Weed Species and Community Structure Characteristic in Prunus salicina Orchards of Anshun City
A study was conducted in 2021-2022 to clarify the species and communication characteristics of weeds in 31 Prunus salicina orchards in Anshun City,Guizhou Province.The investigation employed the inverted"W"nine-point sampling method to gather data.The results showed that the area contains 137 weed species belonging to 121 genera 41 families.Among them,Asteraceae was the most prevalent with 27 genera 31 species,followed by Poaceae with 13 genera 14 species.The weed flora in this region comprised 12 distribution types and 7 variants,among which 54 genera and 57 species exhibited tropical characteristics,thus indicating a distinct tropical nature.There were 121 species of broad-leaved weeds,14 species of gramineous weeds and 2 species of sedge weeds,including 42 species of annual weeds,1 species of biennial weeds,83 species of perennial weeds,10 species of annual or biennial weeds,and 1 species of annual or perennial weeds.And they could be divided into 54 native weeds and 83 invasive weeds.The dominant weeds were Ageratum conyzoides,Bidens pilosa,and Aster indicus,with the relative abundance of above 10％.In Anshun City,Puding County had the most weed species (62 species),Zhenning County exhibited minimal variation in weed community composition,and Xixiu District boasted the richest weed species diversity and uniform distribution.The results of this study could provide significant theoretical support for the comprehensive management of weeds in P.salicina orchards in Anshun City.Furthermore,these results establish a theoretical foundation for the comprehensive weed prevention and control in orchards of Guizhou Province.
Prunus salicina orchardweedbiodiversitycommunity structurecharacteristicsAnshun City
万方数据
维普
