April 2025 - July 2025

April 14

Masako Dannoura "Plan of my research 2025"

Daniel Epron "Annual research plan"

Minori Tokito "Research plan in 2025"

April 21

Shitephen Wang "A slight Transformer-U-Net based AI system for versatile image segmentation in plant cells and organs & research plan from 2025 to 2030"

Takumi Mochidome “Research plan 2025: Try to evaluate anoxic condition and substrate availability” 

Makoto Nagasawa  "Why is so much CH₄ emitted from Sugi trunks with bark stripping by bears? -Research plan in 2025-" 

　May 12

  Yuta Nishatani "What is Urushi? Basic Knowledge and Introduction to Research Papers"

  Mizuho Morita "Comparing of phloem transport velocity in several species and research plan in 2025"

  Sumonta Paul "Soil methane flux and vertical profiles of methane concentration and microbes along a topographical gradient in a cool temperate forest"

   May 19

  Yamato Sawada"Carbon costs of reproduction in fern species and the impacts on resource allocation to leaves"

  Ryo ogasawara "Evaluation method of Bamboo expansion using LiDAR, UAV, and SfM-MVS"

  Rifat Rahaman "Variation of stem CO2 flux in the sub tropical mangrove forest"

   May 26
  Keisuke Yuasa "Spatial difference of Soil CO2 flux among slope position – focusing on root system"

  Keiko Kobayashi "Relationships between stable carbon isotope ratios in annual rings and environmental factors"

  June 2
  

  Yuma Sakaue"Research plan 2025-26 -Diffences in growing strategy between liana and tree species in various climate-"

  Yudai Sasaki "My interest and research plan in 2025"

  Yuta Ohtake "2025 Research Plan -Upscaling Stem Methane Emission to Forest Level-"

 June 9
  Kanta Nakada "My Research Plan~Distribution of phloem within individual trees"

Ayumi Murakawa "Research Plan in 2025 ~Should Urushi be fermented?~

Haruna Shimomai "Development of the method to determine the type of sugar loading"

 June 16

Takumi Mochidome "Optimization of pretreatment for analysis of substrate availability of CH4 production in tree trunks using gas chromatography"

Makoto Nagasawa "Methane oxidation by microbes living in Sugi trunks"

Osuke Maenaga"My Research Plan : Spatiotemporal effects of broadleaf forestry disturbance on Genus Platycerus stag-beetles (Coreoptera, Lucanidae) associated with primary forests"

 June 23

 Sumonta Paul "Topographic control on soil methane oxidation in cool temperature upland forest"

Keisuke Yuasa "Spatial difference of Soil CO2 flux among slope position"

 June 30

Yamato Sawada "Leaf phenology of ferns and photosynthetic capacity of overwintering leaves"

Yuta Nishatani "2025 Research Plan: Application of 13C Pulse Labeling Method to Urushi"

Mizuho Morita "Review of Johannes Liesche’s research"

 July 7

Rifat Rahaman "Variation of CO2 flux from tree stems in a subtropical mangrove forest "

Ryo Ogasawara "Mobile LiDAR Survey and Point Cloud Analysis in Abandoned Bamboo Forests"

 July 14

Keiko Kobayashi "What factors differentiate iWUE of larches?" 

 July 17

Yuma Sakaue　"Explanation of Grime's CSR ecological triangle and improved methodology"

Haruna Shimomai　"Development of the method to determine the type of sugar loading"

Yuta Otake "Making Multiplexer for Stem Methane Flux Measurement"

 July 28

Kanta Nakada "A Review of Previous Literature ~Tree allometry and scaling of the phloem~"

Yudai Sasaki "Concrete research plan in 2025 and preliminary research"

Ayumi Murakawa"Examining the role of microbes in urushi “fermentation” through carbon dioxide monitoring"

Osuke Maenaga"My research plan in detail and result"

April 2024 - March 2025

April 1, 2024

Self-introduction

April 8, 2024

Masako Dannoura, "Plan of my research in 2024"

Daniel Epron, "Annual research plan"

Minori Tokito, "Research plan in 2024"

April 22, 2024

Yuuta Nishatani, "2024 Urushi Research Plan for My Master's Thesis "

Yamato Sawada, "My research plan in 2024 "

May 13, 2024

Shitephen Wang, “Using carbon stable isotope pulse labelling and mathematic programming methods to uncover carbon transport in mature bamboo of Phyllostachys edulis & research plans in 2024”

Rifat Rahaman, “Research plan of master thesis”

May 20, 2024

Sumonta Paul, "Topography and vegetation-based estimates of soil methane flux in a complex forested watershed ",

Takumi Mochidome, "Clarifying the origin of CH4 emission hot spots in upper tree trunks: Local genesis or axial transport ",

Nathan Cousteur, "Spatiotemporal variability of methane fluxes from tree stems in an upland forest ",

Yuki Hashimoto (from Shinshu University), "Seasonal variation in fine root respiration coordinated by non-structural carbohydrates in subalpine forest"

May 27th

Kouji Desaki, "Relations between air temperature inside hollow and outside or trunk temperature, and plan in 2024",

Keiko Kobayashi, "Observe drought stress on trees caused by various factors ". 

June 3rd

Saya Murata, "Latest researches on mistletoe distribution using UAV in Japan and in Europe, and my plans for 2024 ",

Mizuho Morita, "Literature review and research plan -Modeling of phloem transport ",

Kanta Nakada, "Research on the relationship between environmental stress and changes in sieve plate structure ". 

June 10th

Keisuke Yuasa, "Temporal change of spatial variability of soil CO2 flux ",

Ryo Ogasawara, "Improvement in estimation of Bamboo forests’ expansion using UAV and SfM-MVS photogrammetry (About Graduation thesis and Research plan)  ",

Yuma Sakaue, "Water uptake and water use strategies of evergreen liana and tred species in seasonal dry tropical forest ".

June 17th 

Makoto Nagasawa, "Bark peeled trunks in C. japonica can emit significant amounts of methane",

Yamato Sawada, "Impact of reproduction on leaf phenology in fern species ".

June 24th

Takumi Mochidome, "Seeking the rule of the vertical pattern of trunk CH4 emission",

Sumonta Paul, "Scaling soil methane fluxes in a topographically complex forested landscape".

Yuta Nishatani, "My research plan in 2024: Estimating of the total amount of urushi resin refilled into resin canals by urushi tapping".

July 1st 

Saya Murata, "Identifying determinants of mistletoe distribution using regression models ",

Mizuho Morita, "Determination of loading type by sugar assay ".

July 8th 

Koji Desaki, "Difference among hollow air, atmospheric air and trunk temperature, and comparison among different seasons",

Keisuke Yuasa, "Limitation factor of soil respiration focusing on nitrogen",

Keiko Kobayashi, "Observe annual ring formation due to weather factors".

July 22nd  

Ryo Ogasawara, "The influence of bamboo bending in the evaluation of bamboo expansion",

Hredoy Rifat Rahaman, "Temporal variation of tree stem CO2 flux in the subtropical mangrove forest ",

Kanta Nakada, "Literature review and new research plan".

July 29th

Nathan Cousteur, "Methane production: influence of Heartwood condition",

Makoto Nagasawa, "The best way to estimate trunk surface area to upscale trunk methane emission per trunk",

Yuma Sakaue, "Hypothesized relationship between soil and root of Lianas in tropical dry forests",

Yan Xia, "H218O & D2O isotope labeling of Chamaecyparis obtusa". 

October 7, 2024

　Yuuta Nisyatani, "Research progress report: Estimation of the amount of refilled urushi resin" 

　Saya Murata, "Distribution characteristics of misletoe, and research plan to understand the impact of mistletoe infections" 

October 21, 2024

　Kouji Desaki, "Difference among hollow air, atmospheric air, and trunk temperature and its factor in spring" "

　Yuma Sakaue, "Water strategy of evergreen liana and tree species and progress report "

October 25, 2024

Joint Seminar with Forest Hydrology Seminar  "Room : W322"

Sumonta Kumar Paul, "Scaling soil methane flux from a topographically complex forested landscape"

Susumu Tatsuno, "Effect of atmospheric methane concentration on methane oxidation capacity of surface soils in temperate forests"

Makoto Nagasawa, "Bark-peeled  C. japonica trunks emit considerable amounts of CH4 in a temperate upland forest."

Haruki Watanabe, "Microtopography-related variability of soil CH4 flux in a temperate forest"

Takumi Mochidome, "Trial of Using a CH4 Transport Model to Develop an Efficient Sampling Strategy for Field Investigations on Trunk CH4 Emissions"

October 28, 2024

　Keisuke Yuasa, "The difference of root respiration among slope position and species characteristics"

　Keiko Kobayashi, "Does the impact of weather on trees vary with terrain"

November 11, 2024

Yamato Sawada, "Progress Report : fertile and sterile leaf phenology and chlorophyll fluorescent of ferns. "

Mizuho Morita, "The velocity of phloem transport measured by 13C pulse labelling "

　　Kanta Nakada, "Changes in phloem sap quantity before and after branching "

November 18, 2024

　　Shitephen WANG, "Triple (13C, 18O, 2H) isotope conceptual model in tree rings & annual research results in 2024."

　　Dr. Caroline Plain (University of Lorraine, France),"does the health status of trees (healthy, dieback or dead) influence the methane fluxes emitted by tree stems in well aerated soils?"

November 25, 2024

　　Rifat Rahaman, "Temporal variation of tree stem CO2 flux in the subtropical mangrove forest

(last summer preliminary result).",

December 2, 2024

　　Yuta Nishatani,  "Preliminary results of this year's urushi investigation",

　　Koji Desaki, "Thermal environment in some species of tree hollow in high temperature phase"

December 9, 2024

　　Makoto Nagasawa, "The Effect of Bear Bark-stripping on Trunk CH4 Flux"

December 16, 2024

Yamato Sawada,  "Application of chlorophyl fluorescence in photosynthesis research",

Mizuho Morita, "The velocity of phloem transport in Magnolia compared to other species"

Kanta Nakada, "Effects of Branches in Phloem Anatomy of Kobushi"

December 20(Friday), 2024 "Joint seminar with Forest Ecology Lab"

January 6, 2025

Keiko Kobayashi, "Does the impact of weather on trees vary with terrain"

Takumi Mochidome, "Trial of Using a CH4 Transport Model to Develop an Efficient Sampling Strategy for Field Investigations on Trunk CH4 Emissions"

January 15, 2025

　Yuma Sakaue, "Water strategy of evergreen liana and tree species and progress report "

Rifat Rahaman, "Temporal variation of tree stem CO2 flux in the subtropical mangrove forest

   Keisuke Yuasa, "Temporal change of spatial variability of soil CO2 flux ",

   Ryo Ogasawara, "Improvement in estimation of Bamboo forests’ expansion using UAV and SfM-MVS photogrammetry

April 2023 - March 2024

April 10, 2023

Self introduction

April 17, 2023

Masako Dannoura, "Research plan in 2023 "

Daniel Epron, "Research plan in 2023 "

Minori Tokito, "Previous research and current work "

April 24, 2023

Takumi Mochidome (M2), "CH4 emission from an upper part of tree trunk"

Shitephen Wang (Postdoc.), " Impact on carbon sequestration after logging and abandonment in Phyllostachys edulis forests and further research plans"

May 8, 2023

Sumonta Kumar Paul (D1), "Spatial patterns of soil CH4 flux in a mountain forested watershed"

May 15, 2023

Yumi Kihara(D3), "Research introduction and plan ー Fine root dynamics of mangrove species"

Saya Murata(M1), "Seasonal changes in photosynthetic capacity and nitrogen dynamics in Japanese mistletoe"

Yuuta Nishatani(M1), "Overview of urushi and urushi tapping and My research plan for the two years of the master’s course"

May 22, 2023

Yamato Sawada(M2), "Variation in NSC Content and Biomass Distribution in Fern Species"

Kouji Desaki(M1), "Research plan for master's course 〜 Relationship between evapotranspiration and formation of cumulonimbus cloud 〜"

May 29, 2023

Bleuenn Suard, "The evolution of water use efficiency over the past 20 years"

Mizuho Morita(B4), "The difference of potential CH4 consumption of bark between individuals and within individuals"

Makoto Nagasawa(B4), "The Relationship between Phloem Transport and External Condition"

June 5, 2023

Ryo Ogasawara(B4), "The expansion of bamboo forests and their environmental conditions"

Keisuke Yuasa(B4), "Spatial variability of soil CO2 flux in mountain forest"

June 12, 2023

Zinnatul Bassar(D3), "Biomass carrying capacity of mangrove tree species in a tropical region in Japan."

Yumi Kihara(D3), "Estimation of fine root respiration of two mangrove species"

June 19, 2023

Saya Murata(M1), "Nitrogen absorption and nitrogen use efficiency of Viscum album var. coloratum"

June 26, 2023

Sumonta Kumar Paul (D1), "Spatial pattern of soil CH4 flux from a temperate mountain watershed"

Lucie Bivaud, "Dynamics of oxygen isotopic composition (δ18O) in leaf and trunk water of Hinoki cypress during water uptake and transpiration"

Takumi Mochidome (M2), "Literature review: Processes of CH4 emission from tree trunks"

July 3, 2023

Yamato Sawada(M2), "Literature review :

 Non-structural carbohydrate levels of three co-occurring understory plants and their responses to forest thinning by gap creation in a dense pine plantation"

Yuta Nishatani(M1), "The process of filling the resin canal with the urushi resin after the resin exude by urushi tapping"

July 10, 2023

A.T.M. Zinnatul Bassar(D3), "Above and belowground biomass and net primary productivity in two subtropical mangrove forests in Japan"

Ryo Ogasawara(B4), "Expansion of bamboo forest and its evaluation method"

July 24, 2023

Kouji Desaki(M1), "Air temperature change in and out of tree hollow and next plan"

Mizuho Morita(B4), "My research plan & a paper about phloem loading and plant evolution"

Makoto Nagasawa(B4), "The intraindividual and intraspecific variation in wood CH₄ consumption and stem CH₄ emissions"

Keisuke Yuasa(B4), "Spatial variability of soil CO2 flux in mountain forest"

October 2, 2023

Yuuta Nishatani(M1), "Fermentation and effect of bacteria on urushi resin"

Takumi Mochidome(M2), "Research plan: Comparison of vertical variations in CH4 emissions and production along the stem"

October 16 , 2023

Shitephen Wang (Postdoc.), "How long does young bamboo receive carbohydrates from the society of Moso bamboo (Phyllostachys edulis)?"

October 23, 2023

Yumi Kihara(D3), "Estimation of fine root dynamics and seasonal variation by using scanner method - analysis using ARATA"

Sumonta Kumar Paul(D1), "Soil methane flux from a cool temperate mountainous forest"

October 30, 2023

Yamato Sawada(M2), "variations in biomass allocation and NSC concentration by life form of fern species"

Saya Murata(M1), "Understanding the distribution of hemiparasitic mistletoe in temperate forests using aerial photography"

November 6 , 2023

Kouji Desaki(M1), "Comparison between inside hollow temperature and outside/trunk temperature"

Makoto Nagasawa(B4), "Radial variability in CH4 emissions from tree trunk in a cool temperate forest"

November  13 , 2023

Ryo OGASAWARA(B4), "A method to determine the spatial distribution and density of bamboo culms by analyzing UAV aerial imagery"

Mizuho MORITA(B4), "Relationship between sieve plate's type and phloem evolution"

November 20, 2023

Keisuke Yuasa(B4), "Relationship between soil CO2 flux and surrounding tree distance"

November 27, 2023

Sumonta Kumar Paul(D1), "Spatial patterns of soil methane flux in a cool temperate forest: vegetation and topographic control"

December 4,  2023

Yumi Kihara(D3), "Summary of Doctoral ResearchーCarbon dynamics of mangrove root"

Yuuta Nishatani(M1), "Is the seasonal variation in the amount of urushi resin exudation caused by temperature?"

Desember 11, 2023

Yamato Sawada(M2), "biomass allocation in fern species"

Kouji Desaki(M1), "The comparison of temperature between hollow air and outside air or trunk wood"

December 18, 2023

Rifat Rahaman Hredoy(M1), "Contribution of Fine Root in Biomass Carbon of the major mangrove species in the Sundarbans, Bangladesh"

Makoto Nagasawa(B4), "Why do CH₄ emissions from tree trunks in an upland forest vary radially?"

December 25, 2023

Takumi Mochidome(M2), "Modeling CH4 transport inside the tree trunk"

Mizuho Morita(B4), "Difference of sieve plate's type in Lauraceae and Fagaceae"

Keisuke Yuasa(B4), "Surrounding tree‘ｓ effect for soil CO2 flux"

January 15, 2024

Saya Murata(M1), "Identification and modeling of landscape factors and host tree characteristics affecting mistletoe distribution"

Ryo Ogasawara(B4), "Use of UAV and SfM-MVS Image Analysis for Evaluation of Bamboo Forest Expansion"

January 22, 2024

Takumi Mochidome(M2), "Processes behind intra-individual spatial variability of CH4 emission from tree trunk."

Makoto Nagasawa(B4), "Radial Differences in CH₄ Emissions from Tree Trunk in an Upland Forest."

Mizuho Morita(B4), "Sieve plate's types in Lauraceae and Fagaceae in terms of phylogeny"

January29, 2024

Keisuke Yuasa(B4), "Influence of landscape heterogeneity on spatial patterns of soil CO2 flux"

Yamato Sawada(M2), "シダ植物の生活型によるバイオマス分配とNSC濃度の違い"

Ryo Ogasawara(B4), "⽵林の拡⼤評価におけるUAVおよびSfM-MVSによる画像解析の活⽤"

April 2022 - March 2023

January 10, 2023

Bleuenn Suard (M1), " Presentation of the eddy covariance method. "

Julie Gouinguenet (M1), "Measurement of leaf gas exchanges on several oak species."

December 26, 2022

Erika Nishituji (B4), "How do bark characteristics and stem methane emission influence their potential methane oxidation capacity?"

Kouji Desaki (B4), "Relationships between the air temperature buffer effect of tree hollows and air-dried relative specific gravity or hollow shape"

December 19, 2022

Bassar ATM Zinnatul (D3), "Developing biomass allometric equations of Rhizophora stylosa and Bruguiera gymnorrhiza in Manko Wetland of Okinawa, Japan."

Saya Murata (B4), "Identification of carbon compounds obtained by Viscum album"

December 12, 2022

Sumonta Kumar Paul (D1), "Does Spatio-temporal pattern explain the soil CH4 flux in a temperate forest?"

December 5, 2022 

Yuuta Nishatani (B4), "Diurnal variation and its reason in the amount of Urushi resin exudation from the inner bark of Urushi"

Yumi Kihara (D3), "Introduction of a paper on environmental factors affecting mangrove growth and report on a new observation method"

November 28, 2022 

Saya Murata (B4), "Carbon and nitrogen transfer from host tree to Viscum album using the stable isotope pulse labelling techniques"

Takumi Mochidome (M1), "Does CH4 concentration at sapwood explain the spatial variation within a stem of stem CH4 emission?"

November 14, 2022 

Julie Gouinguenet (M1), "Mini urban forests: fad or real ecosystem service?"

Bleuenn Suard (M1), "tree ring isotopic composition and fluxes measured by eddy covariance to improve vegetation models."

November 7, 2022 

Erika Nishitsuji (B4), "The relationship among the methane consumption rate of bark, bark morphological traits  and stem methane emission"

Sumonta Kumar Paul (D1), "Literature review and preliminary research plan -Methane flux from forest soil."

Kouji Desaki (B4), "The buffer effect for air temperature in tree hollows and its possible cause"

October 31, 2022 

 Shitephen Wang (Postdoc.), "The process of carbohydrate transfer and carbon budget in *Phyllostachysedulis* forests– An equilibrium Monte Carlo approach for quantifying carbon allocation after 13CO2 labelling without closed systems"

October 24, 2022 

Bassar A.T.M. Zinnatul (D3), "Structure of the mangrove forest along Miyara river of Ishigaki, Okinawa of Japan and yearly research plan.”

Yuta Nisyatani (B4), "A method to correct the influence of moisture and resin canals on measurement of quantity of Urushi resin coming out of inner Bark"

October 17, 2022 

Yumi Kihara  (D3), "Doctoral dissertation concept and research plan for the second semesterーCarbon dynamics and respiratory activity of mangrove forest"

Takumi Mochidome  (M1), "Spatial pattern within a tree stem of CH4 flux and internal CH4 concentration"

Tomoko Tanabe  (Postdoc.), "When is the carbon used for apical and cambium growths absorbed by photosynthesis? A research plan"

October 3, 2022 

Self introduction ーWe have two new students from Franceー

July 11, 2022 

Erika Nishitsuji (B4), "Measurement of bark traits and methanotrophic activity in bark"

Koji Desaki (B4), "My detailed research plan: the speed of temperature change in tree hollows"

July 4, 2022 

Takumi Mochidome (M1), "A literature review -Tree Foliage is a Methane Sink in Upland Temperate Forests-"

Saya Murata (B4), "A global analysis of water and nitrogen relationships between mistletoes and their hosts: broad-scale tests of old and enduring hypothesis"

June 27, 2022 

Bassar A.T.M. Zinnatul (D2), "Overview of the structure of the mangrove along Miyara river of Ishigaki, Okinawa of Japan and future research plan"

Sumonta Kumar Paul  (M2), "Leaf and xylem traits of Mangrove Kandelia obovata in the Northern limit of its distribution"

Yuta Nisyatani (B4), "My investigation this year: how to clarify the variation of quantity and quality of Urushi resin"

June 20, 2022 

Yumi Kihara (D3), "Literature Review: Photosynthesis, respiration, and growth patterns of Rhizophora stylosa seedlings in relation to growth temperature., Y. Akaji et al. Trees(2019) 33: 1041-1049 "

June 13, 2022 

Tomoko Tanabe  (Postdoc.), "Where is the position have a large annual variation in radial increment along the root-stem-branch?"

June 6, 2022 

Rei Fujii  (D2), "Literature Review: Leaf out time correlates with wood anatomy across large geographic scales and within local communities", Savage, J.A., Kiecker, T., McMann, N., Park, D., Rothendler, M. and Mosher, K. (2022), New Phytol. https://doi.org/10.1111/nph.18041 

Koji Desaki (B4), "Two tentative plans of my research theme"

May 30, 2022 

Erika Nishitsuji (B4), "Introduction of my research and the progress "

Saya Murata (B4), "The host dependence on carbon and preference of host species for hemiparasite mistletoe ~introduction and research plan~ "

May 23, 2022 

Yuta Nisyatani (B4), "Introduction of my research of Urushi "

May 16, 2022 

Sumonta Kumar Paul  (M2), "Leaf and xylem traits of Kandelia obovata in the Northern limit of its distribution "

Takumi Mochidome (M1), "Mechanisms behind the stem CH4 emission: an introduction and a plan of my research "

May 9, 2022 

Guest speaker: Rempei Suwa (JIRCAS), "Study of mangrove in Okinawa, Philippines, and Indonesia, and Blue Carbon "

Bassar A.T.M. Zinnatul (D2), "Development of biomass allometric equations for R. stylosa and B. gymnorrhizha in Manko wetland of Japan. "

Yumi Kihara (D3), "Research introduction and plans: Carbon allocation to fine roots and its seasonal variation in mangrove forests"

April 25, 2022 

Shitephen Wang (Postdoc.), "Research introduction and further plans (if I have a future): Seasonal dynamics of carbon and nitrogen emission in forests"

Rei Fujii (D2), "Research Introduction and Progress. Phenolinkage within Individual Tree in Deciduous Broadleaved Species"

April 18, 2022 

Masako Dannoura, "Plan of my research in 2022"

Daniel Epron, "What about my on going and future research plan activities?"

April 11, 2022

Self introduction