Not every biosphere that Man has entered was destined for agriculture. Agriculture is a fairly recent invention and was never, I don’t think, part of Nature’s design. Plants and animals evolved symbiotically according to what Nature provided in the way of soil nutrients and climate. I think there’s plenty of evidence to suggest that when Nature became unbalanced to the point where an organism – I’m guessing, soil biota followed by plants – failed, then the other organisms either died with it, or moved on, if they were ambulatory or airborne.
Humans stepped outside Nature’s game plan when they invented agriculture (primarily to protect themselves from the unpleasant aspects of her iron-fisted game rules). But it’s still Nature’s playing field.
When we domesticated livestock, we took those animals out of the game, too. Nomadic people followed their animals to fertility. Modern humans take their animals wherever they damn well please, then when the livestock fail to thrive (s)he blames the soil and the climate, or in the case of a horse owner, herself, and says that “agricultural” soils are declining. (That may be true, but…)
“Agricultural soils,” by modern civilization’s definition, includes places where such animals or man were never meant to abide. For instance, horses in a semi-rain forest.
Then, when the animals don’t thrive, the media cries, “The Sky is Falling! The Sky is Falling!”
Fertility – in this case meaning the ability to sustain the plants and animals that Barb Lee wants – is a function of rainfall, erosion, flood, freezing and thawing, microbial activity and a host of other things over which Barb Lee has limited or no control.
But being human, Barb Lee gazed out upon Dogpatch and said “Grass is plentiful, let there be horses and sheep.” Nature was chuckling up her sleeve and saying, “You are nuts and for your nuttiness you shall sacrifice to me, your flocks and your herds. I grow trees here, Stupid, not horses and sheep.”
We live in a high rainfall area, averaging about 36” that weeps along at a dreary rate about 8 months out of the year, with fairly droughty summers. Albrecht identifies the cutoff for soil “development” at around 25” per year. Above that, development becomes destruction in the form of leaching. Below a certain level of rainfall (I don’t know what that is because it doesn’t affect me!), there is not enough rain to develop soils into fertile growing media for human agriculture.
Here in the west, of course, we take care of the problem of producing crops on the desert with irrigation and N-P-K.
The Midwest soils that grew the vast prairies of nutritious grass for migrating herds were, or are in a moderate rainfall pattern for the most part, with replenishing minerals sweeping in from the arid west on the wind. The herds of bison were creators of fertility for their own purposes through their “herd effect,” which can be read about in Allan Savory’s “Holistic Management.”
When Europeans arrived and discovered the vastness of the fertility, (as opposed to the highly developed soils where they landed that “only yielded a few turkeys”) they abandoned many of their traditions of soil husbandry and simply pushed on as they used up the fertility and pursued the seemingly endless supply further west.
Then of course we started moving into areas that weren’t so fertile. Livestock industries sprang up according to their ability to sustain certain classes of stock. Cattle could be reared on the vast arid west, but the job of finishing cattle, and of raising hogs etc., centralized in parts of the country where the land could sustain that sort of activity.
As we move farther and farther away from following the animals to fertility instead of taking them with us because we prefer to live in Florida instead of Iowa, we’ve suddenly realized we’ve painted ourselves into a corner. We have taken our animals into parts of the world that have no more ability to sustain them than trying to grow salmon in the swimming pool. It just doesn’t make sense.
Grass – no matter which variety – is only fit animal food if it’s grown in an environment that is conducive to filling its potential as animal food. I can grow a citrus tree in a pot indoors, but I cannot grow it in the outdoors of Northwest Oregon. I have to manipulate its environment artificially. Fortunately grass does grow here even as it grows in a crack in the asphalt. But only if I provide the missing elements that have washed out, cropped out or were never here in the first place, will I be able grow grass that is actually “animal food.”
Here in Dogpatch (that was the name we gave this place when we first bought it as a prospective non-garbage dump) I can manipulate the mineral balance to favor the production of animal food – grass. But it must be borne in mind that there is little likelihood that Dogpatch ever was a place to raise domestic livestock in the first place. It’s true that we had a hand in the decline of the pasture fertility according to Barb’s Activities, but the place would have still produced perfectly good timber. Nature still runs the game. And if I didn’t “get it” she’d eventually run me off her property by continuing to kill all my livestock and replant the place with Douglas fir, blackberry, Scotch broom and hawthorn again (most by the way, are invasive species).
For me to stay here in the forest and continue to maintain my grassland livestock, I have to bend the definition of “fertility” to conform to the needs of the grass plants and livestock with which I have replaced the trees. In doing so, I also must accept responsibility for having displaced the community that would have lived in and below the trees. It’s not good enough to say that the forest was cleared 100 years ago so I am not responsible for the disruption in the native ecosystem. I am just perpetuating the arrogance (or ignorance) of my predecessors, who tried to either grow dairy cows (there was a dairy barn on the edge of the cliff across the street, so there must have been enough nutrition in the grass to support a generation or so of farmers) or whatever, and eventually gave up and left the land to the exurbs who wanted to have a pony for the kids. All the ponies have EMS now.
There’s no doubt that historically fertile agricultural soils are declining, but I refuse to believe that the volcanic sand and ash of Central Oregon which under irrigation, produces much of the hay for western Oregon horses, is sufficiently “developed” to consistently deliver complete nutrition, although it is likely more highly mineralized than western Oregon leached soils. Western Oregon’s Willamette Valley, its “breadbasket” was subjected to repeated 400 ft. deep floods during the Ice Age, when ice dams on the Columbia River (deep and wide enough for ocean going vessels in the lower stretch) broke free and deposited soils and minerals from all over the west. But that was 10,000 years ago. Lots of agriculture and irrigation have taken place since then. And fire.
My understanding is that native Man used fire to maintain the western Oregon grasslands for abundant game. When Lewis and Clark slogged through this part of Oregon, 200 ft. above the reach of the “Missoula Floods”, the timber was so dense they nearly starved to death for lack of game.
So take heart. Your existence on this earth is not entirely the cause of declining fertility. What the media is failing to tell you is that much of agriculture is happening in the wrong place to begin with, and no thought is being given to put into the soil what the crop needs to take out in order to become nutritious food, only that which produces tonnage. If you have control over your food source, Albrecht has a blueprint for banking up the minerals that will assure its nutritional service to you and your animals.
The main thing to keep in mind is that you are not “fixing a problem,” you’re likely only bending the environment to suit your needs. If you were a Cro Magnon or a bison, you’d have simply moved on.