Pub Date : 2021-08-19DOI: 10.13057/asianjfor/r050206
Novityasari Kusumastuti, S. Suratman, A. Pitoyo
Abstract. Kusumastuti NK, Suratman, Pitoyo A. 2021. Orchids diversity on six forest types in Wasur National Park, Merauke, Papua, Indonesia. Asian J For 5: 101-110. Orchidaceae is one of the two largest families of flowering plants. Wasur National Park is the habitat of many orchid species and one of the in-situ conservation areas in Papua that is very suitable for orchids. This research aimed to determine the orchid species in Seksi Pengelolaan Taman Nasional Wilayah III (SPTN III) Wasur, Wasur National Park, Merauke District, Papua Province, Indonesia and to determine the distribution of orchid species in six different types of forest. This research was conducted using the exploratory method. A total of 25 orchid species belonging to 11 genera have been identified from SPTN III Wasur. Monsoon forest is the type of forest with the highest number of orchid species, with 15 orchid species. It is followed by savanna with ten species, Melaleuca forest with ten species, woodland forest with nine species, riparian forest with six species, and Melaleuca-Eucalyptus forest with 5 species. Dendrobium smillieae and Dendrobium rigidum are the most widely distributed epiphytic orchid species, and occur in almost all forest types. However, the terrestrial orchids, Geodorum densiflorum and Apostasia wallichii, are only found in the monsoon forest.
摘要苏拉特曼，皮托约A. 2021。印度尼西亚巴布亚梅劳克Wasur国家公园6种森林类型的兰花多样性。亚洲J . For 5: 101-110。兰科是开花植物中最大的两个科之一。Wasur国家公园是许多兰花物种的栖息地，也是巴布亚的一个自然保护区，非常适合兰花的生长。本研究旨在确定印度尼西亚巴布亚省Merauke地区Wasur国家公园Seksi Pengelolaan Taman Nasional Wilayah III (SPTN III) Wasur的兰花种类，并确定6种不同类型森林中的兰花种类分布。本研究采用探索性方法进行。本研究共鉴定出25种兰花，隶属于11属。季风林是兰花种类最多的森林类型，有15种兰花。其次是稀树草原(10种)、千层林(10种)、林地(9种)、河岸林(6种)和千层桉树林(5种)。石斛(Dendrobium smillieae)和硬石斛(Dendrobium rigidum)是分布最广的附生兰花，几乎存在于所有林型中。然而，陆生兰花，密花土兰(Geodorum densiflorum)和瓦里奇兰(Apostasia wallichii)，只在季风林中发现。
{"title":"Orchids diversity on six forest types in Wasur National Park, Merauke, Papua, Indonesia","authors":"Novityasari Kusumastuti, S. Suratman, A. Pitoyo","doi":"10.13057/asianjfor/r050206","DOIUrl":"https://doi.org/10.13057/asianjfor/r050206","url":null,"abstract":"Abstract. Kusumastuti NK, Suratman, Pitoyo A. 2021. Orchids diversity on six forest types in Wasur National Park, Merauke, Papua, Indonesia. Asian J For 5: 101-110. Orchidaceae is one of the two largest families of flowering plants. Wasur National Park is the habitat of many orchid species and one of the in-situ conservation areas in Papua that is very suitable for orchids. This research aimed to determine the orchid species in Seksi Pengelolaan Taman Nasional Wilayah III (SPTN III) Wasur, Wasur National Park, Merauke District, Papua Province, Indonesia and to determine the distribution of orchid species in six different types of forest. This research was conducted using the exploratory method. A total of 25 orchid species belonging to 11 genera have been identified from SPTN III Wasur. Monsoon forest is the type of forest with the highest number of orchid species, with 15 orchid species. It is followed by savanna with ten species, Melaleuca forest with ten species, woodland forest with nine species, riparian forest with six species, and Melaleuca-Eucalyptus forest with 5 species. Dendrobium smillieae and Dendrobium rigidum are the most widely distributed epiphytic orchid species, and occur in almost all forest types. However, the terrestrial orchids, Geodorum densiflorum and Apostasia wallichii, are only found in the monsoon forest.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126370281","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}
Pub Date : 2021-07-27DOI: 10.13057/asianjfor/r050205
U. Sen, R. Bhakat
Abstract. Sen UK, Bhakat RK. 2021. Quantitative evaluation of biological spectrum and phenological pattern of vegetation of a sacred grove of West Midnapore District, Eastern India. Asian J For 5: 83-100. Sacred groves, small forests patches devoted to deities and ancestral spirits, are classic examples of community-based, culturally aware, natural resource management. To indigenous groups that care for them, display rich biodiversity, and provide ecological services to local groups that have sustained the environment over the years, sacred groves have cultural and spiritual significance. This studied sacred forest hosts 312 plant species belonging to 257 genera under 78 families of 34 orders according to APG IV. Poales, 73, 23.40% and Poaceae, 48, 15.38% were the dominant order and family. Therophytes, cryptophytes and chamaephytes constitute a higher percentage 16.81%, 3.62% and 3.18% respectively than the normal spectrum exhibiting “thero-crypto-chamaephytic” phytoclimate. Leaf size spectra showed that the plant with leptophyll, 83, 26.60% and ovate, 59, 18.91% type's leaf lamina were dominant. The findings may have a heuristic value in developing future monitoring schemes and assessing the effects of global change in this varied but poorly studied area.
{"title":"Quantitative evaluation of biological spectrum and phenological pattern of vegetation of a sacred grove of West Midnapore District, Eastern India","authors":"U. Sen, R. Bhakat","doi":"10.13057/asianjfor/r050205","DOIUrl":"https://doi.org/10.13057/asianjfor/r050205","url":null,"abstract":"Abstract. Sen UK, Bhakat RK. 2021. Quantitative evaluation of biological spectrum and phenological pattern of vegetation of a sacred grove of West Midnapore District, Eastern India. Asian J For 5: 83-100. Sacred groves, small forests patches devoted to deities and ancestral spirits, are classic examples of community-based, culturally aware, natural resource management. To indigenous groups that care for them, display rich biodiversity, and provide ecological services to local groups that have sustained the environment over the years, sacred groves have cultural and spiritual significance. This studied sacred forest hosts 312 plant species belonging to 257 genera under 78 families of 34 orders according to APG IV. Poales, 73, 23.40% and Poaceae, 48, 15.38% were the dominant order and family. Therophytes, cryptophytes and chamaephytes constitute a higher percentage 16.81%, 3.62% and 3.18% respectively than the normal spectrum exhibiting “thero-crypto-chamaephytic” phytoclimate. Leaf size spectra showed that the plant with leptophyll, 83, 26.60% and ovate, 59, 18.91% type's leaf lamina were dominant. The findings may have a heuristic value in developing future monitoring schemes and assessing the effects of global change in this varied but poorly studied area.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123597060","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}
Pub Date : 2021-07-26DOI: 10.13057/asianjfor/r050204
Tura Bareke, A. Addi
Abstract. Bareke T, Addi A. 2021. Allometric equation for aboveground biomass estimation of Galiniera saxifraga (Hochst.) Bridson in Gesha-Sayilem forest, southwestern Ethiopia. Asian J For 5: 76-82. There is limited information about the precise quantification of Aboveground Biomass (AGB) of species-specific allometric equations for shrubs and small trees. Thirty Galiniera saxifraga plants were selected to develop species-specific allometric biomass equations. Biometric parameters, including the diameter at the Breast Height (DBH), height and crown area were predictive variables that were measured for each individual plant. AGB was measured through a destructive method. The AGB was correlated to biometric variables using regression analysis. The species-specific allometric models, with DBH and crown area as predictors (DBH-crown area models), accounted for 90% of the variation in the AGB of G. saxifraga. The DBH-crown area model was adequate for predicting the AGB for G. saxifraga with the adjusted R2 value 0.9 and AIC values was 47.37. The specific allometric equation developed for the Gesha-Sayilem Afromontane forest can be used in similar moist forests in Ethiopia to implement Reduced Emission from Deforestation and Degradation (REDD+) activities to benefit the local communities from carbon trade.
{"title":"Allometric equation for aboveground biomass estimation of Galiniera saxifraga (Hochst.) Bridson in Gesha-Sayilem forest, southwestern Ethiopia","authors":"Tura Bareke, A. Addi","doi":"10.13057/asianjfor/r050204","DOIUrl":"https://doi.org/10.13057/asianjfor/r050204","url":null,"abstract":"Abstract. Bareke T, Addi A. 2021. Allometric equation for aboveground biomass estimation of Galiniera saxifraga (Hochst.) Bridson in Gesha-Sayilem forest, southwestern Ethiopia. Asian J For 5: 76-82. There is limited information about the precise quantification of Aboveground Biomass (AGB) of species-specific allometric equations for shrubs and small trees. Thirty Galiniera saxifraga plants were selected to develop species-specific allometric biomass equations. Biometric parameters, including the diameter at the Breast Height (DBH), height and crown area were predictive variables that were measured for each individual plant. AGB was measured through a destructive method. The AGB was correlated to biometric variables using regression analysis. The species-specific allometric models, with DBH and crown area as predictors (DBH-crown area models), accounted for 90% of the variation in the AGB of G. saxifraga. The DBH-crown area model was adequate for predicting the AGB for G. saxifraga with the adjusted R2 value 0.9 and AIC values was 47.37. The specific allometric equation developed for the Gesha-Sayilem Afromontane forest can be used in similar moist forests in Ethiopia to implement Reduced Emission from Deforestation and Degradation (REDD+) activities to benefit the local communities from carbon trade.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122933993","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}
Pub Date : 2021-06-25DOI: 10.13057/asianjfor/r050203
T. Dey, Shamim Ahmed, M. A. Islam
Abstract. Dey T, Ahmed S, Islam MA. 2021. Relationships of tree height-diameter at breast height (DBH) and crown diameter-DBH of Acacia auriculiformis plantation. Asian J For 5: 71-75. Measuring the height and crown diameter in the field is time-consuming and needs more logistical efforts. Thus, in this study, we have focused on evaluating the relationship between height and crown diameter with commonly and less effortlessly measured parameters such as diameter at breast height (DBH) to reduce the inventory costs and time by using these models. Different correlation-regression models for predicting tree height and crown diameter from DBH were developed for Acacia auriculiformis species at Char Kukri-Mukri Island in the Bhola district of Bangladesh. To achieve the goal, DBH, total height, and crown diameter of each tree were recorded. Coefficient of determination (R2) and p-value was used for evaluating the models. The correlation coefficients between DBH and height and between DBH and crown diameter showed positive and significant relationships. The calculated p-value and R2 value between DBH and height and between DBH and crown diameter in the correlation-regression analysis revealed that linear regression models were best fitted in both cases. The study concluded that the tree height could be estimated by the mean of DBH and vice versa, as well as crown diameter could be estimated by the mean of DBH and vice versa.
摘要Dey T, Ahmed S, Islam MA。2021. 金合欢人工林胸高径与树冠径的关系亚洲J: 5:71 -75。在田间测量高度和冠径既耗时又需要更多的后勤工作。因此，在本研究中，我们将重点放在利用胸径(DBH)等常用且不容易测量的参数来评估高度与冠径之间的关系，以减少库存成本和时间。以孟加拉国Bhola地区Char Kukri-Mukri岛的金合欢(Acacia auriculiformis)树种为研究对象，建立了以胸径预测树高和树冠直径的相关回归模型。为了实现这一目标，记录了每棵树的胸径、总高度和冠径。采用决定系数(R2)和p值对模型进行评价。胸径与高、冠径的相关系数呈显著正相关。相关回归分析计算出胸径与高度、胸径与冠径的p值和R2值，结果表明，线性回归模型在两种情况下均最适合。研究表明，利用胸径均值可以估算树高，反之可以估算树冠直径;利用胸径均值可以估算树冠直径。
{"title":"Relationships of tree height-diameter at breast height (DBH) and crown diameter-DBH of Acacia auriculiformis plantation","authors":"T. Dey, Shamim Ahmed, M. A. Islam","doi":"10.13057/asianjfor/r050203","DOIUrl":"https://doi.org/10.13057/asianjfor/r050203","url":null,"abstract":"Abstract. Dey T, Ahmed S, Islam MA. 2021. Relationships of tree height-diameter at breast height (DBH) and crown diameter-DBH of Acacia auriculiformis plantation. Asian J For 5: 71-75. Measuring the height and crown diameter in the field is time-consuming and needs more logistical efforts. Thus, in this study, we have focused on evaluating the relationship between height and crown diameter with commonly and less effortlessly measured parameters such as diameter at breast height (DBH) to reduce the inventory costs and time by using these models. Different correlation-regression models for predicting tree height and crown diameter from DBH were developed for Acacia auriculiformis species at Char Kukri-Mukri Island in the Bhola district of Bangladesh. To achieve the goal, DBH, total height, and crown diameter of each tree were recorded. Coefficient of determination (R2) and p-value was used for evaluating the models. The correlation coefficients between DBH and height and between DBH and crown diameter showed positive and significant relationships. The calculated p-value and R2 value between DBH and height and between DBH and crown diameter in the correlation-regression analysis revealed that linear regression models were best fitted in both cases. The study concluded that the tree height could be estimated by the mean of DBH and vice versa, as well as crown diameter could be estimated by the mean of DBH and vice versa.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127142849","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}
Pub Date : 2021-06-14DOI: 10.13057/asianjfor/r050201
Citra Gilang Qur’ani, K. Yoshimura
Abstract. Qur’ani CG, Yoshimura K. 2020. Effect of low light condition on the growth and carbon use of legume seedlings. Asian J For 5: 51-59. Plants exhibit flexible changes of morphological and physiological traits to adapt to low light environments. However, the interaction between growth, functional traits among plant organs, and non-structural carbohydrates (NSCs) concentration to determine the adaptation strategies remain unclear. Three legume- and shade-intolerant species, Robinia pseudoacacia (L.), Falcataria moluccana (Miq.), and Acacia mangium (Willd.) were grown under full light (open) and 15% of light availability (shade). Changes in shoot length, diameter, organ respiration rates, and NSCs concentration were observed throughout 6 months of the growing period. Only R. pseudoacacia developed longer (13.67%) and bigger (26.61%) shoots in open sites than shade sites. Specific Leaf Area (SLA) and Specific Root Area (SRA) were bigger in shade than in open site for all species (SLA=±2 times; SRA=±1-4 times). Dry mass, respiration rates, and NSCs in R. pseudoacacia were allocated more to the roots but were more to the leaves in F. moluccana and A. mangium. Based on the interactions among morphological and physiological parameters, our results show that different legume species develop specific growth, morphological traits and carbon use (NSCs) under shade conditions, which exhibit flexibility changes as part of adaptation strategy to the low-light environment.
{"title":"Effect of low light condition on the growth and carbon use of legume seedlings","authors":"Citra Gilang Qur’ani, K. Yoshimura","doi":"10.13057/asianjfor/r050201","DOIUrl":"https://doi.org/10.13057/asianjfor/r050201","url":null,"abstract":"Abstract. Qur’ani CG, Yoshimura K. 2020. Effect of low light condition on the growth and carbon use of legume seedlings. Asian J For 5: 51-59. Plants exhibit flexible changes of morphological and physiological traits to adapt to low light environments. However, the interaction between growth, functional traits among plant organs, and non-structural carbohydrates (NSCs) concentration to determine the adaptation strategies remain unclear. Three legume- and shade-intolerant species, Robinia pseudoacacia (L.), Falcataria moluccana (Miq.), and Acacia mangium (Willd.) were grown under full light (open) and 15% of light availability (shade). Changes in shoot length, diameter, organ respiration rates, and NSCs concentration were observed throughout 6 months of the growing period. Only R. pseudoacacia developed longer (13.67%) and bigger (26.61%) shoots in open sites than shade sites. Specific Leaf Area (SLA) and Specific Root Area (SRA) were bigger in shade than in open site for all species (SLA=±2 times; SRA=±1-4 times). Dry mass, respiration rates, and NSCs in R. pseudoacacia were allocated more to the roots but were more to the leaves in F. moluccana and A. mangium. Based on the interactions among morphological and physiological parameters, our results show that different legume species develop specific growth, morphological traits and carbon use (NSCs) under shade conditions, which exhibit flexibility changes as part of adaptation strategy to the low-light environment.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128485987","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}
Pub Date : 2021-02-10DOI: 10.13057/ASIANJFOR/R050104
A. Azad, Md. Najmus Sayadat Pitol, Md. Golam Rakkibu
Abstract. Azad AK, Pitol MNS, Rakkibu MG. 2020. Livelihood status of Sundarbans dependent people at Shymnagar Upazila of Satkhira, Bangladesh. Asian J For 5: 28-35. The study aims to know the livelihood status and dependency on Sundarbans at Shymnagar Upazila in the Satkhira district. A questionnaire survey was carried from 130 respondents in three unions. Most of the respondents (65%) were middle-aged (30-50 years old) and 22% of them were female and 78% were male. Among them about 51% were illiterate, 24% had primary education, while 25% had secondary education. About 72% of respondents were fully dependent and 21% were partially dependent on Sundarbans for their livelihood. Only 37% of people in these areas had their shrimp farm (gher). The respondents collected fuelwood (92%), aquatic resources (80%), small timber (54%), honey (27%), goran (Ceriops decandra) (8%), and golpata (Nypa fruticans) (6%) from Sundarbans. Only 63% of respondents had their livestock like cows (2%), poultry (68%), and goats (30%), whereas 84% of respondents were involved with different NGOs. Among the respondents, 70% had the access to disaster warnings, whereas only 24% had shelter facilities. Only 28% of respondents had access to drinking water from deep tube-well and 33% from ponds. About 50% of respondents did not get better medical treatment and were dependent on village doctors and only 8% of respondents received treatment from Government hospitals. It was alarming to know that about 91% of respondents did not know co-management in Sundarbans. Most of the people living here were not satisfied with their present occupations and about 98% of them were eager to start a new occupation. Only 11% of respondents got benefitted from government Vulnerable Group Feeding / Vulnerable Group Development support.
{"title":"Livelihood status of Sundarbans dependent people at Shymnagar Upazila of Satkhira, Bangladesh","authors":"A. Azad, Md. Najmus Sayadat Pitol, Md. Golam Rakkibu","doi":"10.13057/ASIANJFOR/R050104","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R050104","url":null,"abstract":"Abstract. Azad AK, Pitol MNS, Rakkibu MG. 2020. Livelihood status of Sundarbans dependent people at Shymnagar Upazila of Satkhira, Bangladesh. Asian J For 5: 28-35. The study aims to know the livelihood status and dependency on Sundarbans at Shymnagar Upazila in the Satkhira district. A questionnaire survey was carried from 130 respondents in three unions. Most of the respondents (65%) were middle-aged (30-50 years old) and 22% of them were female and 78% were male. Among them about 51% were illiterate, 24% had primary education, while 25% had secondary education. About 72% of respondents were fully dependent and 21% were partially dependent on Sundarbans for their livelihood. Only 37% of people in these areas had their shrimp farm (gher). The respondents collected fuelwood (92%), aquatic resources (80%), small timber (54%), honey (27%), goran (Ceriops decandra) (8%), and golpata (Nypa fruticans) (6%) from Sundarbans. Only 63% of respondents had their livestock like cows (2%), poultry (68%), and goats (30%), whereas 84% of respondents were involved with different NGOs. Among the respondents, 70% had the access to disaster warnings, whereas only 24% had shelter facilities. Only 28% of respondents had access to drinking water from deep tube-well and 33% from ponds. About 50% of respondents did not get better medical treatment and were dependent on village doctors and only 8% of respondents received treatment from Government hospitals. It was alarming to know that about 91% of respondents did not know co-management in Sundarbans. Most of the people living here were not satisfied with their present occupations and about 98% of them were eager to start a new occupation. Only 11% of respondents got benefitted from government Vulnerable Group Feeding / Vulnerable Group Development support.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"92 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113996402","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}
Pub Date : 2021-02-06DOI: 10.13057/ASIANJFOR/R050102
J. Daramola, F. E. Adesuyi, O. G. Olugbadieye, A. Akinbowale, V. Adekunle
Abstract. Daramola JO, Adesuyi FE, Olugbadieye OG, Akinbowale AS, Adekunle VAJ. 2020. Rate of timber harvest and the effects of illegal activities on forest conservation in Southwestern Nigeria. Asian J For 5: 8-16. Availability of accurate data on timber harvest is very important for sustainable forest management. These data are not readily available, making forest management more complex. This study aimed at investigating the rate of timber harvest, illegal activities and its impacts on forest conservation in Osun State Forest Reserves. The selected reserves were Shasha Forest Reserve (SFR), Ago-Owu Forest Reserve (AFR), and Ikeji-Ipetu Forest Reserve (IFR). Data were collected using two sets of semi-structured questionnaires. One for the forest community dwellers and the other for forest officers. Simple random sampling was used to select 120 respondents from the population of concessionaires, saw millers, rural community dwellers, taungya farmers and the government officers in the study area. Secondary data was collected and compiled from the State Forestry Department to provide results for timber harvested only in SFR from January to July, 2019. The results revealed that SFR is under massive timber exploitation, as illegal logging and timber processing are the most prevalent driver of exploitation in this area; while AFR and IFR are degraded forest reserves marred with grazing and poaching, and illegal logging, respectively. The impacts of the illegal activities on forest conservation were categorized under economic, social, and environmental impacts. The most exploited species in SFR were Celtis spp. (3024 stems), Ricinodendron heudelotii (1789 stems), and the least exploited was Anthocleista spp. (3 stems). The study showed that many economic tree species that contribute to national development and rural livelihood have been exploited from the study sites and therefore recommend that timber harvest be carried out on a sustainable basis.
{"title":"Rate of timber harvest and the effects of illegal activities on forest conservation in Southwestern Nigeria","authors":"J. Daramola, F. E. Adesuyi, O. G. Olugbadieye, A. Akinbowale, V. Adekunle","doi":"10.13057/ASIANJFOR/R050102","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R050102","url":null,"abstract":"Abstract. Daramola JO, Adesuyi FE, Olugbadieye OG, Akinbowale AS, Adekunle VAJ. 2020. Rate of timber harvest and the effects of illegal activities on forest conservation in Southwestern Nigeria. Asian J For 5: 8-16. Availability of accurate data on timber harvest is very important for sustainable forest management. These data are not readily available, making forest management more complex. This study aimed at investigating the rate of timber harvest, illegal activities and its impacts on forest conservation in Osun State Forest Reserves. The selected reserves were Shasha Forest Reserve (SFR), Ago-Owu Forest Reserve (AFR), and Ikeji-Ipetu Forest Reserve (IFR). Data were collected using two sets of semi-structured questionnaires. One for the forest community dwellers and the other for forest officers. Simple random sampling was used to select 120 respondents from the population of concessionaires, saw millers, rural community dwellers, taungya farmers and the government officers in the study area. Secondary data was collected and compiled from the State Forestry Department to provide results for timber harvested only in SFR from January to July, 2019. The results revealed that SFR is under massive timber exploitation, as illegal logging and timber processing are the most prevalent driver of exploitation in this area; while AFR and IFR are degraded forest reserves marred with grazing and poaching, and illegal logging, respectively. The impacts of the illegal activities on forest conservation were categorized under economic, social, and environmental impacts. The most exploited species in SFR were Celtis spp. (3024 stems), Ricinodendron heudelotii (1789 stems), and the least exploited was Anthocleista spp. (3 stems). The study showed that many economic tree species that contribute to national development and rural livelihood have been exploited from the study sites and therefore recommend that timber harvest be carried out on a sustainable basis.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123020003","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}
Pub Date : 2020-07-10DOI: 10.13057/ASIANJFOR/R040204
Shourav Dutta, M. K. Hossain
Abstract. Dutta S, Hossain MK. 2020. Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach. Asian J For 4: 65-75. The oldest mangrove forest of Indian sub-continent namely Chakaria Sundarbans (CS) is currently in a critical situation. Destructive anthropogenic and natural impacts coupled with shrimp farming and excessive grazing has caused severe damage to this oldest mangrove ecosystem. A study was carried out based on the extensive literature survey and tried to explore the overall situation and conservation practices for CS of Bangladesh. This paper analyzed, reviewed, and identified the impacts of natural and man-made effects on CS mangroves. Finally, we recommended the sustainable management approach (SMA) including policy and participation of the local people for bringing back this potential natural mangrove forest resource of CS along with rich forest diversity.
{"title":"Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach","authors":"Shourav Dutta, M. K. Hossain","doi":"10.13057/ASIANJFOR/R040204","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R040204","url":null,"abstract":"Abstract. Dutta S, Hossain MK. 2020. Bringing back the Chakaria Sundarbans mangrove forest of South-east Bangladesh through sustainable management approach. Asian J For 4: 65-75. The oldest mangrove forest of Indian sub-continent namely Chakaria Sundarbans (CS) is currently in a critical situation. Destructive anthropogenic and natural impacts coupled with shrimp farming and excessive grazing has caused severe damage to this oldest mangrove ecosystem. A study was carried out based on the extensive literature survey and tried to explore the overall situation and conservation practices for CS of Bangladesh. This paper analyzed, reviewed, and identified the impacts of natural and man-made effects on CS mangroves. Finally, we recommended the sustainable management approach (SMA) including policy and participation of the local people for bringing back this potential natural mangrove forest resource of CS along with rich forest diversity.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127679583","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}
Pub Date : 2020-06-10DOI: 10.13057/ASIANJFOR/R040202
Ruhama Maya Sari, H. Djong, D. Roesma
Abstract. Tjong DH, Sari RM, Roesma DI. 2020. Morphological variation of plantain squirrel Callosciurus notatus (Boddaert, 1785) (Rodentia: Sciuridae) population in West Sumatra, Indonesia. Asian J For 21: 54-60. A study about the morphological variation of plantain squirrel among several populations in West Sumatra has been done in West Sumatra. There were 38 specimens of C. notatus collected from Padang, Lubuk Basung, Sangir, and Baso by using a survey and direct collection method. The morphometric measurement was conducted in the Laboratory of Genetic and Biomolecular, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University. Morphological measurement data based on 21 external characters and 35 skull characters were analyzed by the Kruskall Wallis test, Principal Component Analysis (PCA), and Unweighted Pair Group Method Arithmetic Average (UPGMA). The result showed that there was morphological variation in ten body characters and nine skull characters. It is necessary to do further research to determine what environmental factors specifically influence certain morphological characters.
{"title":"Morphological variation of plantain squirrel Callosciurus notatus (Boddaert, 1785) (Rodentia: Sciuridae) population in West Sumatra, Indonesia","authors":"Ruhama Maya Sari, H. Djong, D. Roesma","doi":"10.13057/ASIANJFOR/R040202","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R040202","url":null,"abstract":"Abstract. Tjong DH, Sari RM, Roesma DI. 2020. Morphological variation of plantain squirrel Callosciurus notatus (Boddaert, 1785) (Rodentia: Sciuridae) population in West Sumatra, Indonesia. Asian J For 21: 54-60. A study about the morphological variation of plantain squirrel among several populations in West Sumatra has been done in West Sumatra. There were 38 specimens of C. notatus collected from Padang, Lubuk Basung, Sangir, and Baso by using a survey and direct collection method. The morphometric measurement was conducted in the Laboratory of Genetic and Biomolecular, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University. Morphological measurement data based on 21 external characters and 35 skull characters were analyzed by the Kruskall Wallis test, Principal Component Analysis (PCA), and Unweighted Pair Group Method Arithmetic Average (UPGMA). The result showed that there was morphological variation in ten body characters and nine skull characters. It is necessary to do further research to determine what environmental factors specifically influence certain morphological characters.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132613766","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}
Pub Date : 2020-06-07DOI: 10.13057/ASIANJFOR/R040201
A. Brites
Abstract. Brites AD. 2020. New Forest Code effects over smallholder’s intention to trade non-timber forest products. Asian J For 21: 41-45. The Brazilian new Forest Code (NFC) allows the sustainable economic use of one of its main mechanisms for native vegetation protection: the Legal Reserves. Smallholders' intention to trade non-timber forest products (NTFP) from such areas was accessed. Data were collected through 350 in-person surveys in two municipalities from Bahia, Brazil. Outcomes showed that more than half of the respondents do not intend to trade NTFP from their Legal Reserve areas and, the lack of knowledge about the process to obtain government permission for the economic use of these areas, was the main reason gave to justify it. Further, higher household incomes showed a negative correlation with the intention. Incentives from public or private policies and dissemination about the steps needed to obtain permission for Legal Reserve’s sustainable use are needed for engaging smallholders in NTFP trade. With these incentives, it would be possible to increase the NFC potential for adding economic value to the protected native vegetation and for linking conservation with the economic development of rural areas inhabitants. Thus, these outcomes add up to previous findings of the benefits of NTFP trade, and in terms of practice and policy, they can help in the development of environmental policies that incentivize the NTFP trade, contributing to increase landholders’ incomes and to the NFC compliance.
{"title":"New Forest Code effects over smallholder’s intention to trade non-timber forest products","authors":"A. Brites","doi":"10.13057/ASIANJFOR/R040201","DOIUrl":"https://doi.org/10.13057/ASIANJFOR/R040201","url":null,"abstract":"Abstract. Brites AD. 2020. New Forest Code effects over smallholder’s intention to trade non-timber forest products. Asian J For 21: 41-45. The Brazilian new Forest Code (NFC) allows the sustainable economic use of one of its main mechanisms for native vegetation protection: the Legal Reserves. Smallholders' intention to trade non-timber forest products (NTFP) from such areas was accessed. Data were collected through 350 in-person surveys in two municipalities from Bahia, Brazil. Outcomes showed that more than half of the respondents do not intend to trade NTFP from their Legal Reserve areas and, the lack of knowledge about the process to obtain government permission for the economic use of these areas, was the main reason gave to justify it. Further, higher household incomes showed a negative correlation with the intention. Incentives from public or private policies and dissemination about the steps needed to obtain permission for Legal Reserve’s sustainable use are needed for engaging smallholders in NTFP trade. With these incentives, it would be possible to increase the NFC potential for adding economic value to the protected native vegetation and for linking conservation with the economic development of rural areas inhabitants. Thus, these outcomes add up to previous findings of the benefits of NTFP trade, and in terms of practice and policy, they can help in the development of environmental policies that incentivize the NTFP trade, contributing to increase landholders’ incomes and to the NFC compliance.","PeriodicalId":115036,"journal":{"name":"Asian Journal of Forestry","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121564468","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}
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