Desertification can be slowed or stopped by protecting the native plants in the area, slowing or stopping land use that leads to erosion, and careful use of land for grazing rather than farming. Desertification is most frequently caused by overuse of water resources in an area, combined with the removal of plant matter. Plants are essential to preventing desertification, as they hold the fertile top soil in place.Continue Reading
Desertification is easier to slow down and prevent than it is to reverse. Some methods of reversal of desertification involve replanting of specific species and the establishment of seed banks to make sure that plants native to the region survive. In areas that have undergone massive deforestation, replanting of trees helps reduce desertification. However, prevention of deforestation is much more effective, as reforested areas frequently have lower biodiversity and are less robust.
One interesting method for slowing desertification involves livestock management. This method has been championed by Allan Savory and involves the use of livestock to rehabilitate the land. In short, during the dry season in areas prone to desertification, the plant matter and grasses tend to dry out and die. Allowing these plants to be eaten by grazing animals keeps them from blocking sunlight and preventing new grasses from growing in their place after the next rainfall.Learn more about Environmental Science
Desertification causes a high-risk of crop failure, low economic returns on crops, a build-up of salt in the soil and the accidental burning of semiarid vegetation. This process turns usable desert land into unusable land due to poor land management.Full Answer >
In addition to overtaking and replacing native plants in an ecosystem, kudzu can alter the nitrogen balance of the soil and release dangerous ozone into the atmosphere. The vines also release volatile organic compounds into the air that can exacerbate smog when combined with other particulate pollutants. Kudzu's root systems can also drain an ecosystem of available water, leaving the few plants that survive its presence parched and dying.Full Answer >
The benefits of intensive crop farming are high crop yields, a reduction in the price of farm produce and use of less land. Intensive crop farming is very economical. Furthermore, the Environmental Protection Agency has rules that farmers must follow, making this type of farming healthy and safe.Full Answer >
Carbon dioxide contributes significantly to global warming by entering the atmosphere and waterways through many human activities, such as farming, industrial operations and changes in land use, primarily to agricultural production. Carbon dioxide occurs naturally through some activities, such as plant respiration, volcanic activities and the interaction between oceanic waters and the surrounding air. However, human activities increase the amount of carbon dioxide in the air, which in turn offsets the delicate balance of gases in the atmosphere and air temperature.Full Answer >