生态与农村环境学报2016，Vol.32Issue(5)：750-756,7.DOI:10.11934/j.issn.1673-4831.2016.05.010
武夷山亚热带常绿阔叶林物种多样性的尺度效应
Scale Effects on Species Diversity of Subtropical Evergreen Broad-Leaved Forest on Wuyi Mountains
摘要
Abstract
Scale effect is of fundamental ecological significance to exploration of structural variation and dynamics of plant communities. As the Wuyishan preserves certain patches of natural primary forest ecosystems typical of the central subtrop⁃ics, exploration was carried out in that region of mechanisms of the formation and maintenance of the species diversity, and spatial distribution of the species diversity index in the region and its scale effects. Based on trees≥1 cm in DBH within the forest dynamics monitoring zone, 9�6 hm2 in area on the Wuyishan, Fujian Province, Simpson index, Shannon⁃Wiener index and Pielou′s evenness index were calculated using seven sampling scales (5 m × 3 m, 10 m × 6 m, 20 m × 12 m, 40 m × 24 m, 80 m × 48 m, 133�3 m × 80 m, 200 m × 120 m) . Variance and coefficient of variation was used to de⁃scribe spatial variability, as well as relationships between these indices and sampling scale. Results show that all the indi⁃ces are related with scale, and feature significantly regional distribution. In addition, species diversity is not only related to spatial scale, and its distribution also follows the rule of scale deduction. Therefore, in analyzing species diversity of plant communities in future, attention should be paid to the rule of scale deduction and spatial variability brought about by sam⁃pling scale and areas.关键词
取样尺度/尺度效应/物种多样性指数/空间变异Key words
sampling scale/scale effect/species diversity index/spatial variability分类
农业科技引用本文复制引用
陈婷婷,徐辉,马方舟,陈水飞,徐海根,方炎明,杨青,徐鲜钧,丁晖..武夷山亚热带常绿阔叶林物种多样性的尺度效应[J].生态与农村环境学报,2016,32(5):750-756,7.基金项目
环保公益性行业科研专项（201309039）；中央级科学事业单位修缮购置专项“全国生物多样性野外监测示范基地修缮项目一期”；环境保护部事业费项目“生物多样性保护专项”；福建省省属公益类科研院所基本科研专项 （）
