红丝姜花形态及入侵风险评价

Morphology and Risk Assessment of Hedychium gardnerianum Sheppard ex Ker Gawl

红丝姜花被列为世界上100种最危险的入侵物种之一,广泛分布于热带地区,因其花朵美丽和可食用根状茎,被我国小部分地区引种。研究其形态特征及入侵风险,以确定是否需针对其开展相关防控措施。根据形态学分类方法,确定红丝姜花植株形态特征;依据联合国粮农组织(FAO)的植物检疫有害生物风险分析程序,建立红丝姜花风险性评价指标体系;根据原产地的气候环境及红丝姜花的生物学特性,分别对红丝姜花的入侵风险进行定性和定量分析。红丝姜花风险值R为2.15,属于高风险入侵生物。初步判定红丝姜花可能在中国安徽等20个省(区)或直辖市发生,其中海南、广东、贵州、澳门地区、浙江、福建、江西、台湾地区、广西、重庆、香港地区为重点监控区域。建议相关部门将红丝姜花列入外来有害生物入侵防控的重点关注对象。文章为相关部门制定红丝姜花相应的管控措施提供科学依据。

Hedychium gardnerianum Sheppard ex Ker Gawl is widely distributed in the tropics and listed as one of the 100 most dangerous invasive species in the world wild.Because of its beautiful flowers and edible rhizomes,it has been introduced to some areas of China.A study on its morphological characteristics and invasion risk is critical to determine whether some prevention measures need to be taken.According to the morphological classification method,the plant identification characteristics of H.gardnerianum were determined.Following the risk analysis for quarantine pests procedure by FAO,the risk evaluation index system for H.gardnerianum was established.Based on the climate of the origin and the biological char-acteristics of H.gardnerianum,the invasive risk of H.gardnerianum is analyzed quantitatively and qualitatively.The risk value(R)was 2.15,and it is a high-risk pest.It indicated that higher invasive risk of H.gardnerianum in 20 provinces of China,especially 11 regions as the key monitoring areas,including Hainan,Guangdong,Guizhou,Macao region,Zhejiang,Fujian,Jiangxi,Taiwan region,Guangxi,Chongqing and Hong Kong region.It is suggested that H.gardnerianum should be listed as a vital object for for-eign pest invasion prevention and control.The article provides a scientific basis for the relevant departments to formulate the corresponding control measures of red silk and ginger flowers.