MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
Soil sampling. Lorenzo Frizzera, a scientist at the Centre of Alpine Ecology, taking a soil core. The core can be analysed for nutrients and pollutant levels. Cores can also provide historical data, the further down a core is bored the further back in time the soil was on the surface. Photographed in Trento, Italy.
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