苏州市东山蔬菜园杂草种类调查研究

运用对角线5点取样法,对苏州市东山蔬菜园内杂草进行了调查。结果表明,蔬菜园内杂草共有24科67种。其中阔叶杂草52种,占78%;禾本科杂草13种,占19%;莎草科杂草2种,占3%。相对多度达10%以上的杂草依次为牛繁缕、猪殃殃、日本看麦娘、马唐、小飞蓬、千金子、大巢菜、稗、酢浆草等9种,其中前6种相对多度在20%以上,可视为蔬菜园的优势种杂草。

Research on Investigation of Weed Species in Dongshan Vegetable Garden of Suzhou City

Using the diagonal five-point sampling method,the investigation to weeds of Dongshan Vegetable Garden in Suzhou City was carried out.The results showed that the weeds of vegetables garden were 67 species,belonging to 24 families,including the broad-leaved weeds 52 species, which account for 78%,gramineae weeds 13 species,account for 19%,cyperaceae weeds 2 species,account for 3%.The weeds of relative abundance above 10% in turn were Malachium aquaticum,Galium aparine,Aloecurus japonicus,Digitaria sanguinalis,Erigeron canadensis,Leptochloa chinensis, Vicia sativa,Echinochloa crusgalli,Oxalis corniculata,etc.The relative abundance of first 6 weed species was above 20%,which could be regarded as the dominant species of weeds in the vegetable garden.