Learning from theActivities of theWoodmiles Forum
Takashi Fujiwara, Yasuyuki Takiguchi,(The Woodmeils Forum )Hidetomo Shiraishi(Kyoto Prefecture Government)
Shuji Souma(Shimokawa Town Furusato Promotion Corporation)
Osamu Matsushita(Matsusita Lifestyle Institute)Contents
 Establishment of the Woodmiles Forumand its background Activities of the Woodmiles Forum Houses built with timber harvested fromnearby forests and the woodmiles report Conclusion

1

Contents
 Establishment of the Wood miles Forumand its background Activities of the Woodmiles Forum Houses built with timber harvested fromnearby forests and the woodmiles report Conclusion

Timber importation of major
importation countries by distancefrom origin
Japanfrom distant countries
from midle countries
from near countries

USA

Germany

million m3
020406080

Japan consumes wood from distant forest.
4Timber importation of major
importation countries by distancefrom origin
Japanfrom distant countries
from midle countries
from near countries

USA

Germany

million m3
020406080

Japan consumes wood from distant forest.
5

Comparison of woodmileage ofimported timber

400300200
1000384
8452

Japan

1860

12USAGermany

Woodmileage
Importaion Volume

Woodmileage of Japan is four times
larger than that of USA

6

Energy consumption and CO2
discharge in production process ofconstruction materials
CO280,900kg
CO219,600kg

CO2103kg

CO255kg
rrdr ele
bebe of carbon
m fromTheimquantity
theer
etod boa emitteduer
pmtoidnct d t ie
S miPan rie n drprocess
yw icle of timber
on fur smaller
production
isluwlC
P rt
Aaw ir d Sa ilnSthana thatk of otherPa construction materials.

7CO2 discharged on transportationand production process
227250177

200150
100

160

111

1037155

50

Source:The WoodmilesForum(2004)

oro m t ait
from N on̲o̲So r th ̲̲̲ ̲u t A ̲̲̲he me ̲ea r ic
fr st aom Asfr fr o R u i aom m ssi
Prao c N e w Eu r
Sa e
opw ss Z e e
S a n l i n g al awn u m ̲̲̲ n d
̲lu b e r ̲̲̲ ̲mab e ir ̲̲ ̲̲rdk i ri elnddried0Tr

franspTransportation of timber through longdistances has more environmental load
than the production process of the timber has.
8Establishment of the WoodmilesForum Establishment

June, 2003
 The purpose

to develop and disseminate indexes
concerning the distances between the places
at which timber is harvested and the places atwhich it is consumed (i.e., woodmiles).
(Article 2 of the Bylaws)
9Contents
 Establishment of the Wood miles Forumand its background Activities of the Woodmiles Forum Houses built with timber harvested fromnearby forests and the woodmiles report Conclusion

Establishment of the WoodmilesForum The activities of the Forum(Article 3 of the Bylaws)
Developing indexes and tools related towoodmiles
Disseminating woodmiles and networking forwoodmiles
Collecting related information and conducting
research

11

Establishment of the Woodmiles
Forum The activities of the Forum(Article 3 of the Bylaws)
Developing indexes and tools related towoodmiles
 Woodmileage(WM) Woodmileage CO2 (WMCO2)
 Woodmileage L (L = linear) (BWML) Logistics Stops Knowledge Level (LSNL)

12

Establishment of the Woodmiles
Forum The activities of the Forum(Article 3 of the Bylaws)
Developing indexes and tools related towoodmiles
Disseminating woodmiles and networking
for woodmiles
Collecting related information and conducting
research

13

Large Scale Wooden Frame
Domes in Japan

Izumo Dome

Izumo Dome
Shimane Pref.
1992

Odate Jyukai Dome
Odate Jukai Dome, Akita Pref.
1997

Konohana Dome

Konohana Dome
Miyazaki Pref.
2004

Production and Transportation
Process of Timber Used for theDomes
Izumo Dome Odate Jyuaki D.
Harvest site
Bend, OR.
Y. Riv. B. AP
Lam.millOR.
NP..
AP.
Building site
Izumo
Odate
Total distance
9272km1531km 138km
3
CO2dis. per u. 246kg/ m
162 kg/m3
Timber Vol.
2,150 m3
4,273 m3
19,934
3,685
Woodmileage
3‘000 km m‘000 km m3
WMCO2529ton
718tonKonohana D.
M.Riv. B.MP.
ditto
Miyazaki
133km
27km/ m3
1,381 m3
453‘000 km m3
37ton

1115

1200
1000

CO2 discharged in
actualtransport
process

737

800
529 529

600

340

400
200

58123

37

370
Izumo Dome

Odate Jyukai DomeIn case imported
materials are used.

Kinohana Dome

Incaselocally
harvestedandprocessedmaterials are used.

Result of an estimate of the buildingWoodmileage CO2 from the three biggest
wooden frame domes in Japan

Result of the evaluation of WMCO2 ofthe Domes
Evaluation of WMCO2 ofton timber transportation process ofKonohana Dome
400
360
350
300
250

Konohana-dome
Miyazaki200

absorption
in 50 years
100with sugi forest
37
50 of same area
150

Simulation
if constructedwith imported
timber0with localKHドーム
woodContents
 Establishment of the Wood miles Forumand its background Activities of the Woodmiles Forum Houses built with timber harvested fromnearby forests and the woodmiles report Conclusion

The woodmiles indexes of thehouse built by S Housing KK.
Timber Volume

Subject ofthe report

Average house using
average timber

Woodmiles
Averagetransportation
distance of usedtimberWoodmileage
MAC of volumeand distanceComparison of CO2 emission in thetimber transportation process
between the house built by SHousing KK and an average house
S Housing
KK

Averagehouseusing
averagetimberDifference

Timber Volume m3

46.774446.77440.0000

Average transportation
distance km

183

6983

6800

CO2 Emission Kg

1131

5473

4342

How large is the reduction of 4342
A reduction
kg of carbon dioxide?
equivalenttotheamount ofCO2
absorbed by
310 cedartrees in ayearA
reductionequivalent
totheamount ofabout
4,342 onemeter
indiameterballoonfulsof CO2…….. theamount ofCO2
emitted byburning
1,888 litersof gasoline

Easy or difficult to understandResult of the questionnaire
Easy tounderstandNumber of balloons
Cedar trees
Litters of gasoline
Kyoto Protocol
Cool Earth

Difficult tounderstandContents
 Establishment of the Wood miles Forumand its background Activities of the Woodmiles Forum Houses built with timber harvested fromnearby forests and the woodmiles report Conclusion

Possibility of the woodmiles
Total LCA Processmaterial
Construction design

RunningWastemanagementtimbermetalprocessetc.
pro. Trans
Simple Figure.

Environmental Load
Eco-material Recyclable, Low impact
Traceability
from resource production, manufacturing,distributing,Possibility of the woodmiles
Total LCA Processmaterial
Construction design

timbermetal

Fair woodpro.
Trans etc.
Campaign

process.
RunningWastemanagement

Possibility of the woodmiles
Total LCA Process

Construction

RunningWastemanagement

It is important touse the indexes
material
CASBEE collaborativelywith Systemother for(Comprehensive
timber Assessment
metaldesignprocess
in theBuilding Environmentalindexes
Efficiency)etc.
methodofgreen building
rating system
in Japanpro. Trans
comprehensive.
evaluation
Definition of “locally producedtimber”
in the CASBEE manualwas established based on the
proposal by the Woodmiles ForumThank you for yourkind attention!
Join in the Woodmiles Forum
Contact:
FUJIWARA, Takashi
info@woodmlies.net
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