【摘要】 采取路线调查、样方测定与"3S"技术等方法,组织有关部门对四川省外来入侵生物——紫茎泽兰Eupatorium adenophorum进行了监测,摸清了紫茎泽兰在四川省的最新分布、危害现状与规律,提出了防治建议。结果显示:紫茎泽兰已广泛分布在四川省凉山、攀枝花、雅安、宜宾、泸州、乐山、甘孜7个市(州)42个县(区),分布面积96万hm2;对生物多样性、生态系统产生严重影响,对畜牧业、农业、林业造成了巨大危害;紫茎泽兰每年以20~30 km的速度向北向东传播蔓延,对成都平原及长江中下游地区生态安全构成严重威胁。更多还原

【Abstract】 The latest distribution in Sichuan province and its harmfulness of Eupatorium adenophorum,an important invasion plant,was determined in this study by combining the route survey and ’3S’ technology.The results of this study indicated grew in Liangshan,Panzhihua,Ya’an,Yibin,Luzhou,Leshan and Ganzi(42 countries) and covered 960,000 hectares.Based on plot data from field survey,spread of E.adenophorum badly threatened the biodiversity and ecosystem,and harm to husbandry,agriculture and forest production.Area of E.adenophorum growth has expanded towards south and east by 2030 kilometers per year,and this threatens the ecological security of Chengdu plain and mid-lower reaches of Yangtze River.更多还原