These files are part of the LIFE+ PROGNOSES project. More information about the project can be found on the website (https://lifeprognoses.eu/). The main datafile is PROGNOSES_organiclayer_data.csv. This file contains the data of the organic layer samples collected in the field. Accompanying files are: PROGNOSES_organiclayer_metadata.csv: explains the variables of PROGNOSES_organiclayer_data.csv PROGNOSES_organiclayer_README.txt: explains the project context, linkage to other files, data re-use Disclaimer [adapted from Desmet P, Brosens D, Du Seuil D, Goossens B (2014) INBO norms for data use. Research Institute for Nature and Forest (INBO). http://www.inbo.be/en/norms-for-data-use] Cite your data sources. The researchers and technical personnel have invested a lot of time and effort in collecting, managing, and publishing the data you are using. They deserve credit for their work. Do not use the data in any way that is unlawful, harmful, or misleading. Understand that the datasets may be subject to change, errors, and sampling bias. Read the metadata to better understand the scope and original intent of the dataset, thus reducing the risk of misinterpreting the data.