Part & Whole – Reconciling Scale, Density and Sustainability in Asian Megapolises

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B

URBAN PAR AME TER S

G EOG R APHY AND CLIMATE

Shanghai Baoshan

Urban Mutations of an Overexploited Estuary Baoshan district is located in northern Shanghai and is divided into two parts: the land and the islands. Developed at the intersection of the River Huangpu and the River Yangtze, Baoshan is known as the water­ way of Shanghai. The East China Sea connects over four hundred ports in one hundred and sixty-four countries and regions. Taking advantage of its coastal qualities and alluvial plains, this rich and fertile natural and agricultural territory turned to transport and fishing. The district’s strategic geographical location has encouraged the development of its coast and plains excessively exploiting its potential. The industrial port is destined to become a future mega cruise port terminal. Intensive industrialisation and expansive urbanisation have damaged the territory’s geography and microclimate.

Shanghai: Hydrological transformation impacts on the natural environment

UNDER STANDING S IT UATI ON S

1

Since the construction of the Three Gorges Dam in 2003, the Yangtze subaqueous delta is experiencing overall (net) erosion leading to loss of land and submergence.

Delta recession

Hydrographic network

Waterbodies Man-made canals

Baoshan district: Industrialisation impacts on the microclimate

(kg CO2 · a-1) 0-749 750-1,192 1,193-1,482 1,483-1,674 1,675-1,964 1,965-2,407 2,408-3,080 3,081-4,104 4,105-5,662 5,663-8,033

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Annual mean temperature

The maximum annual average wind speed is 3.7 m/s in Chongming, and the minimum wind speed is 2.8 m/s in the Downtown.

Temperature in the Downtown is the highest at 16.2 ºC, and the difference from the minimum temperature is 0.8 ºC.

Urban Heat Island (UHI)

Yangtze River

(m) -57~-40 -40~-30 -30~-20 -20~-10 -10~-5 -5~-2 -2~0 0-1

CO2 emissions

Annual mean wind speed

Air pollution

SO2

Land surface temperature

NO2

(mg/cu. m) >0.1 0.09 0.08 0.07 CO2 0.06

ºC 16.2 15.3

High UHI effect directly corelated to urbanisation Extreme high temperature High temperature Sub-high temperature Medium temperature Sub-medium temperature Sub-low temperature Low temperature

NO

PM10

Winter

Summer

ºC 5.5 - 10.70 10.71 - 11.40 11.41 - 12.30 12.31 - 13.50

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