摘要
用重要值和频度计量不同旅游干扰下草甸种群生态优势度的差异.结果表明:不同种群生态优势度的差异反映了它们对于旅游干扰的生态响应.由近及远,草甸种群从抗性强的物种向抗性弱的物种逐渐过渡.其中,紫羊茅抗性最强,北方嵩草则较弱.与频度相比,重要值更能够反映出不同物种的生态差异.
The difference of ecological dominance of meadow population on different tourism disturbance was studied by important value and frequency.The result shows that the ecological dominance of different population reflects their response to tourism disturbance.From the nearness to the farness,meadow population of strong fastness transit gradually to those of weak fastness.In all population,Festuca rubra is the strongest,and Kobresia bellardii is weaker.Compared with frequency,important value shows the ecological difference of different population.
出处
《西北植物学报》
CAS
CSCD
2004年第8期1476-1479,共4页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金资助 30070140
关键词
不同距离带
重要值
频度
五台山
different distance belts
important value
frequency
Wutai Mountains
