Davies, Zoe G.2; Dallimer, Martin6; Edmondson, Jill L.4; Leake, Jonathan R.4; Gaston, Kevin J.5
1 Section for Environment and Natural Resources, Department of Food and Resource Economics, Faculty of Science, Københavns Universitet2 University of Kent3 Economics, politics and operational planning, Forest & Landscape Denmark, Faculty of Life Sciences, Københavns Universitet4 University of Sheffield5 University of Exeter6 Economics, politics and operational planning, Forest & Landscape Denmark, Faculty of Life Sciences, Københavns Universitet
Although urbanisation is a major cause of land-use change worldwide, towns and cities remain relatively understudied ecosystems. Research into urban ecosystem service provision is still an emerging field, yet evidence is accumulating rapidly to suggest that the biological carbon stores in cities are more substantial than previously assumed. However, as more vegetation carbon densities are derived, substantial variability between these estimates is becoming apparent. Here, we review procedural differences evident in the literature, which may be drivers of variation in carbon storage assessments. Additionally, we quantify the impact that some of these different approaches may have when extrapolating carbon figures derived from surveys up to a city-wide scale. To understand how/why carbon stocks vary within and between cities, researchers need to use more uniform methods to estimate stores and relate this quantitatively to standardised 'urbanisation' metrics, in order to facilitate comparisons.
Environmental Pollution, 2013, Vol 183, p. 133-142