest, Climate change, Landscape management]\ ID: 3617260 -
ArticleJournal articlePayment for forest ecosystem services through willingness to pay in Oba Hill Forest Reserve, Osun State, Nigeria
XV World Forestry Congress, 2-6 May 2022
2022Also available in:
No results found.Forest supplies several products and services and these services includes timber and non-timber products, as well as a number of intangible or non- market services. Forest ecosystem services are complicated because many of these services are difficult to evaluate in monetary terms. This study assessed the socio-economic characteristics of the respondents, willingness to pay (WTP) and factors that influenced the WTP for ecosystem services in Oba Hill forest reserve, Osun State. A pre-tested semi-structured questionnaire and interview guide was used to collect information from the respondents. A total number of 100 respondents were selected randomly in the adjoining forest communities. Descriptive statistics were used to describe the socio-economic characteristics of the respondents and choice experiment was used to assess Willingness-to-Pay (WTP) and factors that influenced them D-Optimal design with a D-efficiency of 99.9% was developed for the choice experiment. A practical set of 9 choice sets with two product profiles and a status quo alternative were obtained. Random Parameters Mixed Multinomial Logit (MIXL) and Generalized Multinomial Logit (G-MNL) models were used to estimate the willingness to pay (WTP) and the factors that influenced the WTP of an individual for the attributes of forest ecosystem services. Wildlife loss, soil fertility and cost attributes were significant at 0.1% significance level (p≤0.001). Mean WTP estimate of a household for increase in soil fertility, reduction of wildlife loss, multiples of important tree species were 8.60, 7.61 and 39.95 (Naira) per month respectively. Respondents were not willing to pay for the mitigation of weather fluctuation. Also, WTP of the respondents was mainly influenced by farming households. Therefore, this study concludes that the WTP for the ecosystem services in the study area was partly influenced by the socio-economic characteristics of the respondents. Keywords: Ecosystem services; forest reserves; generalized multinomial logit; mixed multinomial logit and willingness to pay ID: 3484151
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