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Widespread loss of intermediate soil horizons in urban landscapes [Sustainability Science]

As societies move toward nature-based infrastructure to provide ecosystem services for sustainable urban environmental management, knowledge of urban soils remains a critical gap. An 11-city comparison of urban to reference preurban soil profiles revealed how urbanization modifies the presence and ordering of soil layers and its properties. Urban soils had fewer horizons than their preurban counterparts, with a predominant absence of intermediate B horizons. The loss of B horizons, which are not easily replaced, as they form over decades to millennia, can affect ecosystem functions, with potentially wide-ranging consequences for ecosystem services in cities.

Authors:   Dustin L. Herrmann; Laura A. Schifman; William D. Shuster
Journal:   Proceedings of the National Academy of Sciences current issue
Volume:   115
edition:   26
Year:   2018
Pages:   6751
DOI:   10.1073/pnas.1800305115
Publication date:   26-Jun-2018
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