Reduce Soil Pollution
Arable land is turning to desert and becoming
non-arable at ever-increasing rates, due largely in part to
global warming
and
agricultural fertilizers and pesticides, lessening the hope that we can feed
our booming population.
Within 40 years, there will be over 2 billion more people, which is the equivalent of adding another China and India.
Food production will have to increase at least 40% and most of that will have to be grown on the fertile soils that cover just 11% of the global land surface. However, there is little new land that can be brought into production and existing land is being lost and degraded. The
United Nations Food and Agricultural Organization states
that annually, 75 billion tons of soil, the equivalent of nearly 10 million hectares, which is about 25 million acres, of arable land is lost to erosion, water-logging and salination and another 20 million hectares is abandoned because its soil quality has been degraded.
Contact with contaminated soil
may be direct, from using parks, schools etc., or indirect by inhaling soil contaminants which have vaporized or through the
consumption ofplants or animals that have accumulated large amounts of soil pollutants, and may also result from secondary contamination of water supplies and from deposition of air contaminants. One by one, we can make a difference to help purify soils and restore balance to once fertile grounds, including your own backyard or farm.
Learn more.
Why Reduce Soil Pollution?
“Both the human immune system and the plant immune system are fundamentally interdependent on the quality and fertility of the soil. Our immune system, and even our physical structure, are a reflection of the foods we have eaten from either toxic and nutrient depleted soils, or wonderfully fertile soils.” ~ Eryn Paige
Avoid Intensive Farming Practices, such as over-cropping and over-grazing, as it leads to flood and soil erosion and further deterioration of the soil layer. Learn more.
Reduce Your 'Waste Footprint' - Waste, such as plastic, non-biodegradable materials and litter, can accumulate in fertile land, polluting and altering the chemical and biological properties of soil. According to the Clean Air Council, almost one-third of the waste in the U.S. comes from packaging - try to purchase materials with the least amount of packaging and always Reduce, Reuse and Recycle! Learn How To Reduce Your Waste
Discover Soil Washing, which uses water to remove contaminants from soils b y “scrubbing” soil to remove and separate the portion of the soil that is most polluted. Soil washing reduces the amount of soil needing further cleanup and is typically used along with other methods to clean up the soil as it is usually not sufficient enough to do the job alone. Soil washing allows the clean-up of polluted soil in place without having to excavate. Discover the EPA's 'A Citizen's Guide to Soil Washing'
Discover Bioremediation - Use and incite the growth of naturally-occurring microorganisms to break down contaminants and remediate soil pollution by using them as a food source during the aerobic processes, which requires the right temperature, nutrients and amount of oxygen in the soil. Discover the EPA's 'A Citizen's Guide to Bioremediation'
NSW: EPA - Reducing Soil Erosion with Compost Materials
Nitrogen and phosphorus pollution, stemming mainly from agricultural processes, is the primary source of damage to coastal waters in the U.S. and has created an oxygen-depleted "dead-zone" in the Gulf of Mexico. This 7,700 square mile section of water, which is an area approximately the size of New Jersey, is now devoid of aquatic life. In the U.S., approximately 40% of all chemical fertilizers applied to fields eventually changes into ammonia and is released into the atmosphere. Learn more.
- Use Soil Additives, such as lime and organic matter from composting, which can adjust soil pH to sustainable levels and reduce soil erosion and pollution. Learn more.
"The earth neither grows old or wears out if it is dunged." ~ Columella, circa 45 A.D, the most important writer on agriculture of the Roman empire *dunged = composted
Maintain a Vegetation Cover especially in the vulnerable areas, such as steep slopes and arid areas. Many studies have shown that in a wide range of environments, both runoff and sediment loss decrease exponentially with an increasing percentage of vegetation cover, also known as plant or tree cover. Forest vegetation significantly reduces summer soil surface temperatures and a vegetation cover of 45-50% effectively protects soils from raindrop impact and significantly reduces soil erosion.
Learn to Compost - Composting is nature's process of recycling decomposed organic materials into rich soil known as compost. There are many reasons to compost and various types of composting. Composting commonly comes in the form of vegetable compost and animal manure compost. Mix in earthworms when possible to help remediate the waste, remove toxic heavy metals, break down the organic matter and leave richer soil. Not sure where to buy composts? Directions on how to compost here. Keep your kitchen scraps from vegetables, fruits, coffee grounds etc. in a composting bin or container. You can use this to add a compost site to your garden or add to your garden to create deeper topsoil, recycle nutrients, and save landfill space and reduce water and soil pollution.
For Farming, Maintain Your Livestock Grazing Rate to Prevent Overgrazing. "Controlled grazing or management-intensive grazing (MIG, also known as rotational grazing) can be adopted to check unlimited access of animals to pastures and also to manage the grazing land effectively." ~ WWF Learn more.
Use Crop Rotation in Cultivation Areas - According to Pesticide Action Center Europe, to prevent the soil from becoming exhausted to help create a biodiverse soil, which reduces the chance of soil bound organisms to get a pest, reduces the use of pesticides, helps minimize the growth of weeds and helps form a good soil structure that can result in a higher yield. Crop rotation performed with nitrogen-fixating rotation crops will reduce the input of fertilizers and, consequently, the pollution by nitrogen. Crop rotation combined with conservation tillage will lead to higher soil-carbon content, which helps combat climate change and soil erosion. Discover Crop Rotation
Reduce the
Use of
Chemical
Pesticides,
Fertilizers,
Insecticides and
Weedicides,
whose overuse leads to soil pollution. These harsh chemicals may kill the intended weeds or insects that can damage and stunt the proper growth of the plant, but they are not easily broken down, accumulate in the soil, can be responsible for depleting the fertility of the soil and can be a threat not only to the plants, but also to the animals and humans consuming it. When these chemicals are used in the soil, the non-degradable metals that accompany the essential nutrients slowly begin to amass in the soil above preferred toxic levels, such as the notorious, damaging phosphate fertilizers. To give plants the nutrients they need for growth, while protecting the health and longevity of the soil, you should choose low-phosphorus fertilizers, try
making your own organic fertilizer using a compost bin,
or simply purchase organic fertilizers, which are harmless to nature and nourish the soil, unlike chemical fertilizers. Try to avoid pesticides as much as possible. Instead,
try using organic pesticides, which help control pests without damaging the environment.
Issues With Pesticides
Visit Sustainable Table and explore how to ask your local farmer about the erosion prevention techniques and nutrient management methods used on his or her farm. Visit, Learn and Ask
Purchase USDA Certified Organic Products, which must be produced without the use of synthetic fertilizers, along with many other benefits. Learn more | See also
Use the Eat Well Guide to find sustainable meats and produce at stores, farms and restaurants. Discover the Eat Well Guide
Eliminate Weeds, which absorb the necessary minerals out of the soil. Eliminating weed growth can decrease soil pollution to a great extent. A common method of reducing weed growth is to prevent light from reaching the weeds in order to kill them by covering the soil with numerous layers of wet newspapers or a plastic sheet for several weeks before cultivation. Learn more.
Visit Sustainable Table and explore how to ask your local farmer about the erosion prevention techniques and nutrient management methods used on his or her farm. Visit, Learn and Ask
Purchase USDA Certified Organic Products, which must be produced without the use of synthetic fertilizers, along with many other benefits. Learn more | See also
Use the Eat Well Guide to find sustainable meats and produce at stores, farms and restaurants. Discover the Eat Well Guide
Eliminate Weeds, which absorb the necessary minerals out of the soil. Eliminating weed growth can decrease soil pollution to a great extent. A common method of reducing weed growth is to prevent light from reaching the weeds in order to kill them by covering the soil with numerous layers of wet newspapers or a plastic sheet for several weeks before cultivation. Learn more.