LAND the PRIMARY Determinant
Di Lucas, landscape architect
Christchurch Ecosystems
Source: Lucas Associates, 1995
February Liquefaction across Christchurch
Source: The Press, April 16, 2011
February Liquefaction across Christchurch’s Ecosystems
February Liquefaction across Christchurch’s Ecosystems
Bexley’s location on an 1856 Map of Christchurch’s waterways, swamps and vegetation cover
Bexley’s battle over land since 1984
Source: Bexley Wetland Restoration Project
1856 Map of Christchurch’s waterways, swamps and vegetation cover in relation to February’s liquefaction
February’s liquefaction compared to September’s liquefaction
1856 Map of the 4 Avenues
1850 Map of the 4 Avenues
1850 Map of the 4 Avenues showing former tributaries and town reserves bordering the central city
1850 Map overlayed with February’s liquefaction patterns
Source: Lucas Associates, Streamside Planting Guide
1850 Map overlayed with post February earthquake imagery
Source: Christchurch City Council, Contextual History Overview Map 5, 1850, LINZ
Flood Management Plan adopted by Christchurch City Council in January 2011
Renew Our City (ROC)
Renewed & resilient garden city responding to natural & cultural land patterning •
Natural corridors forming substantial greenways along at risk waterway lands, providing pedestrian & cycle movement, recreation, ecosystem services and natural processes.
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River parkland corridor connecting Hagley Park to the coast.
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‘Daylight’ and naturalise some former tributaries and wetlands.
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Avoiding structures encroaching on waterway systems. Minimising vehicle encroachment along waterways.
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Keeping the heritage grid, its north-south view-shafts to the Port Hills & mountains; but baffle the easterly in the east-west ones - greened corridors.
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Building mixed-use, low-rise (tree height) buildings with well-vegetated sites and surfaces, incl green roofs, and minimising piped runoff through site management.
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Buildings have friendly and elegant facades and uses adjoining public spaces.
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Reduced CBD, responding to natural & cultural cues, green-belted and separated from legible villages beyond.
The High Line, New York City example of native vegetation in the city
‘Marokapara’Green Roof (1998) example of a ‘green roof’ in the city while reducing water runoff
www.lucas-associates.co.nz