摘要
以南平市阔叶树林分物种多样性为研究对象,构建阔叶树林分物种多样性评价指标体系,采用模糊层次分析法确定各指标权重,利用南平市阔叶树林分29个样地的乔木、灌木和草本层的相关数据,计算、分析南平市阔叶树林分的物种多样性。结果表明,南平市阔叶树林分物种多样性平均值达1.424,总体处于良好状况,草本丰富度指数、灌木丰富度指数与综合指数的相关性分别为0.77、0.54,而灌木的高度状况对草本层高度的负相关达到0.21,表明草本物种丰富程度对于区域阔叶树林分的物种丰富性具有重要作用,灌木层对草本层有较大的抑制作用。
The stand species diversity of broad-leaved trees in Nanping was calculated and analysed with the help of the related information of 29 samples of arbor, shrub and herb layers and the index system of broad-leaved forest species diversity that the weight of each index was determined by the fuzzy analytic hierarchy process（AHP）. The results showed that the mean value of stand species diversity of broad-leaved trees in Nanping was 1.424, which was at good condition. The correlation between herb abundance index and comprehensive index was 0.77, and the correlation between shrub abundance index and comprehensive index was 0.54, Whereas the negative correlation between shrub height and herb layer was 0.21, which indicated that herb species abundance index played an important role in the regional broad-leaved forest species abundance, and shrub layer played an inhibition role in herb layer.
出处
《福建林学院学报》
CSCD
北大核心
2012年第2期136-140,共5页
Journal of Fujian College of Forestry
基金
国家自然科学基金资助项目(40971043)
福建省教育厅社科基金资助项目(JA101425)
关键词
林分
物种多样性
阔叶树
模糊层次分析法
stand
species diversity
broad-leaved tree
fuzzy analytic hierarchy process
