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Exploring informal urban greenspace in Brisbane and Sapporo
Christoph RupprechtURP 2013 Gold Coast Seminar Series, Griffith University
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• What is informal greenspace?
• How did I study it?
• Exploring informal greenspace
• Flâneur – walking the citySource: Del Tredici
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How people describe informal greenspace
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What is informal greenspace?
• Not recognised or managed by owner as– recreational space– agricultural space– conservation space
• Previously modified• Spontaneous vegetation
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IGS TypologyBasic types: 1. Verge 2. Lot3. Gap4. Brownfield 5. Powerline 6. Railway7. Waterside8. Structural9. Microsite
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Study locationsBrisbane Sapporo
Founded 1824, city status 1902 1868, city status 1922
Population 1,07 mil. (2010) 1,3 mil. (2031) 1,9 mil. (2011) 1,8 mil. (2030)
Pop. density 770/km2 (peak >5,000/km2) 1,700/km2 (peak >8,000/km2)
Local parks 32m2 per person 12m2 per person
Source: Google Maps Source: Google Maps
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Data collection
1. Spatial, GIS and IGS attribute data• IGS proportion & type• Accessibility• Human use
2. Ecological data • vegetation structure • bird species occurrence
3. Social data: • Resident survey on IGS use, attitude
and urban nature attitude• central planning policy documents
(Sapporo Green Plan, Brisbane City Plan)
Source: Sapporo City
Source: Sapporo
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Sampling
IGS1km
10km
sampling site
50m
10m
bird point count location example on edge of site, chosen for max. field of sight
100500
10x10km grid with 121 sampling sites
City centre
% IGS cover
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Street verges: ecology
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Succession without high energy/labour maintenance
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Street verges: use
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Street verges: use & modification
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Gaps: ecology
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Gaps: use
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Lots: ecology
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Lots: use(able?) Source: Hayashi 1999
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Lots: use
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Railway: ecology
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Railway: use
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Railway: re-use
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Waterside: ecology
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Waterside: use
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IGS impressions & residents’ voices:Brisbane
“It’s REAL,
not FAKE
like a park”
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Feelings
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Use / non-use
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Children
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Negative comments
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Philosophy
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IGS impressions & residents’ voices:Sapporo
“Green only in
designated
spaces?That’sunnatural.”
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Feelings
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Use
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Children
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Don’t enter!No playing!
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Negative comments
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Philosophy
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Flâneur – walking the city
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