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Naturalregeneration

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Naturalregeneration

  1. 1. Natural Regeneration after storm « Martin » in 1999 By Anne HAUKKOVAARA Jonna RITALA Raquel LOZANO Anaïs CORREIA Stéphane BAROT Vincent BERNARD Audrey SUDRIE Sébastien MARSAN Joël AMAXOPOULOS Baudouin MARLAND
  2. 2. Storm <ul><li>Formation </li></ul><ul><ul><li>Big rainfall with electricity. </li></ul></ul><ul><li>Damage </li></ul><ul><ul><li>Population </li></ul></ul><ul><ul><li>Fire </li></ul></ul><ul><ul><li>Flora </li></ul></ul><ul><ul><li>Fauna </li></ul></ul>
  3. 3. Problematic : natural regeneration is a solution for to reconstitute a timber stand after the storm ? <ul><ul><li>Summary </li></ul></ul><ul><ul><li>1)Different techniques </li></ul></ul><ul><ul><li>1.1 in Spain </li></ul></ul><ul><ul><li>1.2 in Finland </li></ul></ul><ul><ul><li>1.3 in France </li></ul></ul><ul><li> 2) Practical cases </li></ul><ul><li> 3) Positive and negative points of different techniques </li></ul>
  4. 4. Regeneration Artificial Natural
  5. 5. Pinus pinaster in Europe and North Africa <ul><li>Spain research </li></ul>
  6. 6. Pinus sylvestris in Europe and Asia Finland research
  7. 7. Mr. Beau’s regeneration methods <ul><ul><li>Natural regeneration appears as a supprise. </li></ul></ul><ul><ul><li>Competition with Molinie. </li></ul></ul><ul><ul><li>4000 saplings per hectare. </li></ul></ul><ul><ul><li>First uncommercial thinning . </li></ul></ul><ul><ul><li>More natural. </li></ul></ul>
  8. 8. Mr. Hazera’s regeneration methods <ul><ul><li>Good quality with long circle and high density. </li></ul></ul><ul><ul><li>Opportunity because in a densive stand the smallest and the weakest trees die. </li></ul></ul>
  9. 9. • Study of Mr. RICAUD’s plot <ul><li>There are phytosanitary problems. </li></ul><ul><li>Heterogeneousness diameters </li></ul><ul><li>The age varies from 10 to 15 years everywhere in the stand. </li></ul>
  10. 10. Strengths <ul><li>Good method in drained wet lands </li></ul><ul><li>Less expensive than planting. </li></ul><ul><li>High density of the young advantage against damages and lend more opportunity to choose cutting. </li></ul><ul><li>Dead trees are common in all stands. </li></ul><ul><li>Naturally regenerated sites have more biodiversity with less treatment. </li></ul><ul><li>During the growing only the healthiest trees survive with better root system. </li></ul>
  11. 11. Threats <ul><ul><li>Lobbing for the plantations and against the natural regeneration by the industry. </li></ul></ul><ul><ul><li>Financial support of the government focuses on the intensive silviculture. </li></ul></ul><ul><ul><li>The fire will proceed fast in the naturally regenerated forest than in the plantations. </li></ul></ul><ul><ul><li>Longer forest cycle with more time to regeneration. </li></ul></ul><ul><ul><li>Natural regeneration appear in good soils or in prepare areas. </li></ul></ul>

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