Journal of Tropical Forest Science最新文献_第9页

GALLERY FORESTS FLORA AND TREE STRUCTURE REINFORCE ATLANTIC FOREST OCCURRENCE IN BRAZILIAN CENTRAL PLATEAU 廊道林的植物区系和树木结构加强了巴西中部高原大西洋林的发生

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-04-22 DOI: 10.26525/jtfs2022.34.2.199

N. Nascimento, Fag Guilherme, K. Ressel, G. Ferreira, Ses Carneiro, G. Silva

引用次数: 0

EVALUATION OF ROOT PROFILES AND ENGINEERING PROPERTIES OF PLANTS FOR SOIL REINFORCEMENT 土壤加固植物根系剖面及工程特性的评价

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-04-22 DOI: 10.26525/jtfs2022.34.2.176

M. Saifuddin, N. Osman

引用次数: 1

LOCAL VISITORS’ WILLINGNESS TO PAY FOR CONSERVATION FEE AT KAMPUNG KUANTAN FIREFLY PARK, KUALA SELANGOR, MALAYSIA 马来西亚吉隆坡，当地游客在甘峰关丹萤火虫公园支付保育费的意愿

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-04-22 DOI: 10.26525/jtfs2022.34.2.187

H. Li, K.M. Nitanan

{"title":"LOCAL VISITORS’ WILLINGNESS TO PAY FOR CONSERVATION FEE AT KAMPUNG KUANTAN FIREFLY PARK, KUALA SELANGOR, MALAYSIA","authors":"H. Li, K.M. Nitanan","doi":"10.26525/jtfs2022.34.2.187","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.2.187","url":null,"abstract":"Fireflies in Kuala Selangor, Malaysia are threatened by habitat destruction, soil degradation and light pollution. The main objective of this study was to estimate the local tourists' willingness to pay a conservation fee at Kampung Kuantan Firefly Park. The best data collection method chosen in the midst of the Covid-19 pandemic was an online questionnaire survey. The study used a purposive sampling technique, as only those who visited Kampung Kuantan Firefly Park were eligible to complete the online survey. The willingness to pay questionnaire was developed using the Open-Ended Contingent Valuation Method. A total of 385 respondents were included for data analysis. The results of Tobit regression analysis indicated that age, education, gender and attitude had significant relationship with willingness to pay. Based on the willingness to pay estimate equation, the overall mean willingness to pay for the conservation fee was 9.44 RM per visit. The research findings will assist policymakers in taking the obligatory actions to protect and conserve precious natural resources and provide information to the natural park department in order to achieve a sustainable ecotourism plan for Kampung Kuantan Firefly Park in Kuala Selangor, Malaysia. [ FROM AUTHOR] Copyright of Journal of Tropical Forest Science is the property of Forest Research Institute of Malaysia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full . (Copyright applies to all s.)","PeriodicalId":17389,"journal":{"name":"Journal of Tropical Forest Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44906358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RELATIONSHIP BETWEEN ENDOGENOUS AUXIN (INDOLE- 3-ACETIC ACID) AND ADVENTITIOUS ROOTING IN DALBERGIA SPECIES OF DIFFERENT ROOTING ABILITY 内生生长素(吲哚- 3-乙酸)与不同生根能力黄檀种属不定根的关系

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-04-22 DOI: 10.26525/jtfs2022.34.2.149

P. Kumar, A. Chaturvedi, V. Vaishnav

引用次数: 0

INFLUENCE OF ABIOTIC FACTORS ON GROWTH AND DEVELOPMENT OF GIANT BAMBOO (DENDROCALAMUS ASPER) IN BUKIDNON, PHILIPPINES 非生物因素对菲律宾布基农巨竹生长发育的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.63

LG Aribal, Jason A. Parlucha, JN Gelaga, R. Aguinsatan

{"title":"INFLUENCE OF ABIOTIC FACTORS ON GROWTH AND DEVELOPMENT OF GIANT BAMBOO (DENDROCALAMUS ASPER) IN BUKIDNON, PHILIPPINES","authors":"LG Aribal, Jason A. Parlucha, JN Gelaga, R. Aguinsatan","doi":"10.26525/jtfs2022.34.1.63","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.63","url":null,"abstract":"The study examines the gross morphology of giant bamboo (Dendrocalamus asper) relative to varying elevation, temperature, and relative humidity in five forest areas of Bukidnon province in the Philippines. Results revealed that variations in leaf sizes and the number of nodes and internodes among elevation ranges were not significant. However, the culm length of giant bamboo was significantly higher in the mid-elevation range (644–892 m asl) and lower elevation range (344–447 m asl) compared to culms in higher elevations. In addition, differences in culm diameter and culm thickness were significant showing larger diameter and thicker culms in the mid-elevation range (644–892 m asl) as compared to the higher (1117–1124 m asl) and lower (344–347 m asl) elevation range. The level of phosphorus and nitrogen was the highest in the mid and lower elevation range while potassium level was abundant in the highest elevations. Correlation analysis showed a negative relationship between culm lengths to elevation and relative humidity while mid and top section diameters were negatively correlated to temperature until 892 m asl. Leaf area and leaf width were strongly influenced by phosphorus level. The canonical correspondence analysis showed culm lengths were affected by relative humidity and elevation while the number of nodes and internodes, top and mid-section culm thickness, average diameter and basal section diameters were affected by temperature. Non-metric multidimensional scaling revealed that variation in bamboo morphology occured at the lowest and highest elevation while overall similarity was observed at 600–900 m asl elevation, suggesting an optimal growth for giant bamboo might be within the range.","PeriodicalId":17389,"journal":{"name":"Journal of Tropical Forest Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48306642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

SPECIATION IN THE MALAY PENINSULA IN RELATION TO DIPTEROCARP FOREST HEIGHT, STRUCTURE, TURNOVER, AND REPRODUCTIVE BIOLOGY 马来半岛的物种形成与双龙果林高度、结构、周转和生殖生物学的关系

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.103

Fsp Ng, I. Zubir, Z. Zurfatiha, Dsk Sharma, A. Latiff, Z. Hazrina, A. Shahira, H. Shah- Redza

引用次数: 0

IMPACTS OF BAMBUSA BAMBOS SPREAD ON SEEDLING RECRUITMENT, MORTALITY AND REGENERATION POTENTIAL OF NATIVE SPECIES IN TROPICAL MOIST EVERGREEN FORESTS OF SRI LANKA 竹林传播对斯里兰卡热带湿常绿森林本地物种幼苗补充、死亡和更新潜力的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.48

T. Wijewickrama, I. Karunaratne, S. Wijesundara, S. Madawala

{"title":"IMPACTS OF BAMBUSA BAMBOS SPREAD ON SEEDLING RECRUITMENT, MORTALITY AND REGENERATION POTENTIAL OF NATIVE SPECIES IN TROPICAL MOIST EVERGREEN FORESTS OF SRI LANKA","authors":"T. Wijewickrama, I. Karunaratne, S. Wijesundara, S. Madawala","doi":"10.26525/jtfs2022.34.1.48","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.48","url":null,"abstract":"Some native plants expand their populations rapidly in their home ranges, altering their structure and composition. Bambusa bambos, a native bamboo species, shows a rapid population expansion in tropical moist evergreen forests in the intermediate climatic zone, Sri Lanka. The present study was conducted to evaluate its impacts on the regeneration potential of other native forest species. The seedling emergence, survival and mortality were observed for a period of one year using quadrats laid along 18 transects marked from the forest edge towards the forest interior in forest patches with and without bamboo (+Bb and –Bb, respectively). The results revealed a higher abundance, richness and diversity of seedlings in +Bb than in -Bb, with lianas and herbs contributing more to these differences. However, tree seedlings showed higher turnover rates (recruitment and mortality) in -Bb, indicating their preference for undisturbed habitats. Tree and shrub seedlings survived better in -Bb forests while liana and herbaceous seedlings displaying the opposite. The results indicate that B. bambos spread showed an ability to alter the regeneration potential of native forests probably resulting bamboo-driven changes to micro-environmental conditions in the forest floor.","PeriodicalId":17389,"journal":{"name":"Journal of Tropical Forest Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41829362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

THERMAL COMPRESSION EFFECT ON SEVERAL PROPERTIES OF 8-YEAR-OLD WARU GUNUNG (HIBISCUS MACROPHYLLLUS) WOOD 热压缩对8年生木槿木材若干性能的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.74

E. Basri, K. Yuniarti, Saefudin

{"title":"THERMAL COMPRESSION EFFECT ON SEVERAL PROPERTIES OF 8-YEAR-OLD WARU GUNUNG (HIBISCUS MACROPHYLLLUS) WOOD","authors":"E. Basri, K. Yuniarti, Saefudin","doi":"10.26525/jtfs2022.34.1.74","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.74","url":null,"abstract":"The study aimed to investigate the effect of thermal compression on the properties of 8-year-old waru gunung wood. Wood specimens with the dimension of 25 mm100 mm150 mm in thickness, width and length, respectively were heated at 180 ˚C and 200 ˚C for 4 h. During the heating process, the specimens were subsequently compressed at 2.452 N mm−2 for 40 mins at each temperature. Changes in the wood chemical structure were examined using the pyrolysis-gas chromatography-mass spectrometry, the wood physical properties were tested according to ASTM D143-94, the wood surface hardness was tested using a Universal Testing Machine and the wood discoloration was examined using the CIELab method. The changes in crystallinity degree was examined using x-ray diffraction and cell structure were collected as supporting data. Results showed that the thermal compression at 180 ˚C and 200 ˚C caused severe degradation on the specimen carbohydrate but less for lignin. The sum effect of thermal compression on the specimens also consecutively increased the density by 34.24% and 41.87% and surface hardness by 52.78% and 63.09% and decreased the swelling thickness by 38.54% and 47.03% and the equilibrium moisture content by 36.53% and 38.59% at 180 ˚C and 200 ˚C, respectively. Thermally compressed specimens also had darker colours, glossier surfaces and smoother texture compared to non-thermally compressed specimens.","PeriodicalId":17389,"journal":{"name":"Journal of Tropical Forest Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46252909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

MANAGEMENT STRATEGIES FOR PREVENTION OF FOREST FIRE AND ENVIRONMENTAL DEGRADATION IN TROPICS WITH SPECIAL REFERENCE TO WESTERN GHATS OF KERALA REGION, INDIA 防止热带地区森林火灾和环境退化的管理战略，特别是关于印度喀拉拉邦西部高止山脉的管理战略

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.24

A. Menon, RG Vishnu-Menon

{"title":"MANAGEMENT STRATEGIES FOR PREVENTION OF FOREST FIRE AND ENVIRONMENTAL DEGRADATION IN TROPICS WITH SPECIAL REFERENCE TO WESTERN GHATS OF KERALA REGION, INDIA","authors":"A. Menon, RG Vishnu-Menon","doi":"10.26525/jtfs2022.34.1.24","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.24","url":null,"abstract":"Management of forest fire is one of the top priority activities of forest departments, both in tropics and temperate regions. Extensive amount and intensive efforts are deployed to combat fire. The results of a case study on forest fire prone mapping conducted at Periyar tiger reserve in Western Ghats of Kerala, India, was highlighted, and based on the study, the implementation of fire management strategies were discussed. The fire risk map was validated with the forest fire inventory points of Forest Survey of India. Forest fire is a frequent occurrence in tropical forests, especially in moist deciduous and dry deciduous regions. Though forest fire management is one of the major activities of forest departments, the forest fire mitigation is not 100% successful. The magnitude of forest fire, its frequency, potential location, etc., can be assessed using Geoinformatics techniques, by giving different weightage status to fire controlling factors. A case study was conducted on these lines and control measures were highlighted using different management strategies. The implementation of the desired action plan for sustainable development and conservation of forests can be successful only by getting the full support and confidence of the stakeholders. The stakeholder support for environmental management aspects is possible only by convincing them that they are directly or indirectly getting the benefits by the proposed action. Usually, most of the environmental management activities may lead to nontangible benefits, which is apparently non-visible, hence getting stakeholder support may not be an easy task. Various marketing strategies needs to be used to convince the beneficiaries to implement good conservation practices for the betterment of the local inhabitants.","PeriodicalId":17389,"journal":{"name":"Journal of Tropical Forest Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41395396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

EFFECT OF GENETIC GAIN IN DIAMETER AND WOOD DENSITY ON ADVANCED GENERATION BREEDING STRATEGY OF ACACIA MANGIUM IN INDONESIA 直径和木材密度的遗传增益对印尼芒果金合欢新一代育种策略的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.92

S. Sunarti, A. Nirsatmanto, J. Brawner, T. Setyaji, D. Kartikaningtyas, BR Handayani, Surip, F. Hidayati

{"title":"EFFECT OF GENETIC GAIN IN DIAMETER AND WOOD DENSITY ON ADVANCED GENERATION BREEDING STRATEGY OF ACACIA MANGIUM IN INDONESIA","authors":"S. Sunarti, A. Nirsatmanto, J. Brawner, T. Setyaji, D. Kartikaningtyas, BR Handayani, Surip, F. Hidayati","doi":"10.26525/jtfs2022.34.1.92","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.92","url":null,"abstract":"Breeding of Acacia mangium in Indonesia was initially focused on selection for improving growth and stem form. Changes in wood density which resulted from selection for improved growth was impacted by adverse correlation between the both traits. This study aimed to quantify genetic gain in the diameter and wood density from two A. mangium breeding generations and to use this information in developing breeding strategy to improve both traits simultaneously. Materials were obtained from 4.5-year-old trees in a progeny trial consisting of families from first (F-1) and second (F-2) generations along with infused families (F-0) as control. Genetic gain was calculated as the percent increase in diameter and wood density from F-1 and F-2 over the control. Diameter and wood density from F-1 and F-2 were higher than F-0. Genetic gains for diameter increased from 3.7% in F-1 to 7.0% in F-2. Conversely, gain for wood density decreased from 1.9% in F-1 to 0.3% in F-2. Correlations between diameter and wood density varied from weak to moderate along the stem sections. The results imply a combined approach incorporating selection for diameter and wood density in mixed-breeding generations will provide simultaneous improvement in both traits.","PeriodicalId":17389,"journal":{"name":"Journal of Tropical Forest Science","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49430728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2