Journal of Tropical Forest Science最新文献_第10页

EFFECTS OF CANOPY OPENNESS ON SEEDLING SURVIVAL AND GROWTH AFTER SELECTIVE LOGGING IN A MONODOMINANT LOWLAND SWAMP FOREST IN COSTA RICA 哥斯达黎加单一优势低地沼泽林选择性采伐后林冠开放度对幼苗存活和生长的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.34

OJ Valverde-Barrantes, J. Hogan, OJ Rocha

{"title":"EFFECTS OF CANOPY OPENNESS ON SEEDLING SURVIVAL AND GROWTH AFTER SELECTIVE LOGGING IN A MONODOMINANT LOWLAND SWAMP FOREST IN COSTA RICA","authors":"OJ Valverde-Barrantes, J. Hogan, OJ Rocha","doi":"10.26525/jtfs2022.34.1.34","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.34","url":null,"abstract":"The mechanism proposed to explain tree monodominance in tropical forests is that the dominant species forms a dense canopy and produces shade-tolerant seedlings, which together favor selfreplacement. Under this hypothesis, seedlings of monodominant species should have limited ability to respond to drastic increases in understory light, like those resulting from logging. Therefore, monodominant species should lose their seedling dominance after logging-induced canopy opening. To test this hypothesis, the current study measured seedling survival and growth of the monodominant species, Prioria copaifera, and its main competitor, Pentaclethra macroloba, in two forest stands that differ in logging history and in an unlogged stand in southeastern Costa Rica. Although, growth rates and survival of previously established seedlings were similar for both species across the three stands, seedling survival and growth decreased as light increased, with the effect being more pronounced for Prioria than for Pentaclethra. The study also investigated the ability of Prioria to respond to changing light environments by transplanting seedlings into logging-induced canopy gaps. Contrary to prediction, Prioria seedlings survived and grew better in gap centers than in gap edges or under a closed canopy. This result contrasts with established seedlings that cannot acclimate to changes in light conditions. Therefore, we conclude that continued Prioria dominance in selectively logged forests depends more on seedling production after canopy disturbance than on the established seedling present before disturbances.","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":"46210660","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

FORMULATION OF ALTERNATIVE MEDIA FOR FUNGAL GROWTH AND ITS APPLICATION AS AGARWOOD-INDUCING AGENT IN AQUILARIA TREES 真菌生长替代培养基的配方及其在沉香诱导剂中的应用

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.127

Z. Rozihawati, WA Wan-Muhammad-Azrul, Noor-Baity, M. Sheriza, A. Hazandy, A. Mohd-Farid, S. Zaiton

{"title":"FORMULATION OF ALTERNATIVE MEDIA FOR FUNGAL GROWTH AND ITS APPLICATION AS AGARWOOD-INDUCING AGENT IN AQUILARIA TREES","authors":"Z. Rozihawati, WA Wan-Muhammad-Azrul, Noor-Baity, M. Sheriza, A. Hazandy, A. Mohd-Farid, S. Zaiton","doi":"10.26525/jtfs2022.34.1.127","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.127","url":null,"abstract":"This study investigated the growth performance of Fusarium proliferatum isolated from agarwood, on different types of plated media prepared with liquid broth extracts of locally available agricultural products. The potential of F. proliferatum in selected media to induce agarwood formation in Aquilaria trees was also assessed. A total of 27 media formulations were evaluated as alternative media to potato dextrose agar (PDA) for F. proliferatum. The effects of culture media on the diameter growth of fungal mycelium were significant (F = 6.70, df = 26, p < 0.01). The best growth was recorded on 50% soybean followed by PDA and 70% kidney bean with mean mycelium diameters of 7.00 ± 0.00, 6.63 ± 0.83 and 6.50 ± 0.06 cm respectively. In the field trial, F. proliferatum in all three media successfully induced agarwood formation on A. malaccensis and A. crassna with significant discoloration zones compared with the uninoculated control trees (p ≤ 0.05) after five months. Fifty percent soybean in combination with F. proliferatum induced the largest discoloration zone, indicating potential as a cheaper and more accessible alternative to PDA. These results suggest that the combination of a chemical inducer in the form of a liquid media formulation and a biological inducer, in this case, an endophytic fungus could successfully induce agarwood formation in Aquilaria trees.","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":"41899508","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

LATERAL GROWTH AFFECTS XYLEM MATURATION PROPERTIES OF 8-YEAR-OLD BIG-LEAF MAHOGANY (SWIETENIA MACROPHYLLA) 侧方生长对8年生大叶桃花心木木质部成熟特性的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.1

DM Gilbero, WP Abasolo, M. Matsuo, H. Yamamoto

{"title":"LATERAL GROWTH AFFECTS XYLEM MATURATION PROPERTIES OF 8-YEAR-OLD BIG-LEAF MAHOGANY (SWIETENIA MACROPHYLLA)","authors":"DM Gilbero, WP Abasolo, M. Matsuo, H. Yamamoto","doi":"10.26525/jtfs2022.34.1.1","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.1","url":null,"abstract":"The area of juvenile wood zone of an 8-year-old planted big-leaf mahogany (Swietenia macrophylla) was uniform regardless of diameter. Hence, it was assumed that xylem maturation is dependent on diameter. Radial distribution patterns with reference from the pith exhibited short fibre and vessel lengths, narrow vessel width and low xylem density, and exhibited gradual increase outward and became more or less stable near the bark. However, the radial distribution patterns of fibre width and modulus of elasticity were scattered regardless of tree diameter sizes. Fibre length, vessel length, vessel width and xylem density of the juvenile wood zones showed significant differences compared with the transition and mature wood zones. However, no significant difference was observed between transition wood zone and mature wood zone except for fibre length. A negative correlation was observed in fibre length, vessel length, vessel width and xylem density in terms of their relationship with diameter at breast height and the radial distribution of fibre (i.e. b-value), and the diameter boundaries of the three wood zones. At diameters 18.08, 17.36, 16.23 and 17.87 cm respectively, fibre length, vessel length, vessel width and xylem density can be used to identify xylem maturation boundary.","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":"44808305","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

EFFECTS OF TREE SPACING AND FORKING ON THE MODIFICATION OF WOOD DENSITY IN A TRIAL PLANTATION OF TACHIGALI VULGARIS FOR ENERGY IN AMAZONIA 间伐和叉伐对亚马逊地区普通大枣能量林木材密度变化的影响

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.11

UO Barros-Junior, Was Rosário, Mdr Lima, M. Silva, Eps Patrício, D. Gonçalves, L. Bufalino, TP Protásio

{"title":"EFFECTS OF TREE SPACING AND FORKING ON THE MODIFICATION OF WOOD DENSITY IN A TRIAL PLANTATION OF TACHIGALI VULGARIS FOR ENERGY IN AMAZONIA","authors":"UO Barros-Junior, Was Rosário, Mdr Lima, M. Silva, Eps Patrício, D. Gonçalves, L. Bufalino, TP Protásio","doi":"10.26525/jtfs2022.34.1.11","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.11","url":null,"abstract":"The study investigated the intra-stem and inter-stem variations of wood basic density in Tachigali vulgaris, influenced by different planting spacing and the occurrence of forking in a trial carried out in Pará State, Brazil. The experiment was performed in a randomised block design, arranged in a split-plot scheme, where plot effect was constituted by planting spacing (4.5, 6.0, 7.5, 9.0, 10.5 and 12.0 m2) and forking, as the effect of subplot (forked or not forked). The wood basic density increased from narrower to wider planting spacings. The wood basic densities in planting spacings of 9 m² (0.517 g cm-3) and 12 m² (0.529 g cm-3) were 16.9 and 19.4% higher compared to the lowest planting spacing of 4.5 m2 (< 0.500 g cm-3). Forking reduced wood density by almost 7% and promoted a wider variation within the stem. Forked stems decreased basic density towards the base-top direction. The findings suggested that, 87-months-old wood of T. vulgaris is suitable for energy purposes, and recommended for the establishment of homogeneous plantations in Brazilian Amazonia.","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":"49016415","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

STAND STRUCTURE AND PRODUCTIVITY OF THE FIREFLY RIVERINE MANGROVE HABITAT AT THREE RIVERS IN PENINSULAR MALAYSIA 马来西亚半岛三条河流萤火虫河岸红树林栖息地的林分结构和生产力

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.114

SR Nur-Fatehah, I. Nur-Shafikah, K. Shamsul, WA Wan-Juliana, Norela Sulaiman, MH Shahril, AD Nurul-Darsani

{"title":"STAND STRUCTURE AND PRODUCTIVITY OF THE FIREFLY RIVERINE MANGROVE HABITAT AT THREE RIVERS IN PENINSULAR MALAYSIA","authors":"SR Nur-Fatehah, I. Nur-Shafikah, K. Shamsul, WA Wan-Juliana, Norela Sulaiman, MH Shahril, AD Nurul-Darsani","doi":"10.26525/jtfs2022.34.1.114","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.114","url":null,"abstract":"Studies on floristic composition, forest structure and tree diversity are important to determine the pattern of stand structure, current status and floristic variation of firefly riverine mangrove habitats in Peninsular Malaysia. Thus, this study was conducted in three rivers, namely Sungai Chukai, Terengganu, Sungai Rembau-Linggi, Negeri Sembilan and Sungai Sepetang, Taiping, Perak. A total of 647,362 and 514 tree stands measuring 1 cm diameter and above were enumerated in 0.5 ha plots at the three sites, respectively. A total of 40 species were recorded in Sungai Chukai, 17 species in Sungai Rembau-Linggi and 14 species in Sungai Sepetang. The 0.5, 0.35 and 0.40 ha of each study site, respectively, were capable of capturing all the species in the mangrove forest. Rhizophoraceae family was found to have the highest density and basal area in all the study sites. The highest species density for Sungai Chukai, Sungai Rembau-Linggi and Sungai Sepetang was R. apiculata with a density of 262 ind ha-1, 120 ind ha-1 and 516 ind ha-1, respectively. The major contributor of total basal area at Sungai Chukai, Sungai Rembau-Linggi and Sungai Sepetang were X. granatum (5.5583 m2 ha-1) and R. apiculata with 10.6833 m2 ha-1 and 11.7491 m2 ha-1, respectively. Diversity and species richness were higher at Sungai Chukai (H’= 2.82, R’= 6.03) compared to Sungai Rembau-Linggi (H’=2.09, R’= 2.72) and Sungai Sepetang (H’=1.43, R’= 2.08). The highest total biomass of mangrove forest was at Sungai Rembau-Linggi with 321.21 t ha-1 followed by Sungai Sepetang (247.41 t ha-1) and Sungai Chukai (210.36 t ha-1). These results indicated that the current status of community structure and vegetation varied among the rivers. The study can act as a guideline in the management plan of firefly habitats, which also affect firefly distribution along the three rivers in Peninsular Malaysia.","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":"47530876","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

PRESERVATIVE TREATMENT OF BAMBOO CULM FOR PRODUCING GREEN COLOUR AND ENHANCING FUNGAL DURABILITY 竹秆的防腐处理以产生绿色并提高真菌的耐久性

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2022-01-26 DOI: 10.26525/jtfs2022.34.1.83

JJ Oh, J. Ra, Ghahyun J. Kim

{"title":"PRESERVATIVE TREATMENT OF BAMBOO CULM FOR PRODUCING GREEN COLOUR AND ENHANCING FUNGAL DURABILITY","authors":"JJ Oh, J. Ra, Ghahyun J. Kim","doi":"10.26525/jtfs2022.34.1.83","DOIUrl":"https://doi.org/10.26525/jtfs2022.34.1.83","url":null,"abstract":"This research was performed to investigate the feasibility of using copper-based wood preservative treatment for producing green colour on the bamboo surface and enhancing the fungal decay resistance of treated bamboo. Preliminary outdoor weathering tests were carried out to evaluate the green colour fastness of treated bamboo culms. In addition, fixation and leaching tests were also conducted to evaluate the safety of preservative-treated bamboo. A two-step treatment process was recommended to enhance bamboo green colour production, fungal decay resistance, production rate of treated bamboo and prevent sludge formation in treatment solution. In the treatment process, the bamboo was pressure-treated until refusal point with 4% chromated copper arsenate-3 to achieve required preservative retention and dipped into 4% chromated copper arsenate-3 for 2 days to produce green colour on the bamboo surface. The chromated copper arsenate-treated bamboo samples had outstanding colour fastness and mildew resistance after 24 months of outdoor weathering. The fixation and leaching tests demonstrated that the total amount of preservative components leached from the chromated copper arsenate-treated bamboo samples was high to raise safety issues and caused environmental problem during the use of treated bamboo in the field.","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":"47091958","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

MICROPROPAGATION OF NEPENTHES HYBRID (N. VIKING × N. MIRANDA) USING A TEMPORARY IMMERSION BIOREACTOR SYSTEM, SETISTM 利用SETISTM临时浸没生物反应器系统进行猪笼草杂交种（维金猪笼草×米兰达猪笼草）的微繁殖

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2021-10-11 DOI: 10.26525/jtfs2021.33.4.494

AR Siti-Suhaila, M. Norwati

引用次数: 2

DEVELOPMENT AND CHARACTERISATION OF EST-SSR MARKERS FOR GENETIC ANALYSIS OF CASUARINA SPECIES 木麻黄品种EST-SSR遗传分析标记的建立与鉴定

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2021-10-11 DOI: 10.26525/jtfs2021.33.4.425

Z. Li, Y. Zhang, P. Hu, C. Zhong, Yc Wei, JX Meng, Y. Wang, D. Bush

引用次数: 0

METAGENOMIC INSIGHTS ON SOIL MICROBIOME BIODIVERSITY FROM AN ERODING COASTLINE OF TANJUNG PIAI, JOHOR STATE PARK, MALAYSIA 马来西亚柔佛州丹绒比艾海岸侵蚀土壤微生物生物多样性的宏基因组研究

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2021-10-11 DOI: 10.26525/jtfs2021.33.4.414

V. Jeyanny, A. Nur-Nabilah, B. Norlia, G. Krishnasamy, SL Lee, NR Singh, Z. Muhammad- Amiruddin

引用次数: 0

ASSESSING WIND DAMAGE RISK IN COMPLEX TERRAIN USING AN AERODYNAMIC MODEL IN ACACIA HYBRID PLANTATIONS IN QUANG TRI, VIETNAM 利用空气动力学模型评估越南广治金合欢杂交人工林复杂地形风害风险

IF 0.9 4区农林科学

Journal of Tropical Forest Science Pub Date : 2021-10-11 DOI: 10.26525/jtfs2021.33.4.501

N. Minh, K. Koyano, H. Mizunaga

引用次数: 0