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Global Soil Laboratory Network (GLOSOLAN) - Natalia Rodriguez

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The 21st World Congress of Soil Science
Rio de Janeiro, Brazil | 12 - 17 August 2018

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Global Soil Laboratory Network (GLOSOLAN) - Natalia Rodriguez

  1. 1. Global Soil Laboratory Network (GLOSOLAN) Natalia Rodríguez Eugenio
  2. 2. GSP Pillars of Action 1. Promote sustainable management of soil resources and improved global governance for soil protection and sustainable productivity; 2. Encourage investment, technical cooperation, policy, education, awareness and extension in soils; 3. Promote targeted soil research development focusing on identified gaps, priorities and synergies among economic, environmental and social dimensions; 4. Enhance the quality and availability of soil data and information: collection, analysis, validation, reporting, monitoring, integration with other disciplines; 5. Harmonization of methods, measurements and indicators for the sustainable management and protection of soil resources.
  3. 3. Area for investment, technical cooperation, extension services Provision of reliable data to support the establishment of the Global Soil Information System (GLOSIS) Improve the basis for decision making regarding e.g. soil fertility, SOC management Identify research gaps e.g. which promising methods require refinement and further development?
  4. 4. Why is GLOSOLAN necessary? Remember that most soil characterizations & recommendations are based on… Soil analytical results!
  5. 5. This network aims to strengthen the performance of laboratories in support of the harmonization of soil data sets and information towards the development of global standards. The harmonization of soil analysis is a critical component of making soil information comparable and interpretable across laboratories, countries and regions. GLOSOLAN was launched on November 2017
  6. 6. When sending the same soil sample to any soil laboratory…
  7. 7. …your expectation is to get the same result (+/- uncertainty) …and to obtain the same soil classification or provide similar recommendations, etc.
  8. 8. In reality… Large differences are observed between laboratories (even for something as simple as pH)
  9. 9. P Laboratory (confidential code) pH Laboratory (confidential code) Example provided by SEALNET 2.0 (ring test, South-East Asia)
  10. 10. But which laboratory is right ? If you send the same soil sample to different labs…
  11. 11. Support the establishment of RESOLANs Undergoing: • Europe and Eurasia • Near East and North Africa • Africa • North America • Pacific
  12. 12. Action Status The list of labs in GLOSOLAN 0 10 20 30 40 50 60 70 South America Central America and the Caribbean Pacific North America Eurasia Europe Africa South of the Sahara Near East and North Africa Asia Laboratories registered in GLOSOLAN on 7 June 2018 National reference labs Other member labs Executed!
  13. 13. Action Status Finalize the list of labs in GLOSOLAN Due on December 2017 Executed! Online survey (lab characteristics) Survey evaluation Underway Executed!
  14. 14. Main findings – General information on the laboratory 1. Staff < 50 % have formal education for analysis or soil analysis.
  15. 15. 2. Building and equipment 30 % of the labs don’t have special room for soil preparation.  risk of contamination by soil dust Main findings – General information on the laboratory
  16. 16. Procedures are highly variable from one lab to another 3. Methodology Main findings – General information on the laboratory
  17. 17. Example from pH 0 5 10 15 20 25 1 1.5 2 2.5 3 5 10 15 20 30 60 120 Numberofresponses Minutes of stirring 0 5 10 15 20 25 0 1 2 5 10 15 20 25 30 45 55 60 120 240 720 1000 1200 Numberofresponses Minutes of settling 0 10 20 30 40 50 60 The clear supernate The soil settled at the bottom of the vessel Others Number of responses • Different stirring time • Different resting time • Different probe position
  18. 18. 1. Inside a single lab 2. Between labs in different countries and regions 4. Data quality control Main findings – General information on the laboratory
  19. 19. 1. Inside a single lab 25 % labs do not use quality control samples quite threatening because errors cannot be avoided… For the labs using QC samples: 40 % use only 1 sample/batch, which is not enough to make conclusions on the quality of the analysis. 0 5 10 15 20 25 30 35 Numberofresponses Number of control samples per batch Answer option RESOLAN-Africa SEALNET LATSOLAN RESOLAN-Europe RESOLAN-NENA Global Yes 71% 72% 88% 88% 83% 83% No 29% 28% 13% 12% 17% 17% Total 100% 100% 100% 100% 100% 100%
  20. 20. 37 19 9 7 4 6 13 7 0 5 10 15 20 25 30 35 40 Yes, performance is tracked every day Yes, performance is tracked every week Yes, performance is tracked every month Yes, performance is tracked every 3 months Yes, performance is tracked every 6 months Yes, performance is tracked every year No Others Number of responses Number of responses: 102 Frequency of quality controls 1. Inside a single lab
  21. 21. 2. Between labs in different countries and regions < 50 % labs participates in an international ring test harmonization of the results is not possible International 45% National 40% Others 15% Number of responses: 112
  22. 22. In conclusion There is a dramatic need to develop a Quality Control and Accreditation system.
  23. 23. Action Status Launch an international ring test (collaboration with WEPAL) Underway Regional ring tests are undergoing in Latin America and Asia – RESOLANs Need for support to exchanging soil samples for research purposes under GLOSOLAN
  24. 24. CHARACTERISTICS OF “Ring Test” ESTABLISHED in LATSOLAN  3 samples of 250 g each (Special letter for the phytosanitary control offices of each country allowed the entry of 100% of the samples without problem)  Soil parameters to evaluate: pH Total Carbon and Total Organic Carbon Oxydized Organic Carbon, (Walkley & Black) Total Nitrogen (Kjeldahl y Dumas) Exchangeable Ca-Mg-K (Ammonium acetate)  Two protocols: Lab routine Consensus protocols (SOPs) Results will be available by end September
  25. 25. Despite multiple existing guidelines and handbooks, the variability of methods, technologies and analytical quality is immense. HARMONIZATION – Best practices guideline. • a compendium of different manuals, one for each parameter and laboratory operation, allows for the best flexible approach • In specific cases, regional specifications could also be highlighted, or even summarized in annexes or different volumes.
  26. 26. Conclusions To get good quality and comparable data:  Spread the voice on the network  Need for laboratories to join network’s activities  Need to ease the distribution to soil samples for the ring test Thank you!

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