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Green-seeds.com:
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A Seaside Arcology for Southern China
By Francis Frick Department of Architecture University of Hong Kong
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Abstract
 Arcology, or architectural
ecology, is a generic name for physical design intervention associated
with a temporary, localized decrease in entropy within a defined context.
Arcology is a stabilizing design element in the face of environmental,
economic, and social change. Such change assumes the possibility of
severe food and water scarcity induced by any combination of anthropogenic
or natural causes. While arcology addresses interdisciplinary problems
in interdisciplinary ways, this presentation highlights its role in
urban agriculture (AU) and wastewater bioremediation. Arcology is
urban infrastructure in three dimensions, with architectonic(space-making)
attributes, informed by the ecosystem model. It can be built within
existing cities or in rural areas. Rapidly emerging problems in China's
southern coastal urban areas already provide a need and a context
to realize the arcology "seed" design described here. Beside feasibly
addressing current problems, arcology's significance and value will
probably increase as ecological/resource problems intensify in China
and elsewhere. Additionally, Hong Kong is seen as a positive "green"
influence for green technology transfer and advanced design services
implied by arcology.
Keywords: Arcology
(architectural ecology); urban agriculture; wastewater bioremediation;
renewable hydrogen systems; China; Hong Kong.
Context All trends
point to China as the world's largest GNP in no more than 2 decades,
replete with dire environmental and other implications
[1]. Nonetheless, China could feel the multiple effects of
resource scarcity earliest, most intensely and with inestimable global
repercussions
[2,3]. Falling far short of answering current needs, Chinese
policymakers, educators, planners and designers could easily face
unprecedented instability. Using current construction practice and
academic programs as a barometer, the mainland architectural and planning
community produces work which can be generalized as simplistic, ecologically
ignorant or blindly imitative of mostly American examples now known
to be wasteful, destructive and antisocial. Western technologies,
when sought after, are invariably poorly chosen because users "fail
to think in total systems, only isolated parts"; further, these technologies
are often already outdated in the countries of their origin.
[4]. Improved transfer programs and unique specialists will
be sought to implement saner, healthier options alien even to Westerners
.
[5,6] Food Trends According to Chinese sources, annual grain
production since 1949 increased 3.1% to about 460 million tons in
1995; projected needs will reach 550 million tons by 2010 for 1.4
billion people (390 kg/capita). Population is expected to peak at
1.6 billion by 2030 with a need of 640 million tons of grain (400
kg/capita).
[7] China's food supply comes from a decreasing water supply.
* Per capita drinking water supplies in China are 2,340 cubic meters
a year, 1/4 of the world's average. About 80% of discharged water
is not effectively treated before release
[8] * More than half of China's rivers and lakes are seriously
contaminated, with about 40,000 square kilometers too polluted for
fishing
[9] * China's rapid urbanization makes its cities the most
vulnerable to prolonged drought in the interior; currently 2/3 of
all cities in China already suffer from severe water shortage 
[10] * Up to 1996, all official predictions of food supply
coming from mainland China consistently neglected the potential effects
of climate change. Mainland scientists have finally predicted global
warming to decrease crop production in northern China while speeding
up evaporation and aggravating water shortages in key cities
[11]But only after 100 top Chinese legislators petitioned central
authorities for immediate action to avert a grain crisis caused by
the worst drought and flood in 400 years (both occurring in the same
year)
[12]. China's food supply comes from a decreasing land supply.
* China already feeds 22% of earth's people on 7% of earth's arable
land
[13] * 30% of China's arable land suffers from topsoil erosion;
67% of it lies in remote mountainous areas
[14] * As of September 1996 China's per capita arable land
in China stood at 0.1 hectare (104 ft x 104 ft)
[15] From 1990 to 1994, close to 1% of China's cultivated land
was lost to industry each year
[16] If land abuse continues, then China's arable land per
capita would drop to 0.07 ha (87 ft x 87 ft)when the population levels
off at an assumed 1.6 billion persons
[17] * Between 1986 and 1995, 1.97 million hectares of cropland
in China were occupied by nonagricultural use; unplanned or uncoordinated
takeovers of arable land for industrial development projects made
nearly 133,000ha of farmland idle; excessive residential building,
3.4 million ha. Farmland abuse is traced partly to the lack of a comprehensive
land planning policy in China
[18] * According to satellite surveillance, the total urban
areas of China's top 31 cities rose 50.2% during this period
[19] * China has recently announced plans to buy or lease land
in Brazil to produce additional food
[20]. China feeds a growing population which is becoming increasingly
urban. * China's urban population stood at over 350 million in 1995.
It is expected to pass 450 million by 2000
[21]. 432 new cities in China between 1995 and 2010 will almost
double the 1995 amount
[22], housing approximately 60% of China's total population;
* China's Construction Minister Hou Jie says more than 80 million
rural migrants (the population of Germany) have arrived in coastal
urban areas between 1992 and 1995.
[23] from a total pool of 124 million surplus laborers. This
surplus will grow to 200 million by 2000
[24] * Food needs of the cities will likely exceed China's
carryover stocks by early next decade; in fact, its cities are due
to become so large that even global reserves as presently accumulated,
are already inadequate
[25] * Eating five times as much meat than 18 years ago
[26] China has outstripped the USA in red meat consumption
and fertilizer use
[27]. It has imported 16 million tons of wheat for the first
time in 1995
[28]seen against previous annual imports of 11 million tons
[29] * Because farms are increasingly remote from cities, inadequate
storage and transportation networks are now responsible for 10% of
China's grain losses and 33% of its fresh vegetable losses
[30]. * China aims to raise grain output 11% to keep pace with
a population growing at the rate equivalent to adding another Shanghai
each year
[31, 32].Yet China cannot win the trust of analysts who point
out published contradictions in grain production estimates
[33]. * Meanwhile China promises to become a world leader in
greenhouse gas emissions as coal combustion (the main source of acid
rain) steps up to fuel its mammoth construction agenda, itself largely
based on imported design paradigms of waste, excessive consumerism
and suburban sprawl. Environmental degradation in China will continue
unchecked until at least 2015
[34]. Government policies stress "damage control
[35] over prevention. Why arcology in southern China? * The
combined effects of interdisciplinary time-bombs are now being felt
in southern China: rural migrant/urban homelessness
[36], widespread acid rain
[37-39], with economic losses exceeding 2 billion yuan
[40], widespread contaminated water
[41,42], solid waste accumulation
[43], especially in the Pearl River Delta area, which will
urbanize to 45% by 2000
[44]. Urban infrastructure, where it does exist, cannot keep
up with demand
[45]. Hong Kong, dependent on mainland water, is now directly
threatened by swelling pollution north of the border
[46]. * Interdisciplinary trends in China have been stated.
Arcology seeks to address interdisciplinary problems in interdisciplinary
ways, potentially in one stroke
[47] * As a general rule, social problems emerge in southern
China's coastal areas five to ten years ahead of the rest of the country
[48] * Arcology can address an immediate socio-economic-health
problem in southern coastal urban peripheries (where migrants and
waste accumulate), and with economic promise
* Traditional Chinese pragmatism lends itself to a paradigm of frugality
not coincidentally embodied by the ecosystem (and arcological) concept
* By nature of numerous constraints, China offers an initial proving
ground by providing initial test conditions, i.e., that which is not
frugal will fail from both Chinese pragmatic and arcological perspectives;
* From a design standpoint, local constraints lend themselves to "homespun"
structural systems which point toward a feasibly constructed arcology
with lower than expected costs. Indigenous structures are then equipped
with highly refined component technologies, some of which are imported
or obtained through transfer programs. Arcology and Urban Agriculture
By implication, urban agriculture (UA) asserts that the separation
of urban life and non-urban food production is possible only under
artificial, subsidized conditions which accelerate entropy. Both arcology
and UA anticipate rural agricultural collapse in the event of climate
change. Both seek to provide jobs to the jobless. In this scheme,
migrant farmers and urban shitters provide mutually needed skills
and resources in a self-contained urban ecosystem. UA, as a part of
arcology, not only offers employment and nourishment, but also a home.
If UA is a basic tool, then Arcology is a kind of structured toolbox,
housing many related "green" subsystems of food, water and energy.
UA is built-in, on rooftops and much everywhere else, while often
extending into immediately adjacent land, fed by its own wastewater.
UA and arcology both draw from the same preindustrial city model which
persisted through 97% of recorded human history. This model, based
on logistical compactness and self-reliance, becomes crucial in the
threat of climate change and scarcity. Arcology: Background Arcology
(architectural ecology) is a name traced to the work of Dr. Paolo
Soleri
[49] for a compact, 3-dimensional infrastructure. Arcology
is a workable model for human habitation. Overlapping, redundant relationships
in 3D allow for efficient energy/material transfer and conversion
while enhancing social interaction. The largest arcologies can theoretically
reduce the footprint of a city by a factor of 50, eliminating the
need for automobiles. An interpretation of biological principle, arcology
is miniaturized, complexified, self-effacing, frugal technology operating
within a negentropic (entropy-reducing) field. It is not only a means
of addressing social and environmental degradation, but a cultural
end unto itself, in ways alien to Western consumerist models of urban
sprawl and waste. Cultural bias, economic conservatism, and other
difficulties hampered progress at realizing prototypes in the United
States, exacerbated by the multiple excesses of the Reagan-Bush era
[50]. Growing awareness demonstrates arcology as a near-mature
concept coming of age. China's rapidly evolving enviro-socio-economic
conditions increasingly justify the construction of modest prototypes,
particularly in the urban peripheries of its southern coastal provinces.
Entropy as the enemy Arcology's explicit goal is to decrease entropy
within a defined region. This is normally achieved by biological organisms
[51]. Entropy, a term originating from thermodynamics
[52], implies a host of negative correlations attached to our
global development paradigm based on Newtonian/Cartesian materialism.
Entropy's negative correlations cross ecological, biological, meteorological,
hydrological, economic, social, political, psychological and aesthetic
boundaries
[53]. Arcology reduces entropy by weaving itself into a torn
fabric of unanswered needs. Entropy is an interdisciplinary phenomenon.
Negentropy (in the form of arcology) is as well. Sustainability =
Interdisciplinarity It is the fight against entropy that mandates
interdisciplinary approaches. Sustainability, in its best meaning,
begins with education orr
[54] and Kline
[55] show that classical academic disciplines, never innocent
bystanders, have accelerated entropy by refusing to communicate with
each other. Arcology explicitly ignores arbitrary boundaries between
disciplines. Design Generals A seed arcology appropriate for southern
Chinese coastal sites in the Pearl Delta River area or Hainan Island
is proposed. It is the home for approximately 300 people to start,
and centers around an in-house food packaging facility and Integrated
Water Center (IWC). Because this project intercepts flows of residential
wastewater which might otherwise flow to industrialized treatment
facilities or even the sea, cooperation with city planners and local
governments is assumed. Marketable food products come directly from
adjacent terraces where urban wastewater is biologically purified,
i.e., urban agriculture. Solar and wind electrolysis and wastewater
gasification provide hydrogen gas which in turn provides electricity
and heat on demand to satisfy resident needs throughout the 15-hectare
minimum site. The structure passively saves energy via bioclimatic
adaptation, reflected solar illumination, and reused/recycled materials.
The structure contains a small craft marina, hydroponics gardens,
filter beds, bioremediation tanks, dry and liquids storage, classrooms,
offices, dormitories, a small market plaza and shared, communal spaces.
Bio-terraces and algae ponds, linked by a Contour Retaining wall Infrastructure
System (CRIS) surround its outer parts. Arcology is a factory, farm,
school and community in one, located in the urban periphery where
migrants tend to settle. Automobile traffic is limited to delivery
and emergency vehicles; pedestrian traffic is the norm in a condensed,
three-dimensional environment. This seed is meant to act as a self-reliant
economic unit. The arcological seed not only provides urban infrastructure
where none existed previously, but one predicated on the ecosystem
model or natural resource cycles
[56] Urban wastewater has already demonstrated its economic
potential in China and remains largely untapped
[57]. Design Particulars Location. The design has evolved from
an early concept originally intended for a south-facing waterfront
hillside location in Zhuhai Special Economic Zone
[58], but is feasible anywhere along the Pearl River Delta
waterfront, most ideally on hill topography (altitude above sea level,
25 m/80ft). Hainan island, China's least developed Special Economic
Zone, offers the best opportunities to introduce advanced infrastructural
design. Hilly topography 15 meters altitude (minimum) greatly facilitates
bioterracing (arcology by definition can create its own topography
on flat sites with modifications). In all cases, the design described
here assumes a subtropical location between 20 and 25 degrees north
latitude, average temperature extremes of 31°C/89°F and 10°C/40°F
for summer and winter, a wet season between January and April, and
winds largely from the south or southeast (45% of the time). Gross
bldg. floor area: m2/ft2 Occupied land area: 6 ha/14 acres. Overall
height-length-width of structure: 25m /(80ft) - 150m/(470ft) -80m/(255ft).
Structure. The structure perpendicularly straddles the coastline:
half built over shallow water, half built on inclined land. A contour
access road, halfway up the hill, penetrates the structure under large
portal arches where land and sea sections meet. Largely of poured
concrete and brick, the seed arcology accommodates China's construction
industry. An integrated network of masonry pylons and connecting arches
support all of its interior and exterior spaces. Lateral thrust from
central arches are buttressed by flanking arches on both sides, gently
carrying all stresses to the seabed. The masonry pylons penetrate
a cascading series of concrete sun terraces fanning out over the water.
The cascading terraces hold verdant, lush wastewater gardens and filter
beds, geometrically radiating from a common origin, the Integrated
Water Center (IWC). Principal spaces lie in the cool, shaded, naturally-ventilated
cavities below the trays: food packaging, dry/liquids storage, offices
and various equipment rooms. The topmost "roof" houses small 'Living
Machines', vegetable gardens and classrooms. The cascading terraces
functionally and aesthetically unify land residences and ocean workspaces.
Containing stairs, elevators or composting toilet/washrooms, vertical
pylons stand upon concrete and masonry "finger" piers, resting on
the seabed. All are secured pinned by a network of prefabricated or
poured in place concrete piles, posttensioned after driving. Here,
an arcuated, compressive masonry structure reduces the need for rare,
expensive, and energy-intensive steel reinforcement. Labor/material
cost ratios in the South as a rule are the inverse for those in the
North. All construction is based on masonry shell/ concrete core elements,
eliminating the need for scarce, costly plywood forms. Arches under
construction rest upon temporary brick supports. Site preparation
and construction methods favor local labor. High-quality bricks, scavenged
from demolished traditional buildings (common with new "development"),
offsets the embodied (compounded) energy of construction, which on
average is ten times more resource/energy intensive than post-construction
occupancy
[59]. Construction costs are minimized without compromising
aesthetics. IWC (Integrated Water Center). Dwindling water supplies
facilitate an emerging water economy of which IWCs can be an integral
part
[60]. IWCs maintain normal levels of productivity even if supply
dropped below 10 liters per day per capita (ldc). Normal physiological
requirements are 2-5 ldc, according to temperature and humidity. Water
for bathing, washing, and cleaning purposes consumes a minimum of
15 ldc. An IWC houses cooking and washing facilities, showers, tap
water and toilets. Potable water, including ice, would be packaged
and dispensed in supermarket-style containers. The heart and brain
of the arcology, IWC is a natural social center, located between its
main portals and surrounded by lush, verdant balconies of resident
housing. It is the metaphorical "hinge" and functional center of the
entire design. Transparent water tanks and conduits serve monitoring
and educational needs. Residents and visitors can visibly follow water
and energy flows through the site, itself a living educational tool.
Filtered, grey, and black water (each with its own storage) is directed
through cybernetically optimized loops, dynamically maximizing useful
life before recycling through flexible rerouting. Potable water, occasionally
from unclorinated city supplies (best for gardens), but mostly from
site storage or hydrogen fuel cells, becomes "grey" (after washing
or bathing) and "black" (for flushing sewage and/or bioremediation)
[61]. Wastewater is directed to bioterraces, aquaculture, bioremediation
tanks, filter beds and hydroponic gardens depending on the degree
of adulteration. Most site-circulated water would be raw since agri/aqua-cultural
needs require nothing better. Sequencing , volume, flow rates and
required areas for a 6-day bioremediation cycle are given by Hilbertz
et al
[62] and Todd et al
[63]. Because hydrogen (and therefore electricity) production
is directly linked to water use, the IWC is "mission control" for
all energy flows as well. Algal, aqua-, pisci-and hydroponic culture,
linked in three dimensions (dictated by site topography and physical
structure) are all functional components in a densely packed, redundant,
synergetic network which borrows directly from historical models
[64, 65]. CRIS (Contour Retaining Wall Infrastructure System)
Coined by American architect Daniel Liebermann
[66], CRIS transcends millennia of accumulated experience in
hillside terracing by incorporting multiple infrastructure elements
within its mass. Liebermann proposed various types; the masonry shell/concrete
core formula is adopted in this project for reasons already mentioned.
Here, CRIS acts as a series of 'earth-dams'. It conserves topsoil
much needed to support food production
[67], stabilizes the site in question, provides seismic-proof
foundations for resident domiciles and access road, impounds algal
and aquaculture ponds, collects rainwater and provides varied interstitial
social spaces, all dictated by hill topography. Feasibility A project
of this type is feasible in various types of joint ventures with the
possibility of initial support from higher authorities. Approximately
80% of the technology required exists either domestically or in foreign
companies based on Chinese soil. Initial capital investment costs
under several scenarios can be shouldered by local municipalities
or higher authorities; arcology is infrastructure, and as such is
a normal part of any municipal development agenda. Early assistance
should provide for a skeletal renewable hydrogen energy system to
facilitate the construction process and site power needs. Enormous
substantiation exists on renewable hydrogen systems and economics
[68]. Adapting construction to the local culture offsets the
costs of highly refined component technologies; immediate implementation
is thus possible. Hong Kong, China's Green Dragon While Hong Kong
presents a priceless developmental model for China
[69], it will cease to enjoy its privileged role as "middleman
to the West" when China fully open its doors to the world market by
2000. Hong Kong will find its unique place among other cities competing
for world attention, especially Shanghai
[70]. Since China's Open Door Policy of 1979, industrial enterprises
left Hong Kong for cheaper land and labour north of the border
[71], allowing Hong Kong to develop its service industries,
one of which is advanced design. It is in this sector the author stresses
Hong Kong's future promise as China's environmental innovator, or
"green dragon"
[72]. If promoted by its professional, research and business
communities, HK can lead China into the next century
[73]. Arcology is already a timely and needed tool. Notes
[1] Ryan, M; Flavin, C. "Facing China's Limits", State of the
World, 1995. (Worldwatch Institute) (1995) W.W. Norton, New York.
[2] Smil, Vaclav. China's Environmental Crisis: An Inquiry
into the Limits of National Development, (1993) M.E. Sharpe, New York.
[3] "China is probably the most important country in the world in
terms of what happens to the planet" - Dr. Thilo Bode, Executive Director,
Greenpeace, "Greenies come in peace", Fiona Holland, South China Morning
Post, 20 October 1996, p.11.
[4] Greenpeace executive director Thilo Bode in "Mainland and green
group to cooperate", Elisabeth Tacey, South China Morning Post, 11
October 1996, p.5.
[5] Meier, Richard. "Ecological Planning and Design: Paths to Sustainable
Communities" (unpublished manuscript), Institute for Environmental
Research, University of California (Berkeley), 1993
[6] "In many cases...technology from the West...is dinosaur technology."
(-Thilo Bode, Executive Director, Greenpeace) Fiona Holland, South
China Morning Post, 20 October 1996, p.11.
[7]"Beijing sets 5% grain import limit", Ivan Tang, South China Morning
Post, 25 October 1996, p.4.
[8] "Priority given to saving endangered resources", Agatha Ngai,
South China Morning Post, 4 March 1997, p.10.
[9] "Serious water pollution wiping out aquatic life", Associated
Press, South China Morning Post 19 January 1997, p.5, see also Guangming
Daily, 18 January 1997.
[10] Ryan, M. et al, 1995.
[11] "Water shortages feared as global warming worsens", UPI, South
China Morning Post, 9 January 1997, p.11.
[12] "Call for urgent action to avert grain crisis: Senior leader
warns shortage a 'matter of life and death for communist party and
country'", Willy Wo-lap Lam, South China Morning Post, 15 July 1996.
[13] "Sino-Brazilian ties boosted by accords (Agriculture cooperation
agreement may result in Beijing buying areas of land to produce food)"
Agencies, South China Morning Post, 12 November 1996, p. 8.
[14] State Land Administration Bureau Report, [Chinese] 29 March 1997.
[15] "Arable land loss halted, official says", Agence France-Presse,
South China Morning Post, 19 September 1996.
[16] "Harvest must keep setting records", Xinhua, Hong Kong Standard
(China Review), 30 September 1996, p.6.
[17] State Land Administration Bureau Report, [Chinese] 29 March 1997.
[18] Ibid.
[19] Ibid.
[20] Agencies, South China Morning Post, 12 November 1996, p. 8.
[21] "Helping resolve housing crisis 'matter of world concern'", Agence
France-Presse, Hong Kong Standard, 31 December 1996, p.4.
[22] Liang, Chao. "Country to Set Up 432 New Cities in 15 Years",
China Daily, 2 June 1995.
[23] 'Population cripples urban development", Reuter, South China
Morning Post, 9 October 1996, p.10.
[24] The Ministry of Agriculture notes that China's arable (rural)
land requires only 44% of the current total of 450 million laborers
to work on; another 28% are engaged in rural industries; and 28% have
nothing to do. China still has 100 million ha of uncultivated rural
land which could absorb most of this last 28%. Urban agriculture can
form a significant portion of that. "A flood of rural workers: China's
cities paying for farmers' low profit margins", Zhang Dan, The World
Paper, November 1996, pp.1-2, appearing in the Hong Kong Standard,
23 November 1996.
[25] Meier, Richard. "Food Futures in China" paper presented at the
International Conference of Urban Ecology, Beijing, November 1994.
[26] "Battle to satisfy awesome appetite (China's vast needs could
disrupt the security of world food supplies)", Jennifer Lin, South
China Morning Post, 22 November 1996, p.21.
[27] "Giant set to gobble world's resources" (researcher warns of
growth dangers), Charles Snyder, Hong Kong Standard, 30 August 1996.
[28] Lin, South China Morning Post, 22 November 1996, p.21.
[29] "Beijing predicts cotton shortage", Agencies, Hong Kong Standard,
16 September 1996
[30] "Disputed harvest claims behind new target" Tom Korski, South
China Morning Post, 19 November 1996, p.5.
[31] Tom Korski, South China Morning Post (Business), 18 March 1997,
p.4.
[32] Jennifer Lin, South China Morning Post, 22 November 1996, p.21.
[33] Tom Korski, South China Morning Post, 19 November 1996, p.5.
[34] Smil, 1993
[35] Zhang, Xia. "Just Opening Salvos in the War on Pollution", China
Daily, 6 June 1995.
[36] "Environment is Vital to Urban Expansion" Opinion Column, China
Daily 11 May 1995.
[37] Wang, Rong. "Acid Rain Still Haunts Guangdong", China Daily 5
May 1995.
[38] More than 40% of China was covered with acid rain as of 1996,
affecting even Japan. China's coal-fired plants discharge more than
28 million tons of soot, dust, and sulfur dioxide into the air each
year. "Scientists blame roast mutton for acid rain", Tom Korski, South
China Morning Post, 12 December 1996, p.10. and "Raining acid on Asia's
environment", South China Morning Post, 21 March 1997, p.22.
[39] 50% of Guangdong Province rainfall is acid. "Pollution shocks
Guangdong into water clean-up drive", Pamela Pun, Hong Kong Standard,
19 February 1997, p.6.
[40] This loss is according to 1996 figures. "Guangdong vows to deal
with pollution", Munn Tam, South China Morning Post, 19 February 1997,
p.8.
[41] Wang, Rong. "Guangdong Tackles Water Pollution", China Daily
3 June 1995.
[42] 90% of rivers and lakes in Guangdong have been polluted. Pamela
Pun, Hong Kong Standard, 19 February 1997, p.6.
[43] Chen, Y. "Dollars or Degradation", China Daily, 22 November 1995.
[44] Pamela Pun, Hong Kong Standard, 19 February 1997, p.6.
[45] Personal communication, Shenzhen City Planning Research Institute.
[46] "Pollution threat to our drinking water", Lucia Palpal-Iotoc
and Maureen Pao, Hong Kong Standard, 11 April 1997, p.1. and "Raw
sewage risk to drinking water as pollution soars", Fiona Holland,
South China Morning Post, 11 April 1997, p.1.
[47] Soleri, Paolo. Arcology: The City in the Image of Man. (1969)
MIT Press, Cambridge.
[48] Personal communication, Dr. Anthony Yeh Gar-on, Assistant Director,
Center of Urban Planning and Environmental Management, University
of Hong Kong.
[49] Soleri, op. cit.
[50] Personal communication, Arcosanti, Cordes Junction, Arizona.
[51] Asimov, Isaac. Life and Energy. (1962) Avon Books, New York,
p.200.
[52] Asimov, Isaac. "What is Entropy", Science Digest 73 (January
1973); Brillouin, L. "Life, Thermodynamics and Cybernetics". American
Scientist 37 (October 1949).
[53] Rifkin, Jeremy, with Ted Howard. Entropy Into the Greenhouse
World (Revised Edition). (1989) Viking Press, New York.
[54] Orr, David. Ecological Literacy. (1992) State University of New
York Press.
[55] Kline, Stephen J. Conceptual Foundations for Multidisciplinary
Thinking. (1995) Stanford University Press.
[56] Yeang, K. Designing with Nature: The Ecological Basis for Architectural
Design, (1995) Mc Graw Hill, New York.
[57] Ding, Xuemei. "Progress Depends on Efficient Use of Resources"
(wastewater recycling), China Daily, 20 October 1995.
[58] Frick, Francis. "A Wave Power Design for China", Sunworld (International
Solar Energy Society), June 1993.
[59] Roodman, D.M. "Making Better Buildings". State of the World,
1995 (Worldwatch Institute) W.W. Norton, New York, 1995
[60] Meiera, 1993.
[61] Kourik, R. Greywater Use in the Earthscape. Edible Publications,
Santa Rosa, 1988.
[62] Hilbertz, W. et al. "Autotopia Ampere - Building with Sun and
Sea", proceedings from IL 41:Building with Intelligence/Aspects of
a different Building Culture. Institute of Lightweight Structures,
Stuttgart, 1995.
[63] Todd, J. et al, From Ecocities to Living Machines: Precepts for
Sustainable Technologies. (1993) North Atlantic Books, Berkeley.
[64] Li, W., 1993
[65] Zhong, G. et al. Integrated Farming/Aquaculture in South China.
The Dike-Pond System of the Zhujiang Pearl River) Delta. (1988) Cambridge
University Press, New York.
[66] Frick, Francis. "The Ecologics of Terracing and Related Earthworks"
(manuscript), University of California, Berkeley, June 1994.
[67] ibid.
[68] Johansson, T. et al, eds. Renewable Energy: Sources and Fuels
for Electricity, Chapter 22: Solar Hydrogen (Ogden and Nitsch, eds.),
(1993) Island Press, Washington DC.
[69] Representing 22% of China's entire GNP, average per capita income
in Hong Kong appears ready to surpass that of the United States shortly
after 2000.
[70] Yeh, Anthony Gar-On, Ed. Planning Hong Kong for the 21st Century:
A Preview of the Future Role of Hong Kong. (1996) Center of Urban
Planning and Environmental Management, University of Hong Kong.
[71] Yeh, Anthony Gar-On and Mak, Chai-Kwong, eds. Chinese Cities
and China's Development: A Preview of the Future Role of Hong Kong
(1995) Center of Urban Planning and Environmental Management, University
of Hong Kong.
[72] "Greens urge action on energy and waste", Linda Choy, South China
Morning Post, 21 January 1997, p.4. (Hong Kong could become China's
green dragon if business leaders are courageous and intelligent enough
to see the need and the potential.)
[73] Currently Hong Kong boasts 11 environmental groups and organizations.
A collective academic agenda aims to have Hong Kong match even surpass
Tokyo as Asia's intellectual and research capital in less than a decade.
(Personal conversation with Felix Wu, director of the Research School,
University of Hong Kong). Return to Contents' Page Revised October
23, 1997 Published by City Farmer Canada's Office of Urban Agriculture
cityfarm@unixg.ubc.ca
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Green - Seeds Co., Ltd.
81/10B Ho Van Hue Street, Phu Nhuan District, Ward 9, Ho Chi Minh City, Vietnam
Tel: +84 (8) 847 6901 - Fax: +84 (8) 844 1392 - Email: info@green-seeds.com
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