Sustainability
Definition
Sustainability is the ability of a growing system to maintain its productivity and environmental function indefinitely, without gradually depleting the soil, water, or biological resources it depends on to keep working. A sustainable system could theoretically continue producing at the same level for generations.
Why It Matters
A system can look productive today while quietly depleting the resources it needs to keep producing tomorrow. Sustainability is the test that catches this, asking not just how much a system produces now, but whether it can keep producing at that level without running down its own foundation.
How It Works
Sustainability is measured by whether key resources, soil organic matter, biology, water, are being maintained or built rather than depleted over time. A system built on practices that replenish these resources, like compost or worm castings for soil biology, tends to score well; one that relies on drawing them down does not.
Benefits
- Maintains productivity without resource depletion
- Provides a measurable outcome to evaluate practices against
- Reduces long-term risk from soil or water degradation
- Applies across organic, regenerative, and conventional systems
Evaluating a System's Sustainability
Sustainability is measured by trend, not a single snapshot in time.
Track Soil Organic Matter Over Time
Rising or stable organic matter suggests a system replenishing what it uses; declining organic matter signals depletion.
Watch Soil Biology Trends
A system that maintains or builds microbial diversity is drawing on a renewable resource; one that depletes it is drawing down something hard to replace.
Consider Water Resource Use
A system relying on unsustainable water extraction can't maintain productivity indefinitely, regardless of how well soil is managed.
Ask "Could This Continue for Decades?"
A useful sustainability gut-check: would this practice, applied every year for decades, still work as well as it does today?
Sustainability vs. Soil Stewardship
One is the outcome measure, the other is the mindset behind pursuing it.
| Sustainability | Soil Stewardship | |
|---|---|---|
| What it is | An outcome measure | A mindset and set of priorities |
| Measurable? | Yes, through resource trends over time | Not directly, reflected in the choices made |
| Scope | Soil, water, and biological resources together | Primarily focused on soil specifically |
| Relationship | Soil stewardship is a mindset that, applied consistently, tends to produce a sustainable system | |
Common Mistakes to Avoid
Sustainability claims often fall apart under scrutiny of what's actually being measured.
Frequently Asked Questions
What is sustainability in agriculture? +
How is sustainability different from soil stewardship? +
Can conventional farming be sustainable? +
How does soil biology relate to sustainability? +
Is sustainability the same as organic or regenerative? +
Can a home garden be sustainable? +
How does worm castings use support sustainability? +
Worm castings build soil organic matter and biology rather than drawing them down, supporting the kind of resource-replenishing system sustainability actually measures.









