https://github.com/ncss-tech/gsp-gsn
Code and information for the GSP Global Soil Nutrient project
https://github.com/ncss-tech/gsp-gsn
Last synced: 2 months ago
JSON representation
Code and information for the GSP Global Soil Nutrient project
- Host: GitHub
- URL: https://github.com/ncss-tech/gsp-gsn
- Owner: ncss-tech
- License: gpl-3.0
- Created: 2023-08-15T18:55:40.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2024-11-27T15:09:39.000Z (over 1 year ago)
- Last Synced: 2025-03-02T12:33:39.057Z (over 1 year ago)
- Language: R
- Size: 73.5 MB
- Stars: 1
- Watchers: 6
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# gsp-gsn
Angelini ME, Rodriguez Lado L, Luotto I. 2023. GSNmap Training
Mapping soil nutrients and associated soil properties. [https://drive.google.com/drive/folders/1ZVcS78nuRCiFUXdIbAVyQ33eVIXvV3R2](https://drive.google.com/drive/folders/1ZVcS78nuRCiFUXdIbAVyQ33eVIXvV3R2)
FAO. 2022a. Technical Manual for Global Soil Nutrient and Nutrient Budgets map (GSNmap). Rome: FAO; [accessed 2022 Oct 14]. [https://fao-gsp.github.io/GSNmap-TM/](https://fao-sid.github.io/GSNmap-TM)
FAO. 2022b. FAO’s Global Soil Partnership kicks start a country-driven process to map soil nutrients and soil nutrient budgets at all scales. FAO Highlights. [https://www.fao.org/global-soil-partnership/resources/highlights/detail/en/c/1601502/](https://www.fao.org/global-soil-partnership/resources/highlights/detail/en/c/1601502/)
FAO. 2022c. Country guidelines and technical specifications for global soil nutrient and nutrient budget maps. Rome: FAO; [https://doi.org/10.4060/cc1717en](https://doi.org/10.4060/cc1717en)
# Mandatory products (from Tables 2, 3 FAO 2022c)
|Variable |Units |Method |Depth |Period |
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
|Total Nitrogen |ppm |Dumas dry combustion method (FAO, 2021a) or Kjeldahl method (FAO, 2021b) |0-30 cm |preferably 2017–2022 |
|Available Phosphorus |ppm |Bray I and II, Mehlich I, Olsen (FAO, 2021c; FAO, 2021d; FAO, 2021e) |0-30 cm |preferably 2017–2022 |
|Available Potassium |ppm |Mehlich III (Mehlich, 1984) |0-30 cm |preferable 2017–2022 |
|Cation exchange capacity |cmolc/kg |Ammonium acetate (Schollenberger and Simon, 1945) |0-30 cm |1980–2022 |
|pH | |Soil pH in H2O, KCl, CaCO2 (FAO, 2021f) |0-30 cm |1980–2022 |
|Clay (< 2 µm) |g/100g |Hydrometer (e.g. Bouyoucos, 1962) |0-30 cm | |
|Silt (2–20/50 µm) |g/100g |Hydrometer (e.g. Bouyoucos, 1962) |0-30 cm | |
|Sand (50–2000 µm) |g/100g |Hydrometer (e.g. Bouyoucos, 1962) |0-30 cm | |
|Soil organic carbon |% |Dumas dry combustion, Walkley-Black, Tyurin spectrophotometric (FAO,2019a; FAO,2019b; FAO, 2021g) |0-30 cm |preferably 2000–2022 |
|Bulk density |g/cmm3 |Overview of methods provided by Blake (1965) |0-30 cm | |