The capacity of soil to regulate the terrestrial freshwater supply is a fundamental ecosystem service. Water percolating through soil is filtered, stored for plant utilization, and redistributed ...

Wetlands once made up 25 percent of Indiana. Many of these 5.6 million acres were located in the fertile farmground of northern Indiana. Early in the 19th century, landowners began using open ditches ...

This layer of the planet is where air, water, soil, rocks ... Earth's critical zone, extending from trees on the surface down to soil 700 feet underground, is home to several chemical and ...