This person is my new best friend
Farming systems need to fit into their natural and social environment. Sometimes we describe this as a socio-ecological niche.
Caption;Ā
In a minute.
So, taking it that you said you live in Arizona and āyour family has a farm in Chihuahua,ā A quick congratulations are in order. Youāre an absentee landowner! Youāre right at the peak of farmingās social pyramid. Living the dream.
So you probably donāt participate in the day-to-day management, you just collect checks. Pretty common situation for absentee landlords. From that distance, itās understandable that you have a poor grasp on water, land, and how they play out in various types of agriculture.
But letās take a step back.
Lots of cultures have used low or no meat diets. The Ganges valley, ancient Egypt, China, much of early Europe, ect.
Notice anything in common there?
Theyāre all very, very wet. Plants that are edible for humans grow readily.
They also had intense hierarchies where elites could just tell the lower classes they werenāt allowed to eat meat-whether via religious teachings, custom, or just straight-up economic exploitation to where animal protein was unattainable. But thatās a whole different discussion.
On the other hand, lots of cultures have used mostly or all animal diets.
E.G. The Bedouin, Mongols, Maasai, Inuit, ect.
What do these have in common? Theyāre in places that are either very dry or very cold. Either the plants that grow are very sparse & tough, or none at all.
Humans can only digest specific types of plant matter. We need tender stems, leaves & fruit; enlarged seeds, or energy storing roots.
The entire rest of the plant is inedible for us. Stalk, branch, dry leaves, ect.
And without intense irrigation, the only plants that grow in dry areas are entirely made of things that humans canāt digest. Theyāre almost entirely cellulose. Tough stalks, fibrous leaves covered in wax and hair, thorns, ect.
Thatās why we call these areas āscrubā. The only use humans can make of the natural vegetation is to scrub pots.
Butā¦cows, sheep, goats, horses, bison, deer, camels & other ruminants can digest all of it.
Thatās what those 3 and 4 chambered stomachs are for. These animals GI tracts are fermentation chambers full of microflora that break long, tough cellulose molecules down into sugars and fatty acids that the cow can use.
We canāt do that. We eat straw, we just poop out straw.
Thatās why people living in deserts, scrub & dry grasslands arenāt vegetarian. Theyād starve. They kept close to the animals that can digest what grows there; ruminants.
(The oceanic food chain that Inuit & other maritime peoples are looped into is a whole ānother discussion.)
Failure to recognize the role of local environment in diet is a major oversight in the vegetarian community at large, so again, no personal blame here.
Traditional vegetarian societies are trotted out to showcase that low/no meat diets are possible. But itās done w/o recognition as to why āthose particularā societies did it, and others did not.
Paying attention to local environment is a huge part of sustainability, and yet sustainability movements donāt always do so well at that.
We can also fall short by failing to recognize that for dry regions, the bottleneck in productivity isnāt land, itās water.
As an absentee landowner, you may or may not be aware of how much irrigation water it takes to grow vegetables in a desert. Math time.
Letās start w. cows. Best figures for cow carrying capacity in landscape similar to Chihuahua are for dry part of CO. Double that for Chihuahuaās longer growing season, and 10 cows would need about 73 acres to live on (wild scrub w no irrigation.)
Cool, so we donāt have to irrigate to feed those cows. All we have to do is give them drinking water. How much? A cow needs about 18.5 gal/day, so 10 of them for a year would need about 67,000 gallons.
67,000 gallons is a decent amount of water.
Now letās look at how much it takes to grow vegetables on that same land.
Most plant crops need about an acre-inch of water per week.
For the non-farmers and absentee landlords following along, an acre-inch is just how much water it takes to cover an acre of land 1ā deep.
Itās about 27,000 gallons.
An acre of crops needs that every single week.
Chihuahuaās got this amazing long growing season. So letās say a veggie, grain, soybean or other plant protein farm in Chihuahuaās got crops in the ground 40 weeks out of the year.
73 acres x 40 weeks x 27,000 gallons/week = 79 MILLION gallons of water.
Thatās a thousand times more water.
It takes a thousand times more water to grow an acre of crops for human consumption, than it takes to grow an acre of cow on wild range.
Again, as an absentee farm owner you may or may not be aware already. But for audience at home, most of Chihuahuaās irrigation water comes from the Rio Conchos.
The riverās drying up so hard that itās the subject of a dedicated WWF preservation project.
āBut thatās not a fair comparison. An acre of crops can feed 10x as many people as an acre of cattle.ā
Exactly. A crop-only diet can feed 10x as many people. But it takes 1000x as much water.
In places where thereās limited land and a surplus of water, it makes a lot of sense to optimize for land, so there, grow & eat crops.
And in places where thereās a lot of land and limited water, it makes sense to optimize for water, So there, grow & eat ruminants.
Itās really interesting to me that the conversation around vegetarianism & the environment is so strongly centered on assumptions that every place in the world is on the limited land/surplus plan.
You know what region that describes really well? Northwestern Europe.
In many ways, viewing low/no meat diets as the One True Sustainable Way is very much a vestige of colonialism. It found a farmway that works really well in NW Europe, assumed it must be universal, and tries to apply it to places where it absolutely does not pencil out.













