Data publication: Plant data of the Horizon 2020 project NEXT

2026-07-28T13:53:32Z https://rodare.hzdr.de/oai2d

oai:rodare.hzdr.de:4073 2025-11-17T17:49:15Z openaire_data user-energy user-rodare

true 3.1 HZDR.RODARE 10.14278/rodare.4073 Pospiech, Solveig 0000-0003-2727-2375 HZDR Middleton, Maarit 0000-0002-9117-7690 Geological Survey of Finland: Rovaniemi, FI Data publication: Plant data of the Horizon 2020 project NEXT Rodare 2025 data plant Finland geochemistry exploration NEXT 2025-11-04 https://rodare.hzdr.de/record/4073 10.3030/776804 https://www.hzdr.de/publications/Publ-42138 https://www.hzdr.de/publications/Publ-42237 10.14278/rodare.4072 https://rodare.hzdr.de/communities/energy https://rodare.hzdr.de/communities/rodare 1 Creative Commons Attribution 4.0 International Open Access Plant‑Soil Chemistry Dataset (Raja 2019 Field Campaign) ## 1. Overview   This repository contains the **final, cleaned chemistry data** that were produced from the 2019 Raja field campaign.   The data combine: * Plant tissue concentrations (leaf, bark, needles, …) for a set of selected elements.   * Corresponding soil‑till depth, point location, lithology and basic tree information.   * Element‑specific relative‑standard‑deviation (RSD) uncertainties that were calculated from laboratory‑derived uncertainty parameters. All files are provided in **CSV** format (UTF‑8, `,` separator) and/or the R programming language binary format RData. *The exact set of tissue files depends on the species/plant‑parts that were sampled; the naming convention is `pl` + lower‑case abbreviation of the tissue (generated by `abbreviate(Plant, minlength = 2)` + `PlantPart`).* --- ## 2. Column description (common to all tables) | Column | Meaning | Type | |--------|---------|------| | `PointID` | Unique identifier for the sampling point (e.g., `NEXT‑2019‑257`). | character | | `X` / `Y` | Projected coordinates (Easting / Northing, EPSG 3067). | numeric | | `Plant` | Species name (full). | character | | `PlantPart` | Plant part sampled (`Leaf`, `Bark`, `Fruit`, …). | character | | `Tissue` | Short code: `<abbr> <PlantPart>` (e.g., `Ac Leaf`). | character | | `Lithology_updated_Sol` | Detailed lithology description from field notes. | character | | `Lith_simpl` | Simplified lithology (e.g., `Mafic rocks`). | character | | `TillDepth_cm` | Soil till depth at the point (cm). | numeric | | **Element columns** (e.g. `Al`, `As`, `Ca`, …) | Measured concentration **or** relative uncertainty, depending on the file (see below). | numeric | | `Tissue` (re‑appears) | Same as above – kept for convenience. | character | ### 2.1. Concentration vs. Uncertainty tables   * **`Plant_all_final.csv`** – contains **concentrations** (units as reported by the laboratory, typically mg kg⁻¹).   * **`Plant_uncensored_raw.RData`** – contains the very original, untreated data.   * **`*_uncertainty*.csv`**  – the element columns have been **replaced by their relative standard deviation (RSD)**, i.e. a unit‑less proportion (`0.12` = 12 % RSD).   If you need both concentration **and** uncertainty for a given point, use the two files together (join on `PointID`). --- ## 3. Usage notes   * **Joining concentration & uncertainty** – the two CSVs 'plant' and 'plant_uncertainty' share the same column order and can be merged on `PointID`.   * **Missing values** – `NA` indicates either a non‑detected element or that no uncertainty parameter was available for that element.   * **Spatial reference** – coordinates are in **ETRS89 / Lantmäteriet 3006 (EPSG 3067)**, suitable for Swedish national mapping.   * **Element selection** – in the subdatasets not every element is present in every tissue file; only the elements that passed the QC selection criteria are kept.