How Healthy Soils Keep our Water Clean
At Tech Terra, we understand that the foundation of growing healthy plants is healthy soil. And healthy soils also provide all of us with our other benefits such as the ability to keep our water clean."

Check out what's new from IYS (International Year of Soils) this month below!

Watch this Video

"Soils Clean and Capture Water"

Soil is a great water purifier! Soils clean water through physical, chemical and biological systems. We need to find more ways to allow soil to provide this basic service to us, so we can keep our environment, and ourselves, healthier. Download our April Soils Clean and Capture Water video - it's also excellent for use in classrooms and any other event/activity that will benefit from video! 

You can also view it directly
on YouTube.


Take a Picture!

Take a picture of your school with an "I Heart Soil" sticker and load it on our map! 

We're capturing photos from around the globe on our I Heart Soil map. 

Note that if there are any people in it we'll need each person's permission to post it and if there is anyone under the age of 18, we'll need a parent/guardian's permission.

Need an I Heart Soil image?
Download it in any of 15 languages. View the map here.

Quick Facts on the IYS April's Theme

According to April's IYS monthly leader Gary Pierzynski, "Soil is a great water purifier. There are three ways that soil cleans water: physical, chemical and biological." Here are some facts from Pierzynski, a soil science professor at Kansas State University.
  • Physical: The particles of soil act like a filter. The ideal soil has a distribution of pore sizes so it can filter water, while also allowing the water to pass through the soil.
  • Chemical: Soil particles have a negative charge! That means that positive ions like calcium, magnesium and potassium can all be removed from passing water and retained by the soil. This is good, because each of these ions is a nutrient for plants! Some contaminants can be removed by this mechanism as well.
  • Biological: Soil is the largest bioreactor on the planet. Within the soil, bacteria and fungi transform and decompose certain chemicals. Soil microbes can change organic forms of nitrogen into ammonium ions-and even into nitrogen gas. They can also decompose some organic pollutants!