摘要
以呼伦贝尔草甸草原为研究对象,利用围栏封育样地内外连续4年的植被调查资料,对比分析了围栏内外的植被组成和群落特征,结果表明:围栏封育措施提高了草甸草原植被的地上生物量、盖度、高度及密度,其均显著高于相应年份围栏外(P<0.05);围栏内外植物群落组成没有发生明显变化;围栏封育使围栏内羊草、贝加尔针茅优势种的优势地位明显增加。
The vegetation composition and community characteristics were studied in outside and inside of enclosure plots during a four year vegetation investigation on the Hulunbuir meadow steppe.The results showed that：The height,density,coverage and aboveground biomass of community vegetation were increased with enclosure time,and were significantly higher than outside of enclosure on corresponding year（P0.05）.The basic components of plant communities inside and outside the enclosure didn＇t change significantly.The dominant species Leymus chinensis and Stipa baicalensis increased significantly with enclosure time.
出处
《中国草地学报》
CSCD
北大核心
2016年第1期87-92,共6页
Chinese Journal of Grassland
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)
关键词
围栏封育
群落结构
草甸草原
呼伦贝尔
Enclosure
Community characteristics
Meadow steppe
Hulunbuir
