An interconnected network of protected land and water that supports native species, maintains natural ecological processes, sustains air and water resources and contributes to the health and quality of life for America's communities and people. Also refers to a strategic approach to conservation that addresses the ecological, social and economics impacts of sprawl and the accelerated consumption and fragmentation of open land.

Our natural life support system - an interconnected network of waterways, wetlands, woodlands, wildlife habitats, and other natural areas; greenways, parks, and other conservation lands; working farms, ranches and forests; and wilderness and other open spaces that support native species, maintain natural ecological processes, sustain air and water resources and contribute to the health and quality of life for communities and people. Green infrastructure's components include a variety of natural and restored ecosystems and landscape features that make up a system of "hubs" and "links". Hubs anchor green infrastructure networks, providing origins and destinations for the wildlife and ecological processes moving to or through them. Links are the connections tying the system together and enabling green infrastructure networks to work. Hubs and links range in size, function, and ownership.

An interconnected web of green space that conserves natural ecosystem values and functions and provides associated benefits to human populations.

An open framework of services, based on natural systems and including natural habitats, landforms, aquifers and recharge areas, heritage landscapes, parks, trails and archeological sites.

A strategically planned and managed network of parks, greenways, conservation easements, and working lands with conservation value that supports native species, maintains natural ecological processes, sustains air and water resources, and contributes to the health and quality of life for communities and people.

A county-specified classification of the environment in a related, predominantly natural system of environmental, natural and heritage resources, open space assets and complementary elements that serves as the underlying structure for general land use, planning, development and redevelopment in the county. It provides the context in which the built environment relates to the natural environment, and guides where and how development and redevelopment is to occur.