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Effect of environmental factors on understory species diversity in Southwest Guangxi <i>Excentrodendron tonkinense</i> forests

Tan YiboGuangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Nanning 530002Shen WenhuiGuangxi Zhuang Autonomous Region Forestry Research Institute, Nanning 530002Zi FuGuangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Nanning 530002Zheng WeiGuangxi Lijiangyuan Forest Ecosystem Research Station, Guilin, Guangxi 541316Ou ZhiyangGuangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Nanning 530002Tan ZhangqiangGuangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Nanning 530002Peng YuhuaGuangxi Lijiangyuan Forest Ecosystem Research Station, Guilin, Guangxi 541316Pang ShilongGuangxi Lijiangyuan Forest Ecosystem Research Station, Guilin, Guangxi 541316He QinfeiGuangxi Key Laboratory of Superior Timber Trees Resource Cultivation, Nanning 530002Huang XiaorongGuangxi Zhuang Autonomous Region Forestry Research Institute, Nanning 530002Feng HeGuangxi Lijiangyuan Forest Ecosystem Research Station, Guilin, Guangxi 5413164 Office of Converting Farmland to Forestry, Guangxi Forestry Bureau, Nanning 530028
Biodiversity Sciencejournal2019en
ABI

Аннотация

庞世龙 1,2,3 何琴飞 1,2,3 黄小荣 1,2,3 何 峰 1,2,3 1 (广西壮族自治区林业科学研究院, 南宁 530002) 2 (广西优良用材林资源培育重点实验室, 南宁 530002) 3 (广西漓江源森林生态系统国家定位观测研究站, 广西桂林 541316) 4 (广西壮族自治区林业局退耕还林办公室, 南宁 530028) 摘要: 探索林下植被分布格局及其影响因素, 对于天然林保护和森林生物多样性维持机制研究具有重要意义。本 文以桂西南喀斯特地区不同蚬木(Excentrodendron tonkinense)天然成熟林为研究对象, 采用植物群落样方调查、单 因素方差分析、 Pearson相关分析和冗余分析(RDA)等方法, 研究了8个县市蚬木天然成熟林林下植被物种多样性的 变异及其对土壤、地形和光照等环境因子的响应。结果表明, 林下植被中灌木层优势种主要有越南槐(Sophora tonkinensis)、鹅掌柴(Schefflera heptaphylla)、毛果翼核果(Ventilago calyculata), 以及乔木层幼苗如蚬木、广西澄广 花(Orophea anceps)、岩樟(Cinnamomum saxatile)、金丝李(Garcinia paucinervis)等, 主要来自豆科、五加科、鼠李 科、椴树科、番荔枝科、樟科、藤黄科和大戟科等; 草本层优势种主要有肾蕨(Nephrolepis cordifolia)、石山棕(Guihaia argyrata)、崖姜(Pseudodrynaria coronans)、柔枝莠竹(Microstegium vimineum)、水蔗草(Apluda mutica)、沿阶草 (Ophiopogon bodinieri)等, 主要来自肾蕨科、棕榈科、槲蕨科、禾本科、百合科

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