星毛委陵菜数量特征指标对短期封育和刈割响应  

Response of Quantitative Characteristics of Potentilla Acaulis on Short-term Enclosure and Clipping

作　　者：鞠晓峰[1] 杜广明[1] 赵伟[1] 于开源[1] Ju Xiaofeng;Du Guangming;Zhao Wei;Yu Kaiyuan(Heilongjiang Bayi Agricultural University,Daqing 163319)

机构地区：[1]黑龙江八一农垦大学,大庆163319

出　　处：《黑龙江八一农垦大学学报》2018年第3期24-26,39,共4页journal of heilongjiang bayi agricultural university

基　　金：国家公益性行业(环保)科研专项(北方重要生态功能区生态限制与安全性技术评价研究:201109025);大庆市指导性科技计划项目(zd-2016-034)

摘　　要：以草甸草原星毛委陵菜为研究对象,调查盖度、密度、地上生物量、重要值和高度5个数量特征指标对连续4年围栏封育和刈割管理响应程度。研究结果表明:随着年限的增加,5个指标中盖度、密度和重要值在第3年后都呈现出显著性差异,重要值响应最稳定,适宜评价短期封育和刈割对草地群落恢复效果。高度4年间均无显著性差异,响应最不敏感,不适宜作为评价指标。The effects of fencing and cutting management on the changes of Potentilla acaulis＇ s coverage,density,aboveground biomass,important value and height were investigated in meadow in continuous 4 years in order to investigate. The results showed that：with the increase of the number of years,the coverage,density and important value of the five indexes show significant difference after the third year,and the difference of the important value fluctuated the least. It was suitable to evaluate the effect of short-term fencing and cutting on the restoration of grassland community. There was no significant difference in height within 4 years,and the response was the least sensitive,so it was not suitable to be used as an evaluation index.

关 键 词：星毛委陵菜 封育 刈割 响应 

分 类 号：S812.8[农业科学—草业科学]