"Estimating Impacts of Population Growth on Ecosystem Services for the Community of Albemarle County and Charlottesville, VA," produced by Advocates for Sustainable Albemarle Population, as far is known, is the first such study ever undertaken to examine the effects of a community's projected growth on its ecosystem services, and to suggest projected population sizes at which essential ecosystem services are threatened or impaired.
This research examined the effects of local population increases on a selection of ecosystem services, including water and air related services
Excerpt: "At a 50% increase in population, services within the developing sub-study areas begin to decline markedly. Up to a 125% population increase, degradation of ecosystem services is contained within the developing sub-study areas; as population exceeds this threshold degradation becomes widespread, impacting all of the rural areas. It is important to emphasize that ecosystem degradation occurs unevenly across the study area. While ecosystem services at the level of the entire study area appear to be sustainable up to a 125% population increase due to the continued functioning of the rural areas, this masks the degradation that is occurring in the developing areas.
"The results of this . . . study clearly indicate that if growth continues, planners will have to balance the needs of the human population with local ecosystem health. We note that while careful development can continue in the short term, it clearly cannot be sustained forever without sacrificing important ecosystem services.
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