concepts themes in design

8/3/2019 Concepts Themes in Design

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Concepts & Themes in Design


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The 'Prime Directive of Permaculture'

"The only ethical decision is to takeresponsibility for our own existence

and that of our children." - Bill Mollison.


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Life Intervention Principle

In chaos lies unparalleled opportunity forimposing creative order Mollison


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Principle of Cooperation

Species co-exist and create rich, diverse ecosystems.

Individuals adjust their environment so it is more

hospitable to life.

Everything gardens.

It is on rare occasions that a species will act to reducebio-diversity


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Homeostasis

is the property of asystem, either open orclosed, that regulates

its internal environmentand tends to maintain astable, constantcondition.


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The Six Principles of Natural

Systems - Birch


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The Six Principles of NaturalSystems Birch

1. Nothing in nature grows forever

There is a constant cycle of decay and rebirth


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2. Continuation of life depends upon themaintenance of the global bio-geochemicalcycles of essential elements, in particlar carbon,

oxygen, nitrogen, sulphur and phosphorus.

Thus, we need to cycle these and other minor nutrients tostimulate growth, and to keep the atmosphere and waters of

earth unpolluted


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Water Cycle


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Nit C l


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Nitrogen Cycle


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Phosphor Cycle


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Nitrogen - 78%

Oxygen - 21%Argon - 0.9%

CO2 - 0.04%

The rest < 1%

Atmospheric Constitution


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3. The probability of extinction of population ora species is greatest when the density is veryhigh or very low.

Both crowding and too few individuals of a species mayresult in reaching thresholds of extinction.


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4. The chance that species have to survive andreproduce is dependent primarily upon one ortwo factors in the complex web of relations of

the organism to its environment.

If we can determine what these critical factors are, we canexclude, by design, some limiting factors, eg: frost, and

increase others, eg: shelter, nest sites.


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5. Our ability to change the face of the earthincreases at a faster rate than our ability toforsee the consequence of such change.

Hence the folly of destroying life systems for short-termprofit.


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Natural Resource Use - Mollison

Reduce waste, hence pollution;

Thoroughly replace lost minerals;

Do careful energy accounting and

Make a bio-social impact assessment forthe long term effects on society, and actas a buffer to eliminate any negative

impacts


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