呼和浩特地区草坪杂草生态特征的初步分析

初步分析了温带半干旱地区不同类型草坪的杂草种类组成及数量特征，结果指出共有杂草122种，隶属82属29科．在管理水平较高的草坪中，主要杂草为鼠掌老鹳草、鹅绒萎陵菜、赖草，且在不同季节里优势度相对稳定；在管理水平一般的草坪中，主要杂草是止血马唐、早开茧菜、西伯利亚蓼、艾等．7月到9月中旬以止血马唐为主，9月下旬以后以早开茧菜、西伯利亚蓼、艾等为主．

A Primary Analysis of Ecological Characters of Lawn Weeds in the city of Hohhot

The specific composition and quantitative character of lawn weeds in Hohhot city during summer and autumn were analyzed.It was shown that there were 122 species of weeds,which belonged to 82 genuses,29 families.In the lawn under higher management level,the main weeds were Geranium sibiricum,Potentilla anserina,Leymus secalinus,and their important values were relatively stable in different seasons.In the lawn,under lower management level,the main dominant species was Digitaria ischaemum from July to the middle of September,after that Vida prionan ,Polygorum sibiricum,Artemsia argyi became dominant weeds.