Adjusted bulk density data in the Hungarian Soil Information and Monitoring System
Authors/Creators
- 1. Institute for Soil Sciences, HUN-REN Centre for Agricultural Research, Budapest, Hungary
Description
This dataset provides corrected bulk density (BD) values and their associated uncertainty estimates for 4,340 soil genetic horizons across 1,236 monitoring sites of the Hungarian Soil Information and Monitoring System. The correction was achieved by developing a pedotransfer function (PTF) based on the Hungarian Detailed Soil Hydro-physical Database (Hungarian acronym: MARTHA) and advanced machine learning algorithms. Soil properties (i.e., soil organic carbon, pH in water, and sand, silt, and clay content) together with environmental covariates, used as proxies for the soil forming factors, were integrated into the PTF development to improve predictive performance.
Uncertainty of the BD predictions is provided in two forms: (1) the 90% prediction interval (defined by its lower and upper limits, within which the true value is expected to occur nine times out of ten), and (2) the standard error of the corrected BD values. To ensure transparency, reproducibility, and open access, the corrected BD values, their corresponding uncertainty estimates, and the developed code are publicly available.
For more details / to cite this dataset please use:
Codes are available on GitHub:
https://github.com/Mehrsoh/Soil-BD-Correction
Description of the files:
Two versions of the same dataset are provided, differing only in file format: (1) "HUN-SIMS_BD_corrected.csv" – CSV format (separated by semicolon), and (2) "HUN-SIMS_BD_corrected.xlsx" – Microsoft Excel format. The table below summarizes the column names, units, and data formats, and also provides a description for each column. Note that the coordinate reference system is the Hungarian Unified National Projection System (HD72/EOV; EPSG: 23700). For more details, see https://epsg.io/23700.
|
Column name |
Format |
Unit |
Description |
|
PROFILE_ID |
string |
- |
Identifier of monitoring sites in the Hungarian Soil Information and Monitoring System |
|
LAYER_ID |
string |
- |
Identifier of soil genetic horizons at a monitoring site |
|
X |
numeric |
[m] |
X coordinate |
|
Y |
numeric |
[m] |
Y coordinate |
|
TOP |
numeric |
[cm] |
Upper depth boundary of soil genetic horizons |
|
BOTTOM |
numeric |
[cm] |
Lower depth boundary of soil genetic horizons |
|
BD_CORRECTED |
numeric |
[g·cm-3] |
Bias-corrected bulk density value |
|
Q_05 |
numeric |
[g·cm-3] |
5th quantile; lower limit of the 90% prediction interval |
|
Q_95 |
numeric |
[g·cm-3] |
95th quantile; upper limit of the 90% prediction interval |
|
SE |
numeric |
[g·cm-3] |
Standard error of the bias-corrected bulk density value |
Files
HUN-SIMS_BD_corrected.csv
Files
(543.9 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:00f2fe794f5c68117fa6fe07afa649b0
|
235.2 kB | Preview Download |
|
md5:8cbc630224c8622a53d0debfcbad0185
|
308.7 kB | Download |
Additional details
Additional titles
- Translated title
- Korrigált térfogattömeg adatok a Talajvédelmi Információs és Monitoring Rendszerben (TIM)
Funding
- National Research, Development and Innovation Office
- Digital mapping and assessment of soil functions and services using advanced statistical approaches FK-146391
- National Research, Development and Innovation Office
- Identifying opportunities to expand the potential and improve the performance of digital soil mapping at various scales to support soil security ADVANCED 150160
- National Research, Development and Innovation Office
- Development of new soil structure indicators to characterize the hydrophysical effects of soil degradation processes K-134563
- Hungarian Academy of Sciences
- János Bolyai Research Scholarship BO/00437/22