群落特征和林分空间结构对森林公园景观美学质量贡献率及影响因子

发布时间：2019-06-10 02:36

【摘要】：植物群落特征和林分空间结构组成及评价是森林公园景观的关键,对森林公园景观优化与提升具有重要意义。以福建金丝湾省级森林公园为对象,基于40个调查样方,从群落特征和林分空间结构2个层面选择24个景观影响因子,运用美景度评价法(SBE)得出各个样方景观得分值,进而构建美景度和各个影响因子类目之间的景观评价与预测的多元回归线性模型,并分析群落特征和林分空间结构对森林公园景观美学质量的贡献作用。结果表明:森林公园景观中,主要影响美景度的景观因子有凋落物、林下层统一度、乔木丰富度、郁闭度、胸径变异系数、竞争指数、枝下高和角尺度,其贡献率分别为20.809%,20.424%,14.547%,14.162%,10.790%,8.189%,6.455%和4.624%;群落特征和林分空间结构2个层面的贡献率分别为87.187%和12.813%。植物群落特征和林分空间结构相互作用在森林公园美景度评价中占据着重要地位。
[Abstract]:The characteristics of plant community and the composition and evaluation of stand spatial structure are the key to the landscape of forest park, which is of great significance to the optimization and promotion of forest park landscape. Taking Fujian Jinsiwan Provincial Forest Park as the object, based on 40 sample plots, 24 landscape influencing factors were selected from two levels of community characteristics and stand spatial structure, and the landscape score of each sample was obtained by using the beauty degree evaluation method (SBE). Furthermore, a multiple regression linear model for landscape evaluation and prediction between beauty degree and various influencing factors is constructed, and the contribution of community characteristics and stand spatial structure to the aesthetic quality of forest park landscape is analyzed. The results showed that the main landscape factors affecting the beauty of forest park were litter, unified degree of forest understory, tree richness, depression density, coefficient of variation of DBH, competition index, height under branch and angle scale, and the landscape factors affecting the beauty of forest park were litter, unity of understory, abundance of trees, density of depression, coefficient of variation of DBH, competition index, height under branch and angular scale. The contribution rates were 20.809%, 20.424%, 14.547%, 14.162%, 10.790%, 8.189%, 6.455% and 4.624%, respectively. The contribution rates of community characteristics and stand spatial structure were 87.187% and 12.813%, respectively. The interaction between plant community characteristics and stand spatial structure plays an important role in the evaluation of forest park beauty.
【作者单位】：福建农林大学园林学院;福建农林大学福建省资源环境监测与可持续经营利用重点实验室;福建农林大学林学院;
【基金】：福建省高校产学研合作项目(2015N5010) 国家自然科学基金资助项目(41401385) 福建省教育厅科技计划项目(JA14126)
【分类号】：TU986.52

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