efÂ·fort. n. 1. The use of physical or mental energy to do something; exertion. 2. A difficult exertion of strength or will: It was an effort to get up. 3. A usually earnest attempt: Make an effort to arrive promptly. 4. Something done or produced through exertion; an achievement: a play that was his finest effort.
A second way to estimate the cost of the soil erosion is by estimating the impact of soil erosion on yield. The analysis is similar to the CSR analysis, but the difference in yield is the measure of the impact of erosion. This analysis includes continuous corn and a corn/soybean rotation.t this rate, the range in cost to the land owner per acre per year would be from $2.75 to $6.45 an acre. There is considerable difference between soils and counties with respect to the loss in value caused by erosion.
Professor Goldman estimates that the cost of controlling air and water and solid waste pollution will be between $130 and $180 billion in construction costs, and will involve between $12 and $17 billion in annual operating costs.