天水大樱桃园杂草种类及优势种群调查  

Investigation onWeed Species and Dominant Population of Cerasus pseudocerasus Orchard in Tianshui City

作　　者：张新强 Zhang Xinqiang(Qinzhou Forestry and Grassland Bureau,Tianshui 741000,Gansu,China)

机构地区：[1]天水市秦州区林业和草原局,甘肃天水741000

出　　处：《农业技术与装备》2023年第3期10-12,共3页Agricultural Technology & Equipment

基　　金：天水市秦州区科技支撑计划项目(秦州区大樱桃果园杂草绿色防控模式试验示范,2021-JHGLG-1506)。

摘　　要：采用倒置“W”9点取样法,对天水主产区大樱桃果园杂草进行了调查,发现该地区果园杂草共有24种,隶属于13个科24个属。其中菊科和禾本科种类最多,共11种,占45.8%,一年生草本有16种,占66.67%,多年生草本8种,占33.33%。相对多度在10%以上的杂草有繁缕、狗尾草、灰藜、马齿苋、蓟、早熟禾6种,是天水大樱桃果园的主要杂草,繁缕、狗尾草、灰藜、马齿苋4种杂草相对多度在30%以上。此6种杂草在果园地理分布广,是天水主产区大樱桃果园杂草的优势种群。其中无害杂草有12种,占50%,轻度危害杂草有7种,占29.17%,重度危害杂草5种,占20.83%。The study is carried out to investigate weed species and dominant population.It adopts an inverted W-pattern with 9 sampling points in Cerasus pseudocerasus orchard of Tianshui dominant production regions.The results showed that there are 24 species weeds in the Cerasus pseudocerasus orchard,and they belong to 13 families,24 genera.Asteraceae and Poaceae species are more than others and there are 11 species in total,accounting for 45.8%.There are mostly 16 species of annual herbs,8 species of perennial herbs,accounting for 66.67%and 33.33%respectively.The relative abundance of weeds more than 10%and there are 6 species,such as Stellaria media,Setaria viridis,Chenopodium album,Portulaca oleracea,Cirsium japonicum and Poa annua,They are the main weeds in cherry orchard,and the relative abundance of four weeds are more than thirty percent,such as Stellaria media,Setaria viridis,Chenopodium album,Portulaca oleracea.These six species are widely distributed in the orchard and they are the dominant species in the main producing area of Cerasus pseudocerasus orchard in Tianshui,there are 12 harmless weeds,accounting for 50%,7 mildly harmful weeds,accounting for 29.17%,and 5 severely harmful weeds,accounting for 20.83%.

关 键 词：优势种群 杂草调查 大樱桃果园 天水地区 

分 类 号：S451[农业科学—植物保护]