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EFFORTE's value to French forestry - National Forests' Office's viewpoint

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Presentation by Didier Pischedda

Publié dans : Environnement
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EFFORTE's value to French forestry - National Forests' Office's viewpoint

  1. 1. Didier PISCHEDDA EFFORTE Final seminar - Helsinki June 2019
  2. 2. Office National des Forêts : Key figures Public institution found in 1966 with industrial and commercial character. ONF manage 4.7 millions ha in France (26 % of national forest surface) and 8 millions ha in French overseas departments  State Forests : 1,8 M ha  Communities Forests (11 500) : 2,9 M ha In France: 6 Territorial Directions, 50 territorial agencies and 387 Territorials Units  9 583 persons among whom 3 144 forest workers Species in public forests : 2/3 broadleaves (mainly Oak and Beech,… ) 1/3 coniferous (10 commercial species)
  3. 3. The 3 pillars of sustainable development  Economic efficiency • Timber sales : 16,9 Mm3 (8,3 Mm3 from State Forest and 8,6 Mm3 from Communities Forest) - 60 % sales of standing timber (on roots - blocksales) - 40 % sales of round timber (on roadside) Where 3,7 Mm3 are Supplying contrats with forest industri • Harvesting contracts (manual or mechanized) : mostlig pluriannual – 1 year contract x 4 or 4 years contract – 1 500 forest entrepreneurs working of ONF  Environnemental performance • Forest managment document – Historical basis of ONF expertise (since an Ordonnance of 1669 and the French Forestry Code of 1827) • PEFC certification for states forests (the first one in 2002) • Definition of an Environmental Policy in 2006 and stated in 5 major thematics : - Biodiversity Water - Soil Landscape Eco-responsability  Responsabilities toward society and Missions of General Interest • Public welcome with appropriate infrastructures (200 millions visits / year in public forest) • Protection against natural hazards: avalanches, rock falls, torrential floods, landslides, erosion, • Prevention against forest fires • Management of coastal dunes
  4. 4. SOILS CONTEXT IN FRANCE Soils protection awareness started after the great storm of december 1999 Soils sensitivity for compaction was defined by PROSOL project (2009) in relation with 2 main factors:  Soil texture  Soil water content Sol sec Sol frais Sol humide Nappe d'eau présente sur 50 cm de profondeur à moins de 50 cm de la surface Sol très caillouteux (Elmts Grossiers ≥ 50 %) Sol très sableux (Sable ≥ 70 %) Argile dominante Limon dominant et sable limoneux Etat d'humidité Texture
  5. 5. SOILS CONTEXT IN FRANCE French public forests specificities : Mostlig siltig soils or clay soils => very sensitive soils for heavig machines when humid Dynamic sylviculture with harvesting/tynning each 8 or 10 year (since the forestgrowth is from 8 to 18m3/ha/year) => Forest soil have no time for recovering Our conlusion is to set up permanent skidtrails nett (during the whole forest rotation and more) => It’s then crucial to maintain machin trafic on skidtrails over the time
  6. 6. SOILS CONTEXT IN FRANCE When soil sensitivity is known and skidtrail installed, the next question is : How long skidtrail will resist machin compaction when it’s rainning ? We though that the answer has to reflect a common responsability between foresters and machin entreprenors 2011/12 and 2017/18 were very rainy winters :  A lot of harvesting stop in forests  => Problems with timber flow to sawmills French project PRATIC’SOLS (with entrepreneur union) => Skidtrails praticability and EU project EFFORTE : WP Evolution of watercontent under skidtrail (R&D) was very complementary
  7. 7. SOILS CONTEXT IN FRANCE EFFORTE results : WP1: Soils mechanic and trafficability Results give us better arguments to better organize harvesting site in a sustaibable way FCBA measured that machine ground pressur can be different between front and back axles of machines. Machine ground pressure is not only : machin weigth /contact surface => These results have to be communicated to machin constructors to work on optimal design Big data Applications These application let us see what we can implement in a neaufuture in our information system => ONF is positiv for futher development in french context, taking account results from WP1
  8. 8. Didier PISCHEDDA EFFORTE Final seminar – Helsinki Thank you June 2019

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