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Old 04-17-2016, 04:29 AM   #49
(E)
 
Join Date: Jul 2014
Location: New Zealand.
Default Re: [ATE] Farming example

Grey Island

This is a dream scenario for comparison and to show how well a tiny space may be used.

Assumptions
- Temperate to sub-tropical island
- Reasonably sheltered
- Fresh water readily available
- No real fishing
- Some initial structures
- Easily defended island
- Population has grown
- Late TL 8 / Early TL 9 end
- 3 generations since the end
- Small island
- Easy boat access to other less habitable but useful locations

Resources
- Reasonable selection of plants and crops
- Good salvage opportunities
- Accessible islands include, limestone, bird colonies and volcanic.
- Boats and ships to salvage
- Wharf
- Tidal power generation sufficient to power refrigeration and cooking.

Notes
- Space is the biggest/only restriction
- Loosely based on Urupukapuka island in the bay of islands, NZ. (Urupukapuka is ten times the size, bonus points for finding the obscure link to the name Grey Island). The bay of islands is a good location to look up in google maps for an AtE location.
- Huge fertilizer input required. Nitrogen especially as fast growing crops require more. Also useful for countering the effects of excess salt.
- Terraced
- Just above the high tide line there is a wall, housing and hedges running around the entire island although this is quite low on the southern side.
- This is a hypothetical best case scenario for food production in an open environment, mainly for the purposes of showing the maximum production. Any system this intense is likely to collapse after a short amount of time without outside assistance.

Geography
- Large amounts of coastline
- About 10 hectares productive, 2 hectares rock and coastline.
- Large dam where the only stream on the island joins the water

Description
Every inch of the rolling hills is covered with plants, not one dead plant can be seen. Terraced gardens are dotted with tunnels extending deep into the hills.

Crops
Intensely gardened with crops being planted in layers, Canopy trees are planted along the northern edge of the island as well as against southern facing walls of the taller terraces. The sub canopy trees are planted almost underneath the larger trees to maximise the use of light. Vines and creepers adorn the trees. Shrubs are the next tallest group of plants and while these are scattered about they are not found in clumps so the shadows they cast don't adversely effect the smaller plants. Companion planting abounds as does doubling up species where possible, beans climb corn while potatoes and squash are crammed in beneath. Small greenhouses not much larger than the plants they hold are used to speed up the growth. Hanging from branches are baskets and bags with yet more plants growing in them, such as tomatoes and potatoes.

Tunnel system
Heated by the composting action of the waste material from the gardens the man made caves provide an environment suitable for mushroom production. Cooler tunnels are used for worm farms to provide fish and chicken food.

Livestock

The fish farming system and the irrigation system are one and the same. A multitude of small and medium tanks are distributed around the island, a percentage of the tanks also hold fresh water shellfish. Chickens are kept in tight conditions on the cooler northern facing slopes of the island. A small population of goats is maintained to process any surplus leafy material.


Crunch
As TL 8 or 9 crop yields are hypothetical at best here are some wild guess numbers. They are still less than TL 8 intensive single species production (apple orchards can reach 200 plus tonnes to the hectare, greenhouse tomatoes 750 tonnes per hectare per annum)
Each cave (4mx6m) produces two tonnes of mushrooms per annum. The 9 hectares of genetically engineered crops produce 50 tonnes per hectare every 120 days and are quite resistant to disease. 1350 tonnes per annum plus a maximum of 200 tonnes of mushrooms. Chickens, goats and fish add variety and necessary dietary requirements but only about 50 tonnes more food as a percentage of their diet is food that would of otherwise gone to feed the residents.

1600 tonnes presumes everyone lives under something else. As do the pigs and many other animals. Only 10% of the space is wasted utilities and buildings.

Wasted food accounts for a quarter of production, this could be recycled as pork at a rate of four to one in a high feed conversion animal (TL9) so 400 tonnes of waste becomes 100 tonnes of pork.

Leaving a good diet and 1300 tonnes of food that could theoretically support say 1300 people provided they have no other requirements. Reduce that to 800 once other needs are taken into account. It would still be a breeding ground for disease. (current farming supports something like 35 people per productive hectare (when dealing with calorie rich crops) once industrial, utility and animal related production is excluded) Meat and animal products are eaten about half as much as in a modern diet.
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Last edited by (E); 04-17-2016 at 04:56 AM.
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