围栏内外白喉乌头刈割防除探索

Explore Cutting for Governing Aconitum leucostomumWorosch between the Inside and Outside Fences

【目的】探明不同刈割次数在围栏内外对白喉乌头的防除效果。【方法】设置围栏内外刈割次数实验,采用方差分析比较法(Duncan新复极差法)对围栏内外不同刈割次数样地内白喉乌头的密度、高度、株丛径、有性繁殖丛数进行比较分析。【结果】在不同的生境下采取不同的刈割次数进行防除,当年导致处理间的白喉乌头各监测指标存在显著差异。【结论】(1)短时间的围栏封育对白喉乌头的防除效果并不明显。(2)三次刈割可以从根本上解决其有性繁殖带来的蔓延危害。(3)当年的三次刈割即在人为干扰下的长期竞争中使白喉乌头处于劣势,实现防除目的。

[Objective]The purpose of this study is to find out the effect of governing Aconitum leucostomum Worosch at different periods of cutting it inside and outside the fences. [Method]At first, establish the experiment of cutting it inside and outside the fences, and then use variance comparison method （Duncan method） to analyze and compare the A. leucostomum＇s density, height, coverage, sexual propagation. [Result]Taking a different cutting times to prevent and cure the A. leucostomum in different habitats which lead to the monitoring index is significantly different. [ Conclusion] The results show： （1） Fencing in short time to govern the effect of A. leucostomum is not manifest. （2） Cutting it three times in one year can radically end its sexual propagation. （3） Cutting it three times in one year as man- made interference in long - term competition makes A. leucostomum in inferior position, which can lead to preventing it from growing again.