Root systems refer to the complex network of living and non-living elements that a plant uses to anchor itself to the ground, transport water and nutrients, and build the foundation of a healthy and stable ecosystem. Root systems are essential for helping plants survive in a variety of environments and for overall ecological health - by helping to keep soil in place and increasing the absorption of water and nutrients, beneficial microbes, and providing habitats for a range of organisms. In addition, root systems are an important source of energy and nutrients for a variety of other species and contribute to the overall sustainable balance of energy, nutrients, and biodiversity in any given ecosystem.

See also: mycorrhizal system, soil, fungi, ecosystem