Vegetation of Guyra 1:100,000 VISID_561

The remnant natural vegetation (excluding native grasslands) of the Guyra 1: 100 000 map sheet area was sampled by way of 312 20 m � 20 m plots in which all vascular species were recorded using a modified Braun-Blanquet abundance rating. Sampling was stratified to cover the environmental factors of substrate, topographic position and altitude. Floristic analyses used the Kulczynski coefficient of dissimilarity in an agglomerative hierarchical cluster analysis and multidimensional scaling ordinations. Twenty-one plant communities were selected from the cluster analysis. The contribution of species to these groupings was investigated using a fidelity analysis. Another three communities were distinguished from aerial photographs and field traverse. These 24 plant communities are described and all except riparian vegetation are mapped. Their extent was mapped using aerial photography and ground traverses. The vegetation map was digitised at a scale of 1: 25 000 but has been reduced to 1: 100 000 for this publication. The minimum area mapped is 1 ha.;\r\n;\r\nCunninghamia 6(3): 747-872.;\r\n;\r\nVIS ID 561;\r\n;\r\nANZNS0263000190

本研究针对盖伊拉（Guyra）1:10万比例尺图幅区域内的残存自然植被（原生草原除外）开展样点采样：共设置312个20米×20米样方，采用改良的布隆-布朗奎多度评级法（modified Braun-Blanquet abundance rating）记录样方内所有维管植物（vascular species）的多度信息。采样采用分层设计，以覆盖基质、地形位与海拔三类核心环境因子。

植物区系分析采用基于库尔钦斯基不相似性系数（Kulczynski coefficient of dissimilarity）的凝聚式层次聚类分析（agglomerative hierarchical cluster analysis）与多维尺度排序（multidimensional scaling ordinations）。通过聚类分析筛选出21个植物群落，并利用保真度分析（fidelity analysis）探究各物种对这些群落群组的贡献程度。此外，通过航空影像（aerial photographs）与野外踏查（field traverse）额外区分出3个植物群落。

本研究对上述总计24个植物群落进行了详细描述，并完成了除河岸植被（riparian vegetation）外所有群落的空间制图。群落分布范围通过航空影像与野外踏查进行勾绘与核实。植被图最初以1:25000比例尺完成数字化，本次出版物中将其缩编至1:10万比例尺，制图最小面积为1公顷。

《Cunninghamia》第6卷第3期，第747-872页
VIS ID 561
ANZNS0263000190