【摘要】 通过收集资料、走访调查、实地采样、制作标本鉴定等方法,对四川省有毒植物的生态分布进行了调查分析。调查显示,省内主要有毒植物分属3 4科、6 0属、9 2种;主要分布在甘孜、阿坝、凉山、雅安、乐山、绵阳等地,其中棘豆属、瑞香狼毒和橐吾属的植物在川西北高原牧区已成为优势种,分别约占牧区草场面积的1 0%、2%、2.7%。紫茎泽兰在全省分布已超过8 1万hm2,占全省土地面积的0.1 6%,以凉山、攀枝花尤为严重。更多还原

【Abstract】 Through data collection,on-the-spot survey and sampling,identification of samples,the ecological distribution of poisonous plants in Sichuan province was surveyed.The results showed that there are about 92 kinds of poisonous plants belonging to 34 families and 60 genera,distributing in these areas-Ganzi,A′ba,Liangshan,Ya′an,Leshan,Mianyang,et al.Of all these poisonous plants,Oxytropis,Stellera chamaejasme and Ligularia had become the dominant species in the pastoral areas of northwest Sichuan,of which Ligularia account for about 10% of grassland area,Stellera chamaejasme 2%,and Oxytropis 2.7%.The distribution area of Eupatorium adenophorum exceeds 8.1 million hectares,accounting for 0.16% of the total land area of Sichuan province,which is very serious in Liangshan and Panzhihua areas.更多还原