A major consequence of modern agricultural development has been agricultural development has been environmental degradation. As biodiversity is reduced due to specific crop fields, soils then lose much of their biota. Organisms such as Azotobacter and Beijerinckca indica are effective polysaccharide-producing microbes. These may provide indicators of soil potential. Soil organic matter can decrease for many reasons, one of which involves conventional tillage practices. Better soil management is necessary to increase microbial processes and soil fertility. More research is necessary to predict how soil type, climatic conditions, and management affect below ground microbial ecology in drylands.
The land is not just for the present, but also for future generations. The land is living and provides life for all creatures. If abused that life will soon end. Healthy soil contains humus, available minerals, bacteria, fungi, actinomycetes, earthworms, and many other organisms all working together to produce natural antibiotics and convey disease immunity to plants, animals and people. Earthworms alone will produce 18 to 30 tons of fertiliser per acre each year that is so perfectly balanced that humans cannot produce anything comparable to it.