1 a person who acquires goods and services for his or her own personal needs. Compare â producer â 6. 2 a person or thing that consumes. 3 usually pl (Ecology) an organism, esp. an animal, within a community that feeds upon plants or other animals.
Characterization of a Sandy Soil by Three Sampling Methods 365. The challenge in defining the variability in the soil is not only how to define these. natural bodies, but also how to quantify the constituents within the soil.
The soil pH is a measure of the acidity or alkalinity in soils. pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H 3O+ aq) in a solution. In water, it normally ranges from -1 to 14, with 7 being neutral. A pH below 7 is acidic and above 7 is alkaline.