Risk Analysis of Solidago canadensis in Qiannan Prefecture, Guizhou Province
- Received Date: 30/09/2021
-
Key words:
- Solidago canadensis /
- Qiannan prefecture /
- invasive plant /
- risk analysis /
- risk management
Abstract: Solidago canadensis L.is a most threatening invasive alien species in China, mainly occurring in the Yangtze River Delta and southeast coastal areas of China. From 2018 to 2021, the invasion of S. canadensis was discovered successively in Dushan, Guiding, Duyun, Fuquan, Changshun and Huishui of Qiannan Prefecture, Guizhou Province. Based on the collection data of S. canadensis and field investigation, qualitative and quantitative analyses of S. canadensis were carried out using the risk analysis index system of forest pests. The results showed that the comprehensive risk assessment value R of S. canadensis in Qiannan Prefecture was 2.55. According to the classification standards of forest pest risk levels, S. canadensis was identified to be a dangerous invasive plant in Qiannan Prefecture. In response to the occurrence of S. canadensis in Qiannan Prefecture, management measures such as monitoring and prevention are proposed in this paper.