Soils are one of nature's most complex ecosystems
It has a variety of features
It filters, purifies and stores water
It ensures the circulation of substances through the decomposition of microorganisms
Plants and animals can use these substances non-stop
It purifies the air
It is the most important carbon reservoir that sustains the health of ecosystems
Soil is an important foundation for life
Any thriving natural or agro-ecosystem
It all starts with the soil
Its health is related to a sustainable future for humanity
Here's what you need to know to protect the soil environment!
What is soil pollution?
Soil pollution refers to the phenomenon that human factors cause certain substances to enter the surface soil of the land, causing changes in the chemical, physical, biological and other characteristics of the soil, affecting the function and effective use of the soil, endangering public health or damaging the ecological environment.
What are the characteristics of soil pollution?
01
Concealment and hysteresis
Soil contamination is often determined through analytical testing of soil samples and residue testing of crops, or even through research on the effects on human and animal health.
02
Cumulative
Pollutant substances are not easy to diffuse and dilute in the soil, and are easy to exceed the standard due to continuous accumulation, so that soil pollution has a strong regional nature.
03
Irreversibility
Soil contamination by heavy metals is an irreversible process, and the contamination of many organic chemicals takes a long time to degrade. For example, it may take 100~200 years for soil contaminated by some heavy metals to recover.
04
Difficult to govern
The refractory pollutants accumulated in polluted soil are difficult to be eliminated by dilution and self-purification, and sometimes need to be solved by soil replacement and soil leaching.
What are the dangers of soil pollution?
Crops on agricultural land will absorb pollutants in the soil, resulting in excessive levels of pollutants in agricultural products, and long-term consumption of agricultural products exceeding the standard will threaten human health.
Residential, commercial and other construction land is a place where residents have more contact, and if the soil of these construction land is polluted, it will endanger the safety of the human living environment.
At the same time, soil pollutants may be transformed and migrated, and enter surface water, groundwater and atmospheric environment through infiltration and dust. These soil contaminants can be harmful to human health through oral ingestion, respiratory inhalation and skin contact.
What can we do to prevent soil pollution?
Buy more green pollution-free vegetables and fruits, and encourage manufacturers to reduce the use of chemical fertilizers and pesticides.
Reduce the use of single-use plastic products such as plastic bags, or use fully biodegradable bags that can be fully degraded, and bring your own eco-friendly bags when you go shopping.
Separate waste from old batteries, old electronics, expired medicines and skin care products, so that they can be properly disposed of and reduce the harm to the soil.
It is found that the surrounding soil emits peculiar smell, color change and other abnormal conditions, the soil is suspected to be polluted, and the sewage is secretly discharged into the soil...... This may be soil contamination, please call 12345 directly to report.
Business owners who produce and discharge pollutants strictly manage and control the discharge of industrial "three wastes" (waste water, waste gas, and waste residue), and shoulder social responsibilities.
Citizens engaged in agricultural production should use chemical fertilizers and pesticides rationally, use organic fertilizers, and do not discard agricultural films and pesticide packaging bags at will.
now
What soil means to people
It has expanded from simple food security to
Energy security, water security, biodiversity
Climate change, ecosystem services
and so on
Soil security will also become increasingly important
Humans can't live without soil
It's like a fish can't live without water
Let's work together to protect the soil
It is your responsibility to protect the soil