24 Pages

Entries (A–Z)

Abiotic Nonbiological, nonliving portion of the ecosystem. Abiotic components include chemicals that are present in soil, water and air, solar radiation, and various aspects of climate. These are the counterpart of the biotic portions of the ecosystem. In ecosystems in nature, as well as in ecomimetic designs, both abiotic and biotic components are necessary to balance the ecosystem, and a change in one will affect the balance and diversity of the other.