Monitor long term soil productivity, expressed as the land's ability to sustain life as well as agriculture. (dotearth.blogs.nytimes.com)
The authors concluded that the organic agriculture system was more effective than the conventional agriculture system in reducing soil erosion and in maintaining soil productivity. (fao.org)
The length of time that the soil is exposed to erosive forces is decreased, soil biodiversity is increased, and nutrient losses are reduced, helping to maintain and enhance soil productivity. (ifoam.bio)