高黎贡山生物多样性研究——Ⅰ中山湿性常绿阔叶林最小取样面积研究  

Study on Biodiversity of the Gaoligong Mountains——Ⅰ Determination of the Minimum Sampling Area for Semi-moist Evergreen Broadleaved Forest

作　　者：石翠玉[1] 杜凡[1] 王娟[1] 杨宇明[1] 

机构地区：[1]西南林学院资源学院,云南昆明650224

出　　处：《西南林学院学报》2007年第1期11-14,44,共5页Journal of Southwest Forestry College

基　　金：国家重点基础研究发展计划(973)项目(2003CB415100)资助

摘　　要：对高黎贡山中山湿性常绿阔叶林3 600 m2(60 m×60 m)样地构建种-面积曲线和重要值-面积曲线,结果表明:基于种-面积曲线确定的群落最小取样面积取值基本一致,为2 000 m2左右,但取值较大,在云南复杂的山地环境中很难应用.重要值-面积曲线能更为充分客观地反映出不同植物在群落中的地位和作用,更有助于判断群落的最小面积.由此,确定高黎贡山中山湿性常绿阔叶林的最小取样面积为600 m2,灌木层、草本层最小取样面积为180m2.表明重要值-面积曲线是更具有实际意义的群落最小面积确定方法.The species - area curve and the important value - area curve of the plant community were formulated based on the investigation into 3 600 m^2 （60 m× 60 m） sample plot set in the semi - moist evergreen broad - leaved forest in the Gaoligong Mountains. The results showed that the minimum areas determined by species - area curve were consistently around 2 000 m^2, being too large to be applied in the mountainous areas with complex topographies. Compared to the species - area curve, the important value - area curve could fully and objectively reflect the positions and roles of different species playing in the plant communities, so it was more helpful to determining the minimum area of plant communities. Consequently, the minimum sampling area for semi - moist evergreen broad - leaved forest in the Gaoligong Mountains was calculated to be 600 m^2, whereas the minimum sampling areas for shrub layer and herb layer was 180 m^2. All the results suggested that the important value - area curve be a more practical method for minimum area determination for plant communities in the studied area.

关 键 词：高黎贡山 中山湿性常绿阔叶林 种-面积曲线 重要值-面积曲线 

分 类 号：S718.5[农业科学—林学]