TropicsPub Date : 2025-01-01DOI: 10.3759/tropics.ms24-04
Issei Sato, Tomy Listyanto, Ari Susanti, Chihiro Kayo
{"title":"Greenhouse gas emissions reduction potential of biomass power generation in Japan using empty fruit bunch pellets from Indonesia","authors":"Issei Sato, Tomy Listyanto, Ari Susanti, Chihiro Kayo","doi":"10.3759/tropics.ms24-04","DOIUrl":"https://doi.org/10.3759/tropics.ms24-04","url":null,"abstract":"This study evaluated the greenhouse gas (GHG) emissions reduction potential of utilizing empty fruit bunch (EFB) pellets from Indonesia as a power generation fuel in Japan. EFB is commonly processed through mulching or combustion; thus, these methods were used as the reference scenarios to compare emissions with EFB pellet utilization. Additionally, we assessed whether EFB pellets could outperform coal-fired and liquid natural gas (LNG) combined cycle power generation in terms of GHG emissions reduction. The life-cycle GHG emissions for EFB pellet utilization in Japan were calculated at 285 kg-CO2eq per metric ton of EFB (at 60 % moisture content, wet basis), surpassing the reference scenario by 278−279 kg-CO2eq. Compared to coal-fired power generation, EFB pellet utilization achieved a 33 % GHG emissions reduction, but emissions exceeded those of LNG combined cycle generation. The primary emissions source was biogas derived CH4 released during wastewater treatment in pellet production. A sensitivity analysis, considering biogas treatment rates and power generation efficiency, demonstrated that EFB pellet use could reduce GHG emissions relative to LNG combined cycle generation under specific conditions. These include operation in large-scale power plants with a generation efficiency of at least 40 % and a biogas reduction rate of 49 %. The findings suggest that EFB pellet utilization in Japan could contribute to GHG emissions reduction if a stable supply system is established to support large-scale power plants. Successful implementation requires developing incentives for biogas treatment at pellet mills and accurately assessing EFB availability to prevent competition with existing uses.","PeriodicalId":51890,"journal":{"name":"Tropics","volume":"34 1","pages":"11-22"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.jstage.jst.go.jp/article/tropics/34/1/34_MS24-04/_pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147920045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
TropicsPub Date : 2023-12-01DOI: 10.3759/tropics.ms23-1
Rico Hachisuka, Kaho Ishikawa, S. Ugawa
{"title":"Influence of the light environment, cutting size, and existence of roots on the survival and regrowth of an invasive species, Epipremnum aureum","authors":"Rico Hachisuka, Kaho Ishikawa, S. Ugawa","doi":"10.3759/tropics.ms23-1","DOIUrl":"https://doi.org/10.3759/tropics.ms23-1","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44032006","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}
TropicsPub Date : 2023-06-01DOI: 10.3759/tropics.ms22-07
B. Diway, Ling Chea Yiing, Mohd Effendi bin Wasli, Y. Takeuchi
{"title":"Forest structure and recovery in selectively logged forests in Sarawak, Malaysia","authors":"B. Diway, Ling Chea Yiing, Mohd Effendi bin Wasli, Y. Takeuchi","doi":"10.3759/tropics.ms22-07","DOIUrl":"https://doi.org/10.3759/tropics.ms22-07","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44721901","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}
TropicsPub Date : 2023-06-01DOI: 10.3759/tropics.ms22-05
Taiki Mori, D. Staporn, Ponthep Meunpong, Warawich Suebsai, Khitja Boonsri, C. Wachrinrat
{"title":"Effects of phosphorus addition on leaf litter decomposition in two tropical tree plantations in Thailand","authors":"Taiki Mori, D. Staporn, Ponthep Meunpong, Warawich Suebsai, Khitja Boonsri, C. Wachrinrat","doi":"10.3759/tropics.ms22-05","DOIUrl":"https://doi.org/10.3759/tropics.ms22-05","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49458467","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}
TropicsPub Date : 2023-03-01DOI: 10.3759/tropics.sint03
W. C. Chew, T. Okuda, Su Myat Mon, M. S. N. Mandal, Chihomi Shigematsu, Thant Shin, A. M. Thant
{"title":"A spatial and temporal analysis of commercialized NTFP production in four administrative regions in Myanmar","authors":"W. C. Chew, T. Okuda, Su Myat Mon, M. S. N. Mandal, Chihomi Shigematsu, Thant Shin, A. M. Thant","doi":"10.3759/tropics.sint03","DOIUrl":"https://doi.org/10.3759/tropics.sint03","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44722422","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}
TropicsPub Date : 2023-03-01DOI: 10.3759/tropics.sint06
H. Hashiguchi, M. Toda, Thant Shin, Kyi Lay Cho, M. Hiratsuka
{"title":"Difference in dependence on forest resources between first generation migrants and their descendants in southern Shan State, Myanmar","authors":"H. Hashiguchi, M. Toda, Thant Shin, Kyi Lay Cho, M. Hiratsuka","doi":"10.3759/tropics.sint06","DOIUrl":"https://doi.org/10.3759/tropics.sint06","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45083123","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}
TropicsPub Date : 2023-03-01DOI: 10.3759/tropics.sint05
M. Ishizuka, M. Toda, Junki Kuramoto, Yelwin Aun, Khin Pa Pa Shr, Thant Shin
{"title":"Domestic and export markets for Myanmar tiger grass brooms: A case study of Taunggya Village, Shan State","authors":"M. Ishizuka, M. Toda, Junki Kuramoto, Yelwin Aun, Khin Pa Pa Shr, Thant Shin","doi":"10.3759/tropics.sint05","DOIUrl":"https://doi.org/10.3759/tropics.sint05","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42316742","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}
TropicsPub Date : 2023-03-01DOI: 10.3759/tropics.sint02
Su Myat Mon, T. Okuda, Toshihiro Yamada, A. M. Thant, Thant Shin, W. C. Chew, M. S. N. Mandal, Chihomi Shigematsu
{"title":"Can commercialization of non-timber forest product (NTFP) reduce deforestation in Myanmar?","authors":"Su Myat Mon, T. Okuda, Toshihiro Yamada, A. M. Thant, Thant Shin, W. C. Chew, M. S. N. Mandal, Chihomi Shigematsu","doi":"10.3759/tropics.sint02","DOIUrl":"https://doi.org/10.3759/tropics.sint02","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46831006","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}
TropicsPub Date : 2023-03-01DOI: 10.3759/tropics.sint04
M. S. N. Mandal, T. Okuda, Su Myat Mon, W. C. Chew, Chihomi Shigematsu, T. Hosaka
{"title":"Habitat suitability mapping for a high-value non-timber forest product: A case study of Rauvolfia serpentina","authors":"M. S. N. Mandal, T. Okuda, Su Myat Mon, W. C. Chew, Chihomi Shigematsu, T. Hosaka","doi":"10.3759/tropics.sint04","DOIUrl":"https://doi.org/10.3759/tropics.sint04","url":null,"abstract":"","PeriodicalId":51890,"journal":{"name":"Tropics","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70010634","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}