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Kan värmebehandling av biomassa och biologisk kontroll under markytan möjliggöra återvinning vid kontroll av Can heat treatment of biomass and biological below-ground control with livestock enable recycling in control

Sponsors, duration, budget: Trafikverket ; 2021-04-01 -- 2025-03-31 Registration number:
  • Trafikverket 2021/14637
Subject(s): Abstract: Baserat på den omfattande kunskapen om negativa effekter av Invasiva Främmande Arter (IFA) på biologisk mångfald, Syftet med det föreslagna projektet är att utveckla miljövänliga och ekonomiskt effektiva metoder för kontroll och hantering plats inte leder till spridning av IFA, vilket för närvarande saknas. Målet med detta projekt är att: (1) Testa värmebehandling av rhizommaterial från invasiva främmande växter för att utvärdera potentialen för kompostering (2) Undersöka ovan- och underjordiskt bete som metod för biologisk bekämpning av invasiva främmande växter Abstract: Based on the extensive body of knowledge on negative effects of Invasive Alien Species (IAS) on biodiversity, infrastructure and people’s livelihoods, regulations are in place to prevent existing and future spread of IAS (e.g. IPBES 2019, EU regulation No 1143/2014, SE regulation 2018/1939). Accordingly, EU member states need to take measures to stop the spread, implement monitoring and aim to eradicate species of union concern. These species and the species under evaluation by the Swedish authorities are, or will soon become, the focus of widespread control measures. Presently, invasive alien plants are controlled by a diversity of methods and result in biomass that must be disposed of either packed in plastic bags, transported to a waste disposal facility for combustion, or placed in land fill or deep burying. The current procedure involves non-sustainable and costly transport of biomass, which can be expected to increase. The aim of the proposed project is to develop environmentally friendly and economically efficient methods for the control and handling of clonal Invasive Alien Plants (IAPs). First, we will assess the potential for directing biomass of Invasive Alien Plants towards composting rather than landfill, and secondly evaluate a pig grazing method for on-site biological control, using Japanese Knotweed Fallopia japonica as a model system. From a risk analysis perspective, clonal IAPs, such as Japanese Knotweed, can regrow from very small rhizome fragments and quickly regenerate. Based on this capacity for regrowth, regulators are likely to require a strong basis of evidence that on-site biological control methods and composting do not result in spread of the IAPs, evidence that is currently lacking. The objectives of this project will be to: (1) Test heat treatment of rhizome material of Invasive Alien Plants to evaluate the potential for composting (2) Investigate below-ground grazing as a method for on-site biological control of Invasive Alien Plants
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