Asian Journal of Forestry最新文献

{"title":"Contribution of non-timber forest products to livelihood of rural communities in Kumbungu District of Northern Ghana","authors":"A. Abukari, Mumuni Mariam","doi":"10.13057/ASIANJFOR/R040103","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R040103","url":null,"abstract":"Abstract. Ammal A, Mariam M. 2020. Contribution of non-timber forest products to livelihood of rural communities in Kumbungu District of Northern Ghana. Asian J For 4: 10-14. This survey concentrated on the contribution of Non-Timber Forest Products (NTFPs) to the livelihood of rural communities in the Kumbungu District of Ghana. Data were collected by structured questionnaires and verbal interviews to obtain information from sampled members of the communities' in the Kumbungu District of Northern Ghana. Personal interviews and direct observation were carried out. 200 structured questionnaires were administered randomly to respondents in 5 selected communities in Kumbungu District. The selected communities were Cheyohi, Kpalchi, Kokpeng, Zuolanyili, and Garizew. 40 questionnaires were administered in each community and this was used to prompt information on the uses of NTFPs in the study area. Data were analyzed using descriptive statistics (tables, charts, and graphs). The findings indicate that NTFPs are abundant in the study area and are found in all the forest land areas within the communities. NTFPs collection for utilization is usually carried out throughout the year. All the respondents in the five communities collect and use the NTFPs for preparation of food for the family and other purposes. The number of respondents involved in the collection of NTFPs was highest in Kokpeng community (21.3%), while only (18.5%) respondents were involved in the Garizew community. The chi-square test revealed that there were highly significant differences (P>0.05) between the number of respondents involved in the collection and non-collection of NTFPs in the district. The lowest income ranged between 1-25 (GHC) Ghana cedis week-1 whilst the highest income was 65+ Ghana cedis was generated by respondents in the district. 12.5% respondents in Zuolanyili had income ranging between 1-25 Ghana cedis week-1 and 10% of respondents' income ranged above 65+. 47.5% and 30% of respondents’ income ranged between 25-45 and 45-65 Ghana cedis respectively in the Zuolanyili community. Respondents in the Kokpeng community had the highest income of 30% above 65+ whilst Garizew had the lowest income 5% above 65+.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130361147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Steaming-caused chemical changes of sugi (Cryptomeria japonica) wood monitored by NIR spectroscopy","authors":"Siti Hanifah Mahdiyanti, S. Tsuchikawa, K. Mitsui, L. Tolvaj","doi":"10.13057/ASIANJFOR/R040102","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R040102","url":null,"abstract":"Abstract. Mahdiyanti SH, Tsuchikawa S, Mitsui K, Tolvaj L. 2020. Steaming-caused chemical changes of sugi (Cryptomeria japonica) wood monitored by NIR spectroscopy. Asian J For 4: 7-10. Sugi (Cryptomeria japonica D. Don) wood samples were steamed, applying a broad range of steaming time (0-20 days) at 90 and 110°C steaming temperatures. NIR spectroscopy was used to monitor the chemical changes caused by steaming. The difference spectrum method was applied to find the absorption increases and decreases. Before the subtraction, the spectra were normalized to one unit at 1739 nm to eliminate the parallel shift of the spectra. Steam-induced chemical changes in the wavelength range of 1300-2100 nm are related to the absorption of water and the absorption of extractives, especially phenolic contents. These chemical changes are suspected to be strongly related to color changes in steamed wood. Longer duration of steaming caused phenolic compounds to change into similar contents in all wood tissues, which cause their color to change more uniformly. Steaming caused a water bounding capacity loss of the cell wall. This change was much faster at 110°C than at 90°C.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121124345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review: Floral resources diversity of honeybees in important types of vegetation of Ethiopia","authors":"A. Addi, Tura Bareke","doi":"10.13057/ASIANJFOR/R00300203","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R00300203","url":null,"abstract":"Abstract. Addi A, Bareke T. 2019. Review: Floral resources diversity of honeybees in important types of vegetation of Ethiopia. Asian J For 3: 64-68. The high biodiversity of Ethiopia is attributed to its wide ranges of altitude and great geo-morphological diversity. This has resulted in the existence of the region has diverse floral resources of which majority of them are honeybee flora. In this paper bee resources identification and reviewing bee forages were made to determine types of bee plants, floral diversity, flowering period and food source offered by the plants. Moreover, pollen analysis of honey from different regions of Ethiopia was analyzed for determination of major and minor honey source plants. Accordingly, over 1500 species of indigenous and exotic of plants belongs to 105 bee plant families were identified. The growth form analysis of bee forage comprising 41.6% herb, 28.7% shrubs, 21.7% trees, and 8% climbers. The majority of bee plant species flowered from September to November and April to May resulting in two major honey flow periods in the country. Melissopalynological analysis of the honey samples indicated that Schefflera abyssinica, Croton macrostachyus, Syzygium guineense, Vernonia amygdalina and Coffea arabica contributed for 80%, 64%, 86%, 77% and 75% of the total pollen count respectively from southwest and southeastern part of the country while Becium grandiflorum, Hypoestes forskaolii, Leucas abyssinica and Acacia spp. an accounting for 71%, 75.1%, 62%, and 70.5%, respectively from northern Ethiopia. On the other hand, Eucalyptus globulus and Guizotia scabra honey were from central Ethiopia, contributing to 94% of the pollen frequency. From this information, Ethiopia has rich bee forage diversity different vegetation types however, further collection and documentation of bee flora are required in unaddressed areas of the country. Thus in situ conservation, by ecological restoration, and raising and planting of seedlings of bee forages should be promoted for sustainable honey production.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114710683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review: Floral resources diversity and vegetation types important for honeybees in Ethiopia","authors":"A. Addi, Tura Bareke","doi":"10.13057/asianjfor/r030203","DOIUrl":"https://doi.org/10.13057/asianjfor/r030203","url":null,"abstract":"Abstract. Addi A, Bareke T. 2019. Review: Floral resources diversity and vegetation types important for honeybees in Ethiopia. Asian J For 3: 64-68. The high biodiversity of Ethiopia is attributed to its wide range of altitude and great geo-morphological diversity. This has resulted in the existence of a high diversity of floral resources of which majority of them are visited by honeybees. This paper aimed to review existing studies on bee floral resources in Ethiopia to understand the types of bee plants, floral diversity, flowering period and food source offered by the plants. Over 1500 species of indigenous and exotic plants belonging to 105 bee plant families have been identified. The growth form of bee forage comprises 41.6% herb, 28.7% shrubs, 21.7% trees, and 8% climbers. The majority of bee plant species flower from September to November and April to May, resulting in two major honey flow periods in the country. From this information, Ethiopia has rich bee forage diversity across different vegetation types, however, further collection and documentation of bee flora are required in unaddressed areas of the country. Thus in situ conservation by ecological restoration, and raising and planting of seedlings of bee forages should be promoted for sustainable honey production.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122177530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review: Church forests—the green spots of Ethiopian highlands","authors":"Amare Bitewmekonen, Berhane Gebreslassie, W. A. Wassie, Berhanu Abraha Tsegay","doi":"10.13057/ASIANJFOR/R00300201","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R00300201","url":null,"abstract":"Abstract. Mekonen AB, Gebreegziabher BG, Wassie WA, Tsegay BA. 2019. Review: Church forests—the green spots of Ethiopian highlands. Asian J For 3: 45-53. In the central and northern highlands of Ethiopia, the diversity and biomass of native vegetation are almost restricted to church forests which are the only remnant natural forest in the region. The church forests are sacred because the church is believed to be the house of God and everything in its compound is sacred and respected. However, they are under severe threats by both anthropogenic and a few natural disturbances. This review paper summarizes the role of Ethiopian church forests in the boundaries of Ethiopian Orthodox Tewahido Churches (EOTC), in biodiversity conservation, source of seed and seedling of native vegetation, ecological importance, ecosystem values and services to the community and to the globe in general. It also emphasizes the main challenges of these forests i.e., humans disturbance and natural disturbances. It states the conservation strategies of church forest. We conclude that the EOTCs besides its religious activities played a great role in conserving the forests. However, most church forests have no clear and documented demarcations which enhances disturbance. The churches are also cultivating fast-growing exotic species replacing native trees for their income. Finally, we recommend that the head priests should evoke and customize the conservation of sacred groves using religious thought. The government should acknowledge the church for conservation and decide to have a clear boundary for the church forest to minimize further encroachment. Forest genetic resources conservation program (in situ type), Participatory Forest Management (PFM), and rehabilitation activities have to be implemented in addition to the church conservation effort using religious thoughts, religious sanctions, and legal protection for the integrity of these remnant sacred groves. Further studies are recommended to fill the gap of sacred groves in addressing the cause of disturbance and to provide possible solutions for better conservation.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131695897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tree species preference and rehabilitation perspective by local community: Case study in Bondowoso, East Java, Indonesia","authors":"S. A. Danarto, S. Budiharta, Fauziah","doi":"10.13057/ASIANJFOR/R00300202","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R00300202","url":null,"abstract":"Abstract. Danarto SA, Budiharta S, Fauziah. 2019. Tree species preference and rehabilitation perspective by local community: Case study in Bondowoso, East Java, Indonesia. Asian J For 3: 54-63. Study of community’s preference on tree species used for rehabilitation programs was conducted in Gubrih sub-watershed, Sampean watershed in Bondowoso District, East Java. The aim of the study was to find out tree species that have ecological values as well as are preferred by local community for rehabilitation program in the region. Questionnaires were distributed to respondents chosen randomly (i.e. to minimize bias) to select tree species which have ecological and/or economic values. Result of the study showed that among 62 species of trees listed in the questionnaire, there were 45 species chosen by the respondents. There were 13 species of trees selected by more than 20% of total of respondent (high preferred), suggesting the potential list of species for rehabilitation programs in the region. Local community in Gubrih Sub-watershed have understood the importance of trees as a source of income as well as a measure to conserve environmental functions. This is strengthened with land-use systems they selected which prefer tree-based land-use system, such as in the form of plantation of timber species and agroforestry over dry land agriculture. The findings of this study suggest that there is opportunity in rehabilitating degraded lands in Sampean watershed using tree species preferred by local community under the land use system of timber plantation or agroforestry. Our study demonstrates that similar strategy of incorporating ecological and socio-economic perspectives could be applied to another regional context to enhance the chance of success of rehabilitation programs.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"32 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116593851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Restoration and rehabilitation potential of the remnant natural forests of Himchari National Park (HNP) in Cox’s Bazar, Bangladesh","authors":"S. Hossen, M. K. Hossain, M. F. Uddin","doi":"10.13057/ASIANJFOR/R030104","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R030104","url":null,"abstract":"Abstract. Hossen S, Hossain MK, Uddin MF. 2019. Restoration and rehabilitation potential of the remnant natural forests of Himchari National Park (HNP) in Cox’s Bazar, Bangladesh. Asian J For 3 : 25-30. The present study was conducted by taking 51 stratified random sample quadrats (20 m x 20 m), where, naturally occupied vegetation (dbh ≥ 5cm) was found in maximum (16 plot, 31%) number of plots. The highest number of regenerated seedlings was accounted for Grewia nervosa 12.37 % followed by Acacia auriculiformis 8.95%. For regeneration study, 5 m × 5 m subplots were taken at the centre of each of the 51 sample quadrats and thus a total of 51 regeneration subplots were studied. The maximum Importance Value Index (IVI) of regenerated seedlings was found for Grewia nervosa (26.43) followed by Acacia auriculiformis (20.27). Different biological diversity indices such as species diversity index, Shanon-Wiener’s diversity index, Shanon’s maximum diversity index, species evenness index, Margalef’s diversity index and Simpson’s diversity index were 0.054, 3.166, 3.714, 0.853, 6.03 and 0.057 respectively. Maximum natural regeneration was observed in the sample plots of Natural and plantation forest type rather than remnant natural forests or patches. Based on result, the following research outputs are also recommended: (i). Evaluation of forest harvesting impacts on the forest ecosystems, (ii). Development of rehabilitation methods on logged-over forests and degraded forest lands, (iii). Development of silvicultural techniques on plantation and degraded lands, (iv). Network on the restoration and rehabilitation of degraded forest ecosystems.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133903365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Color modification and homogenization of sugi wood by steaming","authors":"L. Tolvaj, Endre Antal Banadics, S. Tsuchikawa, K. Mitsui, E. Preklet","doi":"10.13057/ASIANJFOR/R030103","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R030103","url":null,"abstract":"Abstract. Tolvaj L, Banadics EA, Tsuchikawa S, Mitsui K, Preklet E. 2019. Color modification and homogenization of sugi wood by steaming. Asian J For 3: 20-24. Sugi (Cryptomeria japonica D. Don) wood samples were steamed applying broad range of steaming time (0-20 days) at 90 and 110°C steaming temperatures. The color change was monitored objectively using the CIE Lab color system. A wide range of colors was created by steaming between the initial color and light brown color depending on the steaming time and temperature. The initial color of earlywood and latewood within sapwood and heartwood covered a wide range of hue. The initial redness and yellowness values ranged from 4.3 to 17.3 and 21.4 to 31.6 units, respectively. Steaming produced excellent color homogenization and increased saturation. After 9 days of steaming at 110°C, redness values converged, falling between 11.6 and 12.7 units. The yellowness values increased and also converged. After 9 days of steaming at 110°C the yellowness values were between 31.6 and 33.5 units. The color saturation of the examined tissues increased considerably and was also showed homogenized. After 9 days of steaming at 110°C, the saturation values were between 34.1 and 35.6 units (the initial values were between 22.6 and 32.1). It was difficult to differentiate the sapwood and heartwood at the end of the steaming process at 110°C.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127760367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tree species diversity and structural composition: The case of Durgapur Hill Forest, Netrokona, Bangladesh","authors":"Md. Rayhanur Rahman, Md. Mizanur Rahman, Md. Arif Chowdhury, Jarin Akhter","doi":"10.13057/ASIANJFOR/R030102","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R030102","url":null,"abstract":"Abstract. Rahman MdR, Rahman MdM, Chowdhury MdA, Akhter J. 2019. Tree species diversity and structural composition: The case of Durgapur Hill Forest, Netrokona, Bangladesh. Asian J For 3: 10-19. Tree species diversity and stand structure of Durgapur hill forest were assessed through stratified random sampling method using sample plots of 20 m x 20 m in size during the period of October 2017 to May 2018. A total of 1436 stems of ≥5 cm DBH of 56 tree species belonging to 50 genera and 29 families were enumerated from sample area. Density (855 stem ha-1) and Basal area (29.27 m2 ha-1) of tree species were enumerated. Besides, Shannon-Wiener’s, Margalef’s, Simpson’s and Pielou’s diversity index were recorded for all the tree species. The study showed that the most dominant 10 species have 58% of the total IVI (174.29 out of 300). Where, Acacia auriculiformis showed the maximum Importance Value Index (51.02) followed by Shorea robusta (24.23). Number of individual tree species were highest (49) in the height range of 7- <12 m whereas maximum (52) species were recorded in the DBH (cm) range of 5- <10 cm. However, Acacia auriculiformis, Shorea robusta, and Tectona grandis were found as the most dominant species based on hierarchical cluster analysis. Therefore, current study will be helpful to the future policymakers in formulating forest resource management plan of Durgapur hill forest.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115136217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vegetation structure and composition in Ciletuh Geopark, Sukabumi, Indonesia","authors":"Indri Wulandari, Randi Hendrawan, T. Husodo, E. N. Megantara","doi":"10.13057/ASIANJFOR/R020203","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R020203","url":null,"abstract":"Wulandari I, Hendrawan R, Husodo T, Megantara EN. 2018. Vegetation structure and composition in Ciletuh Geopark, Sukabumi, Indonesia. Asian J For 2: 54-61. Ciletuh Geopark has unique geological exposures and plant diversity that need to be maintained and managed to provide benefits, both to the environment and society. In order to manage plant diversity, the plant species that make up the area need to be identified. This research was conducted to determine the community structure and plants diversity of the Ciletuh Geopark. The results of the study were used as basic data in determining the pattern of biodiversity management in Ciletuh Geopark. The method used is a qualitative method, through an inventory of plant species and illustrating the vegetation profile diagram. Vegetation profile diagrams represent a vertical structure of the vegetation community. Data analysis was carried out qualitatively by describing vegetation conditions. Ciletuh Geopark has four types of communities, namely natural forests, horticultural gardens (gardens, humas, and fields), kebon tatangkalan (talun), coastal vegetation and mangroves. Ciletuh Geopark has 179 plant species, from understorey to trees. In this location, there has been a change in species diversity, which is dominated by crop plant species. However, based on its conservation status, there were also plants protected by the Indonesian government, namely Rafflesia patma.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128596455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}