Investigation and Reasearch of Agricultural Alien Invasive Plants in Qignjiangpu District
[Objective]The aim was to comprehensively understand the species composition,origin,occurrence frequency,and hazard level of agricultural invasive plants in Qingjiangpu district of Huai'an city,protect the local ecosystem,ensure agricultural production,and provide reference basis for the prevention and control of agricultural invasive plants and the protection of local biological security.[Method]Based on the distribution of agricultural areas in Qingjiangpu district,it was designed 6 inspection routes with 60 inspection points investigated in spring and autumn.Relative records was kept to complete a census of the types,registration,habitat,and occurrence area of industrial invasive plants.Species with serious hazards were additionally surveyed and recorded by using sampling methods.[Result]74 species of invasive plants were found in Qingjiangpu district,belonging to 19 families and 51 generas.Asteraceae(13 genera and 17 species),Amaranthaceae(3 genera and 7 species),Leguminosae(7 genera and 11 species),and Poaceae(5 genera and 6 species)were the dominant families,accounting for 55.41%of the total discovered species.The genera with the most species were Euphorbia(5 species)and Amaranthus(5 species).The origin mainly came from Americas,with a total of 38 species,accounting for 51.35%of the total discovered species.According to the frequency of occurrence,the top 9 species exceeded 80%,belonging to the dominant species in Qingjiangpu district.11 species of grade 1 malignant invasion,accounting for 14.86%of the total number of discovered invasive plant;8 species of grade 2 severe invasion,accounting for 10.81%.[Conclusion]Eight specifications of malignant invasive plants were found belonging to key monitoring list of invasive plants Qingjiangpu District,and individual species pose a serious threat and damage to agricultural production and ecosystems.Relevant departments should attach great importance t,and take effective prevention and control measures in a timely manner.
Qingjiangpu districtInvasive plantsAgricultural productionSpecies compositionKey monitoring list of alien invasive plants
NETL
NSTL
万方数据
