PPT Slide
One way of defining soil health/quality is by what it is not - or looking at processes that degrade the condition of the soil for a variety of purposes. On a world-wide basis, and probably state-wide in Ohio as well, the biggest threat is the actual loss of soil or erosion. Organic matter levels across the midwest have declined since the introduction of cultivated agriculture. Poor drainage is a problem in many parts of Ohio and wet conditions frequently result in excessive compaction. Lowered pH, nutrient levels, and biological activity are other indications of degraded soil conditions.