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 Institute of Low Temperature Science (ILTS), Hokkaido University
 Last updated : May 8th, 2018

  Welcome to the English page of
Cold Region Plant Ecology and Physiology Group

        (as an ILTS lab)
 and
Plant Ecology Lab
     
(as a cource in the Graduate School of Environmental Science)
                                

 Now Accepting New Graduate Students !!!
  
Graduate students in our lab will also belong to:
  
the Plant Ecology Course, the Division of Biosphere Science, 
  the Graduate School of Environmental Science, Hokkaido Univ.


  For prospective graduate students, contact directly to a teaching staff.



Researches・・・
 Plant communities in the boreal region are likely to be most affected by global environmental change. However, there are still many unsolved questions regarding plant communities in the boreal region. Our main interest is on the
establishment, regeneration and maintenance processes of herbaceous and forest communities in the boreal region, and their interaction with the physical environment.
  Specific research topics are as listed below.


 Field and Lab researches in plant ecology
  1) Growth and competition of individual plants and modeling
  2) Structure and dynamics of tree crown and forest canopy
  3) Physiological responses of plants to cold and dry environmental stresses

  4) Reproductive strategy of perennial plants


 Fig. 1. Branch tips of Akaezomatsu spruce (Picea glehnii) in the canopy.
There are something that cannot be understood without accessing to tree crowns. Growth and death of branches are investigated to understand the crown and canopy dynamics of this evergreen conifer species. Recent studies include mRNA measurements of current-year shoots in order to access physiological mechanisms of branch growth and death. This reserach site is located in the Sapporo campus of Hokkaido University.

Research in the laboratory
 1) Plant growth experiments using a biotron
 2) Physiological and biochemical analysis of photosynthesis
 3) Development of mathematical models for scientific synthesis

Fig. 3. Laboratory studies in the lab
The abovementioned lab studies are conducted in the building of the Institute of Low Temperature Science.


Field study sites
 Forests and mountain meadows in Hokkaido and north-central Europe


Fig. 3. Sub-boreal forest in Taisetsu, Hokkaido (Betula ermanii , Abies sachalinensis, Picea jezoensis,etc.). By comparing photosynthetic mechanisms, we hope to elucidate how broad-leaved trees and conifers can coexist in the boreal region.

 Through collaborative research, we aim to synthesize the interaction between biological and physical processes.

  1. Photosynthetic and phenological responses to environmental stresses, such as low temperature, desiccation, photo-inhibition.
  2. Interactions among forest regeneration, growth, genetic make-up, energy and water cycle, soil development, glacial dynamics, and development of theoretical models to synthesize these processes that define the boreal region.

 Lab Members

  <Teachng staff at ILTS *>
    
* See Member page for the teaching staff of another lab
HARA, Toshihiko (Professor)
 Professor Hara's research focuses on incorporating size,genetic, and spatial structure of populations into theoretical models ofplant growth and competition, regeneration and maintenance processes of plant communities, and plant species coexistence. Research sites includeplant communities of the boreal region, such as forests, annual and perennial herb communities. He aims to elucidate the interaction between biological and physical processes by synthesizing plant community establishment, regeneration and maintenance with global climate and environmental change.
 // Tel. +81-11-706-5455

SUMIDA, Akihiro (Associate Professor)
 The crown and canopy structure of trees and forests are a key to understand how trees survive under biological and physical environment. Dr, Sumida's research focuses on leaf- to crown-scale measurements to elucidate the dynamics of forest ecosystms from the perspective of spatial structure formation.

 // Tel. +81-11-706-5507

ONO, Kiyomi (Assistant Professor)
 // Tel. +81-11-706-5469

HASEGAWA, Shigeaki (Assistant Professor)
  // Tel. +81-11-706-7660


TABATA, Azusa
(PD Fellow)
 

WAKATSUCHI, Moe (Lab Secretary)
 
// Tel. +81-11-706-5455

Current students
 LI, Zhou (Master student)
 


Former post-docs (2003-)

 BAE, Jeong-Jin
 KATO, Kyoko
 ISHII, Hiroaki
 MOHAREKAR, Shubhangi
 MOHAREKAR, Sanjay
 OSHIMA, Kazuhiro
 TODA, Motomu
 UKAJI, Norifumi
 YAMADA, Masahito

Former students (2003-)
 TAKAYAMA, Yukari (as Master student)
 YAMAGUCHI, Takahiro (as Master student)
 OKUBO, Kenzo (as Master student)
 KUJIRAOKA, Keisuke (as Master student)
 IIMURA, Kayo (as Master student)
 TSUDA, Hajime (as Master student)
 FUJIBE, Takumi (as Master student)
 HASHIGUCHI, Megumi (as Master student)
 ISHIMORI, Waka (as Master student)
 BONTEMPO E SILVA, Edgard Alves (Ph.D student)
 KONG, Bihe (Ph.D student)
 CHEN, Lei (Ph.D student)

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 Hokkaido University
 
Institute of Low Temperature Science