摘要
本文叙述的是乌拉特荒漠草原区海流图境内,进行封育效益的研究。并以环状松土、稀土喷施等改良措施作对比分析。三年资料表明,封育使草群密度增加63%、高度增加45%、地上生物量增加65%。对比试验的效益也较显著。同时植被主分量分析亦表明,封育改善了群落的生境条件,从而改变了群落结构和生长状况。
The paper presents a preliminary study on the benefits of range fencing management in Hailioustoo, Wulat emero—steppe area, Inner Mongolia Autonomous Region. Comparison measurements were made: Analysed the benefits of circular soil loosening method and that of spraying the solution of rare earth elements upon plants, and compared with the control ones. According to our three years'data, the density of plants, the growth height of the herbages and the above ground biomass of the fencedarea increased by 63%, 45%and 65%, respectively, comparing with the data of 1987. The principle components analysis of the vegetation shows that the fencing method improved the babi-tat and changed the structure as well as the growing status of the plant community.
出处
《中国草地》
CSCD
1991年第6期43-47,共5页
Grassland of China
