湖南省永州市草坪杂草调查初报

Preliminary survey on turf weeds in Yongzhou City of Hunan Province

对湖南省永州市草坪杂草进行实地调查,鉴定和统计,汇总了湖南省草坪杂草的种类、分布特点以及主要草坪杂草的危害情况。结果表明:永州市草坪杂草共有41种,隶属于20个科;永州市危害较重的杂草有狗牙根(Cynodon dactylon)、酢浆草(Oxalis corniculata)、鸡眼草(Kummerowia stria-ta)、革命草(Alternanthera philoxexoides)、野艾蒿(Artemisia lavandulaefolia)、早熟禾(Poa annua)、车前(Plantago asiatica)。尤其是狗牙根、野艾蒿和鸡眼草,相对多度达到20%,杂草已经在不同程度上成为湖南永州市草坪的优势杂草,其与草坪形成了当地的草坪群。永州市草坪杂草在形成过程中产生了相对性,绝对性和时空性,直接威胁着草坪草的生存。

The survey on turf weeds in Yongzhou City was conducted and the result showed that there were 41 species of weeds, which belonged to 20 families. The main species causing serious damage were Cynodon dactylon , Oxalis corniculata , Kummerowia striata , Alternanthera philoxexoides , Artemisia lavandulae f olia , Poa arrnnua, Plantago：asiatica. Especially, the relative abundance of Cynodon dactylon, Artemisia lavandulaefolia and Kummerowia striata reached 20% and these were the dominant turf weeds which were threatening the turf in Yongzhou.