紫茎泽兰在凉山金阳的分布情况及其规律  

The Distributing Situation and Rules of Eupatorium adenophorum spreng in Jin-Yang County

作　　者：钟肖[1] 罗东[1] 石一日约 樊兴荣 张建波[2] 熊元恩 

机构地区：[1]四川金阳县畜牧局,四川金阳616250 [2]四川农业大学

出　　处：《草业与畜牧》2006年第12期41-43,共3页Pruataculture & Animal Husbandry

摘　　要：调查了紫茎泽兰(Eupatorium adenophorum Spreng)在金阳县的分布规律,为防止紫茎泽兰对金阳县农业生产和生态环境破坏提出了一些依据。本次调查了每个样方内的紫茎泽兰的植株数、平均高度、单株生物量和总生物量,发现紫茎泽兰的总株数从海拔1 650 m的3株增长到580 m的32 640株,极差达到32 637,变化极其显著;紫茎泽兰的平均高度和单株生物量变化也较大;同时发现紫茎泽兰的植株数、平均高度、单株生物量和总生物量随海拔的升高成负相关,其中单株生物量与海拔的相关性最显著,相关系数达到-0.937 4。Investigated the distributing rules of Eupatorium adenophorum Spreng in Jin-yang county in the hope of providing some basis for preventing Eupatorium adenophorum Spreng from destroying agricultural production and ecological environment. The plant count, average height, single biomass and total biomass of Eupatorium adenophorum Spreng were studied in each kind of square. The result showed that the range of total number of Eupatorium adenophorum Spreng from 3 in altitude 1650m to 32640 in altitude 580m was up to 32637, which change was extremely prominent .Average height of Eupatorium adenophorum Spreng and its single biomass were changed remarkably. Besides, the plant count, average height, single biomass and total biomass showed negative correlation with the altitude rising, and single biomass＇ s correlation is remarkable with altitude, which coefficient of correlation is up to -0.937 4.

关 键 词：紫茎泽兰 分布情况 分布规律 

分 类 号：S45[农业科学—植物保护]