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Legislation ,[object Object],[object Object],[object Object],[object Object],[object Object]
Recommendations ,[object Object],[object Object],[object Object],[object Object],[object Object]
2. Preserve biodiversity ,[object Object],[object Object],[object Object],[object Object],[object Object]
Limit damages on soil and trees  ,[object Object],Photo: Anja Lomander
->Ash recycling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Residual extraction – notified (in reality – less)
How to notify Residual extraction  ? ,[object Object],[object Object],[object Object]
Forest residues - tops, branches and trees of no industrial value
Residues from felling stacked to dry over summer, to be chipped
Ash recycling is developing, but..
EU project “Bioenergi from forest” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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The role of Swedish Forest Agency in bio energy work / policy-rules-recommendations

Notes de l'éditeur

  1. Grot används ofta för att skydda marken så när en markägare vill sälja biobränslen ökar risken för skador på marken. På fotot kan man se hur bra grot skyddar. I det ena körspåret har det av misstag lämnats grot och skillnaden jämfört med den otäckta marken syns tydligt. Markskador kan påverka den biologiska mångfalden i vattendrag och körskador får inte förekomma inom fornlämningsområden. Dessutom ökar risken för skador på mark, växande träd och kvarlämnad naturhänsyn genom de ökade transporter i skogen som uppstår om grot ska tas ut och aska återföras. Det är därför viktigt att åtgärder vidtas för att undvika den här typen av skador. Det är också viktigt att avverkningsresterna hanteras på ett sätt så att risken för insektsangrepp inte ökar.
  2. Uttag av skogsbränsle (GROT samt stubbar) ska göras via anmälningsblanketten. Skogsstyrelsens allmänna råd (§30) I barrskog kan skador på näringsbalansen vid uttag av träddelar utöver stamvirke begränsas om merparten av barren lämnas kvar, så jämnt spridda som möjligt över det avverkade området. Ovan nämnda skador kan även undvikas eller begränsas genom tillförsel av mineralnäring (t.ex. aska). Utan tillförsel av mineralnäring bör uttag inte ske mer än en gång under ett bestånds omloppstid. Vidare bör uttag inte ske på starkt försurade marker utan tillförsel av mineralnäring. På marker med hög kvävebelastning kan uttaget även omfatta barren, under förutsättning att tillförsel av mineralnäring sker. Utan tillförsel av mineralnäring bör uttag inte ske på torvmarker. Vid användande av aska vid vitaliseringsgödsling och kompensationsgödsling bör, för att undvika eller begränsa skador på miljön, askans mängd, form och sammansättning samt tidpunkt för åtgärder väljas så att kväveutlakning och förluster av tillförd näring begränsas. Exempelvis bör askan ha sitt ursprung i biobränsle samt vara stabiliserad och långsamlöslig. Dessutom bör den totala tillförseln av skadliga ämnen (t.ex. tungmetaller) under ett bestånds omloppstid inte överstiga den bortförsel av sådana ämnen som sker genom det totala biomassauttaget. Vid kompensationsgödsling bör sammantaget under ett bestånds omloppstid inte mer än 3 ton aska TS (torrsubstans) tillföras per hektar. Skogsstyrelsen har meddelat allmänna råd (SKSFS 2007:3) för användning av kvävegödselmedel på skogsmark.