Coined in 1930, the word ecosystem means all the physical and biological components of an environment. It includes all the organisms living in an area, along with all the non-living physical components that interact with organisms, such as air, soil, water and sunlight.
Among the kingdoms of life – animal, plant, fungi, protist and bacteria – the city’s Plant Kingdom is stunningly diverse for a city that is so comprehensively and densely developed.
Additional Information for Our Ecology
San Francisco is habitat for 800,000 people – meeting needs for space to work, play, and learn; for food, water, and air; for community with local flora and fauna. SF Environment provides support for urban agriculture and forestry and green buildings, helping residents and businesses harness environmental opportunities.