松辽生态区稻田杂草群落及种群演替规律研究简报

Successional Law of Community and Population of Weeds in Rice Field in Songliao Ecological Region

本文应用类平均法(HGPMA)和主分量排序法(PCA),绘出松辽生态区稻田杂草群落组成的树系图,划分出危害水稻生长的杂草群落类型,通过分析开荒1～5年稻田杂草群落组成及动态变化,阐明其演替规律;由PCA排序,确定了判断杂草危害级别的主要综合指标。为了解本生态区杂草群落及其变化动态提供了一份资料。

In this paper, the successional law of community and population of weeds in rice field in Songliao ecolgical region was studied with the methods of HGPMA and PCA.