20140402

Author : Koerner, B. Klopatek, J.
Year : 2002
Title : Anthropogenic and natural CO2 emission sources in an arid urban environment
Journal : Environmental Pollution
Comment : They measured the soil CO2 efflux on native desert and human maintained landscapes such as golf courses, landfills, mesic and xeric landscapes, and cotton, alfalfa, and citrus agricultural sites. Humans and automobile activity produced more than 80% input of CO2 into the urban environment. Soil CO2 efflux from the natural desert ecosystems showed minimal emissions during hot and dry periods, but responded rapidly to moisture. Conversely, human maintained vegetation types (e.g. golf courses, lawns, irrigated agriculture) have greater efflux and are both temperature and soil moisture dependent.

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