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Global Soil Organic Carbon Map

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This presentation was presented during the 1 Parallel session on Theme 1, Monitoring, mapping, measuring, reporting and verification (MRV) of SOC, of the Global Symposium on Soil Organic Carbon that took place in Rome 21-23 March 2017. The presentation was made by Mr. Rainer Baritz from FAO, in FAO Hq, Rome

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Global Soil Organic Carbon Map

  1. 1. Global Soil Organic Carbon Map Rainer Baritz Global Soil Partnership
  2. 2. Background  Request from the SPI-UNCCD to ITPS to prepare a Global Soil Organic Carbon map as a contribution to the SDG process (indicator 15.3.1).  Part of the ongoing activities to establish the Global Soil Information System under Pillar 4.  Need to empower member countries to develop their own national soil information using state of the art techniques/methods.  Crucial need to make SOC baseline available considering the dynamic nature of soils.
  3. 3. Where are SOC data needed? IPCC AR, GHG (MRV) (AFOLU), INDC, REDD+ FAO STAT (agro-env indicators and UN statistics), Agriculture productivity National Biodiversity Strategies and Action Plans (NBSAPs), Aichi Targets UNFCCC/IPCC UNCCD UNCBD/IPBES UN-FAOSTAT SDG (2.4, 15.2, 15.3) Rio+20 UN World Soil Charter Voluntary Guidelines for SSM Status of the World’s Soil Resources Report Global Soil information System and SoilSTAT LDN target setting National Action Programmes (NAPs) GSP
  4. 4. What is the current status of spatial information about SOC Harmonized World Soil Database (HWSD): mostly 1km, (some parts coarser), with soil properties from a separate (and patchy) global soil profile data set. ISRIC World Soil Profile data base Batjes (2009) Koechy et all. (2015)
  5. 5. SOC stock values [Pg] Depth [cm] 0-30 30-100 0-100 0-200 0-300 >100 Accuracy Batjes (1996) 1462-1548 2376-2456 WISE (4353 soil profiles) + DSMW Global Soil Data Task Group (2000) 1550 Jobbagy and Jackson (2000) 1502 1993 2344 2721 soil profiles grouped by biome Henry et al. (2009) 1598 2521 DSMW Henry et al. (2009) 1850 HWSD Hiederer et al. (2011) 1455 HWSD v1.1 Schlesinger (1997, 2013) 1500 2500 Scharlemann et al. (2014) 1461 (504-3000) Review of publications 1951 and 2011 Shangguan et al. (2014) 1455 230 cm: 1923 DSMW Koechy et al (2015) – HWSD 1062 adjusted BD for organic soils Koechy et al. (2015) final 1325 3000 Stockmann et al. (2016) Change 2001-2009, 1 km, 0-10 cm 63,503 soil profiles
  6. 6. Spatial information about SOC: new trends  New trends based on digital soil mapping: soil grids based on GlobalSoilMap.net specifications and ISRIC SoilGrids1km/250m  Soil depth curves  Spatial uncertainties SOC [‰], topsoil (0–5cm). 110,000 soil profiles: partly accessible through WorldSoilProfiles.org data portal
  7. 7. Progress at national level  Many recent national and regional SOC maps were developed; (at least ca. 70 publications from 50 countries), with improved national data bases and upscaling models Denmark 45,000 point samples (2,050, 34k) Poland 50,000 point samples (15,400, 247k) Slovakia 16,636 soil profiles (2,400, 39k) Examples for data used at national level: [4x4 km] [1 km2]
  8. 8. Global Soil Information System
  9. 9. GSOCmap: national SOC mapping  First test round of the Global Soil Information system following a bottom-up approach.
  10. 10. GSOC Map: National contact points and INSII Status March 2017
  11. 11. GSOC Map: Capacity development GSP Trainings
  12. 12. GSOCmap Specifications Guideline: detailed specifications 1 km grid (global raster) 0-30 cm, forest floor and peat <100 Metadata (input data, upscaling) Spatial mapping: conventional upscaling and DSM Uncertainties (quantitative, qualitative) Cookbook: detailed methods and working steps, especially data preparation and DSM
  13. 13. GSOCmap considerations  Coordination and review: Intergovernmental Technical Panel on Soils (ITPS)  Framework: International Network of Soil Information Institutions (INSII).  GSOCmap first product of the Global Soil Information System of the Global Soil Partnership  GSOCmap: first delivery 5th of December World Soil Day. 2020
  14. 14. GSOCmap is not just a map! It supports the development and empowerment of national capacities to build their National Soil Information Systems.

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