Indicators are measurable properties of plants and soil. Measuring the amount of living organisms by counting and identifying what organisms are present. Measuring activity levels of living organisms. Measuring cellular components such as the amounts of biological carbon or nitrogen in the soil. These include tests of organic matter , pH , heavy metals, cation exchange capacity , and others.
Soil quality is important for two reasons.
First, using a soil improperly can damage it and the ecosystem, therefore we need to match our use and management of the land to the soil's capability. Second, we need to establish a baseline understanding about soil quality so that we can recognize changes as they develop. By using baselines to determine if soil quality is deteriorating, stable, or improving, we have a good indicator of the health of an ecosystem. The ultimate purpose of researching and assessing soil quality is to protect and improve long-term agricultural productivity, water quality, and habitats of all organisms including people. Factors that affect soil quality Sediment Deposition Sediment is solid material that is or has been transported from its site of origin by air, water, gravity, or ice to a field or low landscape position.