LAND the PRIMARY Determinant

Di  Lucas,  landscape  architect  

Source: Lucas Associates, 1995

Christchurch Ecosystems

Source: The Press, April 16, 2011

February Liquefaction across Christchurch

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

Source: Bexley Wetland Restoration Project

Bexley’s battle over land since 1984

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

Source: Christchurch City Council, Contextual History Overview Map 5, 1850, LINZ

1850 Map overlayed with post February earthquake imagery

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.

•  River parkland corridor connecting Hagley Park to the coast.

•  ‘Daylight’ and naturalise some former tributaries and wetlands.

•  Avoiding structures encroaching on waterway systems. Minimising vehicle encroachment along waterways.

•  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.

•  Building mixed-use, low-rise (tree height) buildings with well-vegetated sites and surfaces, incl green roofs, and minimising piped runoff through site management.

•  Buildings have friendly and elegant facades and uses adjoining public spaces.

•  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

w w w . l u c a s - a s s o c i a t e s . c o . n z