Rethinking Industrial Agriculture

food forest

Small food forest

(This is the second of two posts about dramatic changes that are occurring in food production and marketing, as well as consumer food choices.  Part II addresses the application of design technology to water and soil management, which is revolutionizing the movement towards local food production.)

Applying Design Technology to Farming

Most food localization initiatives have been accompanied by radical technological advances that apply design principles to the way food is grown. The design technology employed in the rapidly growing fields of permaculture and biointensive farming is based on a radically different approach to water and soil management, modeled on nature’s ecosystem design principles. Anyone who studies natural ecosystems can’t help but notice there are no neat rows or bare soil in natural forests and prairies. Nature crams as many living organisms as possible, all with complex symbiotic relationships, into every square inch.

Ironically this “revolutionary” technology happens to be 4,000 years old. Chinese farmers discovered around 2,000 B.C. that designing their fields to replicate natural ecosystems produced the highest yields. This approach is well-described in F.H. King’s 1911 book Farmers of Forty Centuries. The US Department of Agriculture sent King to China in the early 1900s to investigate why Chinese farms were so amazingly productive. What he discovered was a highly sophisticated system of water and soil management that emphasized species diversity and rational utilization of ecological relationships among plants and between plants and animals.

The Watershed Model of Water Management

Despite King’s innovative work, it has taken English-speaking countries a full century for the lessons to sink in. Applying capitalist slash and burn mentality to farming clearly hasn’t worked. Agricultural yields in Britain and its former colonies, which all employ similar “modern” methods of water management, have destroyed tons of topsoil and essentially reduced agricultural yields by a third. In a desperate attempt to ramp up yields, chemical insecticides and herbicides were introduced after World War II. These, in turn, systematically killed off microscopic soil organisms essential to plant health.

Britain, the US, Canada, Australia, New Zealand and other former British colonies all adopted the “drainage” system of water management. In this approach, trees are systematically cleared (usually by burning) and wetlands and springs are drained. Typically land managed in this way is subject to alternating flooding and drought, creating an unending cycle of economic hardship for farmers and farming communities. Besides destroying existing crops, repeated flooding also washes away topsoil and essential plant nutrients.

In contrast traditional farmers in non-English speaking countries are more likely to use the centuries’ old “water catchment model” of water management, sometimes referred to as terraquaculture. Because they deliberately design their farms to catch and hold water, they aren’t subject to flooding, soil erosion and draught. Chinese farmers wouldn’t dream of draining their wetlands, which are always the most productive areas for high energy food crops, such as rice and other grains.

Plowing “Kills” Soil

Soil technology has also greatly advanced in the last five decades, with the discovery of complex micro-ecosystems that support optimal plant growth. These eocosystems include a myriad of soil yeasts, bacteria and other organisms that live in symbiosis with host plants. Not only do they provide nutrients to the root systems of larger plants, but they also produce a myriad of natural insecticides and herbicides to protect them against pests. Mechanically disrupting the soil through plowing kills these organisms. They can potentially recover if the soil is left undisturbed – unless the grower totally wipes them out with pesticides, herbicides or bacteriocidal GMOs.

Studies show that plant diversity is also essential to a healthy plant ecosystem. Planting a single crop in neat rows surrounded by bare soil is also perfect invitation for weeds and insects to come and attack them.

Permaculture, in contrast, discourages noxious weeds and insect pests by creating “food forests” made up of compatible food-producing trees, shrubs and ground cover crops. Unlike veggie gardens limited to annuals that have to be replanted every year, the food forest is self-sustaining with minimal input. For people worried about the economy collapsing and their gardens being invaded by barbarians from the big city, it’s also virtually indestructible.

To get some idea what a food forest looks like, check out this video by Australian permaculture guru Geoff Lawton:

Attention City Dwellers

Lawton is also a big fan of small space urban permaculture because it’s the most productive in terms of yield per square foot. The following is a video by one of his students about designing a permaculture food growing system on your balcony or terrace:

photo credit: London Permaculture via photopin cc

Originally published in Dissident Voice

Permaculture Village in Davis, California

A great video about a 30 year old community food forest in Davis California.

Despite working full time jobs, residents can produce 70% of their food needs in their front and back yards.

The beauty and simplicity of permaculture and perennial food forests.

Full video free online at

http://www.geofflawton.com/fe/60356-food-forest-suburb

How Permaculture Can Save Humanity

food forest

London Food Forest

How Permaculture Can Save Humanity and the Earth, but Not Civilization

by Toby Hemenway (2013)

Film Review

Below is another great video on the history of horticulture by permaculturist and ecologist Toby Hemenway. Hemenway’s main premise is that agriculture – even non-industrial agriculture – is unsustainable. He approaches the issue from an anthropological perspective, by examining prehistoric cultures that became extinct as a direct result of transitioning from horticulture to agriculture.

Hemenway defines horticulture as food production using small garden and food forests that incorporate and support existing ecosystems. Agriculture, in contrast, destroys ecosystems to create vast clear cuts dedicated to single crops. The archeological record reveals that agriculture first developed in the fertile crescent of Mesopotamia (modern day Iraq) around 10,000 BC. At the time it was lush forest and bush. However after 3,000 of artificial irrigation, the soil became too salty to support life. The land, which became a desert, still hasn’t recovered. The same thing happened in ancient Egypt and Greece.

Archeological evidence reveals that all agricultural civilizations follow a typical pattern of soil depletion after an average of 1,000 years. Then they either die out or moving to new land via conquest. According to Hemenway, the Oil Age was a great boon to our current agricultural civilization. Farm machinery and petroleum-based fertilizers and pesticides provided an immense burst in world food production. Unfortunately this only hastened soil degradation. At the same time a steep price increase (related to oil a natural gas scarcity) and made them unavailable for a growing number of farmers, especially in the developing world.

Hemenway also asserts that the prehistoric importance of horticulture has been greatly underestimated owing to three myths widely promulgated over the last two hundred years.

Myth one: food surpluses produced by agriculture are essential to produce the leisure time and specialization required for culture to flourish.

New archaeological evidence reveals human beings engaged in cultural activities such as basket weaving, art, and music for hundreds of years prior to the development of agriculture.

Myth two: horticulture was merely a brief transition between hunter gather and agricultural societies.

Fossil and other evidence suggests that Native Americans planted and maintained most of the East Coast, Mississippi, and Amazon as food forests for more than four thousand years before Europeans destroyed their horticultural societies.

Myth three (thanks to English philosopher Thomas Hobbes): horticultural cultures are made up of savages who live short, nasty, brutish lives.

Anthropological and archeological evidence suggests exactly the opposite. Hunter-gatherer and horticultural societies devote far less time to securing and producing food than farmers. The former spend an average of three hours a day harvesting a day’s worth of food for their families; whereas pre-industrial farmers spent an average of two to three days to producing one day of food. This excluded crops they sold to pay rent.

Skeletal remains suggest people in horticultural cultural societies were healthier, taller, and lived long than people in pre-industrial agricultural societies. Moreover the advent of agriculture introduced a host of degenerative diseases, including arthritis and deadly viral epidemics (influenza, small pox, measles, polio, etc) that people caught from domesticated animals.

Worst of all, the introduction of agriculture led to the advent of class society, military conquest, and famine. As Hemenway points out, war and famine are virtually unknown in hunter gatherer societies that migrate to follow their food source. Likewise it’s virtually impossible for a marauding army to steal the perennials out of a food forest.

Permaculture to the Rescue

Hemenway views our current food production system as a major culprit in the current ecological and resource crisis the planet faces (e.g. climate change, ocean acidification, mass species extinction, and fossil fuel, fresh water and topsoil depletion). He estimates that without drastic change, our species will survive another fifty years at most. If, however, human species could navigate a successful return to a horticultural society, they could potential persist for millennia.

He sees the widespread adoption of permaculture as a first step in a return to horticulture. Permaculture is an 80 year old branch of ecological design that produces sustainable buildings and self-maintained food production systems by modeling them on natural ecosystems. The movement already has several million adherents worldwide, through the Transition Town and comparable relocalization movements.

photo credit: London Permaculture via photopin cc