Michael Cherlet "A new global atlas of desertification: why, how and findings"


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UNCCD 2nd Scientific Conference

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  • Following the quotes and statements one finds around in official publications on how much land degradation would be ongoing globally, Using an array of estimates published mainly between 1990, 1996, and around 2005; this indicates clearly a need to have a new, clear and systematic look at the LDD problem at such global scales to link this better with other global changes of concern. COP8 (when 10yr strat was implemented) already indicated the need for a new WAD WAD implements recent scientiic adavancements 1. Global level baseline on the status and extent of LDD ----- delineation of affected areas … including inventorizing all contributive causal aspects (issues) >Results from Previous and Current reporting cycles suggested that: Still a lack of standardized procedures for monitoring and assessment of LDD Lack of info is hampering implementation of UNCCD – info is requisite to implement 10yr strategy Info crucial/critical for a large and divers set of users No agreement on a methodology exists – WAD facilitates and catalyzes this process (which UNCCD needs) 2. >Although known now that LDD results from complex interactions between bio-physical and societal processes, assessments and mitigation policies do not fully ‘Implement’ this WAD promotes the H-E based vision and has the ambition to illustrate integrated assessment procedures 3. >WAD highlights important aspects and gaps for (indictor) reporting and how these could be integrated Illustrates a number of available and crucial datasets that could be used by countries for their reporting Digital WAD strives to prepare Open Data Platform 4. Basis for economic valuation >
  • Michael Cherlet "A new global atlas of desertification: why, how and findings"

    1. 1. World Atlas of Desertification WAD
    2. 2. WAD sessionIntroduction on WAD M. CherletLDD Economic consequences of population changes A. LeonLDD Economic valuations with spatial data C. MoralesLDD Economic implications of tree cover change G. von MaltitzLDD relation with agriculture and soil P. ZdruliApril 10, 2013 2
    3. 3. WAD Initiative DG Joint Research CentreApril 10, 2013 3
    4. 4. Coordinated by JRC In collaboration with UNEP, FAO and an extensive global network of WAD experts and sourcing networks as DesertNet InternationalApril 10, 2013 4
    5. 5. April 10, 2013 5
    6. 6. GLASOD Map1st world map of (Global Assessment deser fica on of Human-induced(FAO/UNESCO/ Soil Degrada on) WMO) UNEP/ISRIC UNCCD UNCCD Group JRC-EC JRC-EC and 3rd Edi on of Provisional 1st Edi on of 2nd Edi on of Group of of Experts and UNEP UNEP WAD WAD method for LDD WAD WAD Experts WAD ini a ve Expert (JRC-EC/ assessment agreed (UNEP) (UNEP) WAD review guidelines on WAD Mee ngs UNEP) 1977 1987 1990 1992 1997 2002 2007 2009 2011-2012 2014 1977 1992 1994 1995 1996 2010 2012 2013 WAD3UN Conference UN Conference UNCCD Compila on on on Environment in forceDeser fica on andNairobi, Kenya Development UNCCD UNCCD CST 1st (UNCED) Signed Scien fic Conference RIO, Brazil Buenos Aires, Argen na UNCCD CST 2nd Scien fic Conference UN Conven on to Bonn, Germany Combat Deser fica on (UNCCD) established 2010 – 2020 United Na ons Decade for Deserts and the Fight against Deser fica on April 10, 2013 6
    7. 7. Why a new Atlas?Baseline Assessment of Land Degradation and Desertification (LDD) and causal issuesHolistic and Global approach to LDDBring indicator reporting furtherFoundation for economic valuationsApril 10, 2013 7
    8. 8. Climate wetter – drierhotter – cooler Land Use Landwindier - calmer change of purpose intensify - abandon Management Biodiversity NPK Soil quality irrigate – drain Soil carbon – protect nutrients Condition biodiversity structure compaction erosion Changes in Land-Productivity
    9. 9. Limited sets of ‘proximate’ causes (Geist et al., 2006) LDD Issues Capture changes and transitions leading to LDDApril 10, 2013 Zucca et al., 2012 9
    10. 10. April 10, 2013 10
    11. 11. 1981-2010 UpdateAridity Index map (FAO-UNEP) (J. Spinoni et al., 2013)And variations (F. Micale et al.,2013) April 10, 2013 11
    12. 12. DroughtApril 10, 2013 12 S. Horion, 2011; E. Ivits, 2012)
    13. 13. April 10, 2013 13
    14. 14. Initial levels and Steadiness ofStanding Biomass Land Productivity dynamics (E. Ivits et al., 2012-2013) April 10, 2013 14
    15. 15. Forests and semi natural vegetation account for 50% of all areas where land-productivity is increasing Agriculture % EU landaccounts for 35% in each category of the strongly declining areas 1.5% 5.6% 7.9% 70.2% 14.9%
    16. 16. Source: A. Brink et al. JRC
    17. 17. Source: A. Brink et al. JRC
    18. 18. April 10, 2013 18
    19. 19. LADA validation basic knowledge to set up working hypotheses adapted to global scale mappingLocal scale examplesIllustrating globalphenomenon Different Global scale WAD types DLDDCase Studies (comparative) mapping Highlight Improvements regional ~ SLM issues Regional scale National and Local assessments compatibility 19 19
    20. 20. http://wad.jrc.ec.europa.eu http://wad.jrc.ec.europa.euUtilities – uploadUsr id: dnipassw: dni
    21. 21. http://wad.jrc.ec.europa.eu http://wad.jrc.ec.europa.eu
    22. 22. Thank you! Michael.cherlet@jrc.ec.europa.eu WAD CoordinatorApril 10, 2013 22