伏牛山北坡植物功能群组成沿海拔梯度的动态变化

Dynamics of Plant Functional Groups along Altitudinal Gradient on the Northern Slope of Funiu Mountain

使用群落生态学的方法在伏牛山北坡（855～1920m）海拔梯度上，研究了海拔梯度对植物功能群动态变化及种群相互作用的影响，通过计算群落中优势种及伴生种的重要值，分析各物种在群落组成中的地位和作用，并应用相关性指数，对各海拔物种重要值与海拔之间相关性进行了分析．结果表明，海拔是影响植物功能群分布最重要的环境因子．

With community ecological method, the paper investigated the effects of altitude on plant functional groups dynamics and population interactions on the northern slope of Funiu Mountain. Importance values of dominant and companion species were calculated to determine the status and functions of each species in its community. The correlation between altitude and species importance value was analyzed. The results indicates that altitude is the most important environmental factors affecting the distribution of plant functional groups.