当阳市农业外来入侵植物调查与风险评估  

Investigation and Risk Assessment of Agricultural Invasive Plant in Dangyang City

作　　者：桑灿 张喆 张劲[1,2] Sang Can;Zhang Zhe;Zhang Jing(Faculty of Resources and Environmental Science Hubei University,Wuhan,4300622;Graduate School of Hubei University,Wuhan,430062)

机构地区：[1]湖北大学资源环境学院,武汉430062 [2]湖北大学研究生院,武汉430062

出　　处：《湖北林业科技》2023年第4期30-38,共9页Hubei Forestry Science and Technology

基　　金：国家农业农村部外来物种普查项目“华中地区外来入侵物种调查研究”(214002001011);湖北省重点研发计划“新型农村污水处理一体化设备研发”(2021BCA129)。

摘　　要：农业外来入侵植物已在全球范围内产生严重的生态安全问题,本研究在全面调查宜昌市当阳市农业外来入侵植物现状的基础上,完善了外来入侵植物数据库,识别出物种分布格局,并运用层次分析法(AHP)对入侵植物的入侵等级进行评估。结果表明:①当阳市农业外来入侵植物共有51种,隶属18科33属,其中菊科16种,苋科9种以及豆科4种,种类最多的属为苋属6种;当阳市农业入侵植物中有35种来源于美洲地区,占物种总数的68.7%;②当阳市外来入侵植物等级较高,已经对生境造成严重的威胁,恶性入侵种、严重入侵种、局部入侵种的物种数分别为13种、9种、8种。③当阳市农业入侵植物中风险等级氛围Ⅰ~Ⅴ种,Ⅰ级植物有8种,Ⅱ级植物5种,Ⅲ级植物6种,Ⅳ级植物13种,Ⅴ级植物21种,入侵风险等级较高。④玉阳街道是各乡镇中农业外来入侵植物高风险、高爆发地区,共发现30个物种,Ⅰ级和Ⅱ级入侵物种在该乡镇均有发现,需要对危害严重的物种和地区加强防治和监测。Agricultural invasive alien plants have caused serious ecological security problems on a global scale,seriously affecting rural ecosystems and agricultural economic security.Based on the comprehensive investigation of yichang dangyang agriculture based on the present situation of agricultural invasive alien plants,improve the Dangyang invasive alien plants database,alien plants to identify the species distribution pattern,and using the analytic hierarchy process(AHP)to evaluate the invasion of the invasive plant level,provide basic data for further agricultural invasive species in hubei province survey and evaluation methods.The results showed that①A total of 51agricultural invasive species belong to 18 families and 33 genera in Dangyang City,including 16 species of Compositae,9 species of Amaranthus and 4 species of legumes.Amaranthus was the most abundant genus with 6 species;In Dangyang City,35 invasive plants came from America,accounting for 68.7%of the total species.②The level of invasive alien plants in Dangyang was relatively high,which had caused serious threats to the habitat.The number of species belonging to malignant invasive species,severe invasive species and local invasive species were 13,9 and 8,respectively.③The risk level was divided in toⅠ~Ⅴ8 species of gradeⅠplants,5 species of gradeⅡplants,6 species of gradeⅢplants,13 species of gradeⅣplants and 21 species of gradeⅤplants in Dangyang City.④Yuyang Subdistrict was a high-risk and high-outbreak area in each township,with a total of 30 species found.Both gradeⅠand gradeⅡinvasive species were found in the township,and 6 high frequency species were distributed in 10 plots.The results showed that the invasive risk level of alien invasive plants in Dangyang City was high,with obvious invasion hazards,and Yuyang Street was the most serious.It is necessary to strengthen the control and monitoring of the seriously endangered species and areas.

关 键 词：农业外来入侵植物 入侵现状 风险等级划分 层次分析法(AHP) 当阳市 

分 类 号：S718.57[农业科学—林学]