Impact of climate change and human activity on soil landscapes over the past 12,300 years

Leo Rothacker*, Anthony Dosseto, Alexander Francke, Allan R. Chivas, Nathalie Vigier, Anna M. Kotarba-Morley, Davide Menozzi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
20 Downloads (Pure)

Abstract

Soils are key to ecosystems and human societies, and their critical importance requires a better understanding of how they evolve through time. However, identifying the role of natural climate change versus human activity (e.g. agriculture) on soil evolution is difficult. Here we show that for most of the past 12,300 years soil erosion and development were impacted differently by natural climate variability, as recorded by sediments deposited in Lake Dojran (Macedonia/Greece): short-lived (< 1,000 years) climatic shifts had no effect on soil development but impacted soil erosion. This decoupling disappeared between 3,500 and 3,100 years ago, when the sedimentary record suggests an unprecedented erosion event associated with the development of agriculture in the region. Our results show unambiguously how differently soils evolved under natural climate variability (between 12,300 and 3,500 years ago) and later in response to intensifying human impact. The transition from natural to anthropogenic landscape started just before, or at, the onset of the Greek 'Dark Ages' (~3,200 cal yr BP). This could represent the earliest recorded sign of a negative feedback between civilization and environmental impact, where the development of agriculture impacted soil resources, which in turn resulted in a slowdown of civilization expansion.

Original languageEnglish
Article number247
Pages (from-to)1-7
Number of pages7
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - 10 Jan 2018
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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