摘要
[目的]研究喀斯特山地草地植物群落优势种植物的种类、数量以及群落特征,为喀斯特山地草地植被恢复提供支持。[方法]采用标准样地调查法,对不同海拔、坡向的植物群落数量特征展开研究。[结果]不同海拔高度中禾本科植物重要值和优势度最高,但其重要值和优势度随样点海拔的升高呈现出下降趋势;优势种数目随着海拔升高呈现出增加趋势。[结论]海拔是影响喀斯特山地草地植物群落结构的主要因素。
[Objective]The aim was to study the species,quantity and community traits of dominant plant in karst mountain grassland plant community so as to provide support for the vegetation restoration in karst mountain grassland.[Method]Standard plot sites investigation method was used study the quantity traits of different plant communities of different altitudes and slopes.[Result]The IV SDR4 were the highest in the all plot sites of plant community on the kasrt mountain grassland,but the IV SDR4 were showed a trend of decreasing with the increasing of the altitude.The dominant quantity was increasing with the altitude upward,so the altitude was the mostly factor for plant community construction.[Conclusion]Altitude was the main factor to influence the community structure of karst mountain grassland plant.
出处
《安徽农业科学》
CAS
北大核心
2011年第29期17966-17969,共4页
Journal of Anhui Agricultural Sciences
基金
国家牧草产业体系项目(CAIS-35)
贵州省科研机构创新能力建设项目(黔科合院所创能[2009]4013)
贵州省农业科学院研究生创新基金项目[黔农科合(创新基金)2010010号]
贵州省科技计划项目(黔科合NY字[2010]3045号)
