This standard establishes an index system and method for evaluating the invasion risk of alien tree species to natural and semi-natural ecosystems, including the evaluation of the invasiveness or spread of invasion of alien tree species, the assessment of the impact of alien tree species on the ecosystem, the classification of invasion risk levels of alien tree species and the Evaluate the difficulty of tree species prevention and control, and propose corresponding hierarchical management strategies. This standard applies to all tree species introduced through different channels from outside the territory of the People's Republic of China or from an area within the territory of the People's Republic of China and any organs or tissues that can be used for reproduction.
LY/T 1960-2011 history
2011LY/T 1960-2011 Technical codes for invasion risk assessment of exotic tree species to natural ecosystem