文献类型：期刊文献

中文题名：自然演替15年的亚热带人工混交林物种多样性与群落结构恢复特征

英文题名：Recovery Characteristics of Species Diversity and Community Structure in Subtropical Mixed Plantations after 15 Years of Natural Succession

作者：盘李军[1] 杜健[2] 叶小萍[1] 许涵[3] 李艳朋[3] 陈兆聪[1]

第一作者：盘李军

机构：[1]佛山市云勇林场,广东佛山528518;[2]赣州市林业发展服务中心,江西赣州341000;[3]中国林业科学研究院热带林业研究所/海南尖峰岭森林生态系统国家野外科学观测研究站/广东珠江三角洲农田防护林生态系统定位观测研究站,广东广州510520

年份：2025

卷号：54

期号：1

起止页码：62-70

中文期刊名：亚热带植物科学

外文期刊名：Subtropical Plant Science

基金：中国林业科学研究院基本科研业务费专项资助(CAFYBB2021ZH002、CAFYBB2021SY002、CAFYBB2022SY014);广东省基础与应用基础研究基金(2024A1515011100)。

语种：中文

中文关键词：人工混交林;自然演替;物种多样性;群落结构;恢复特征

外文关键词：mixed plantation;natural succession;species diversity;community structure;recovery characteristics

分类号：Q945

摘要：物种多样性和群落结构的恢复能力是判断人工混交林营建成功与否的重要指标。以2005年对杉木Cunninghamia lanceolata纯林进行皆伐并种植阔叶乡土树种后形成的人工混交林为研究对象,基于在上述典型区域建设的6.48 hm2样地2020年首次本底调查数据,探索亚热带人工混交林物种多样性和群落结构的恢复特征。结果表明:(1)云勇林场样地在经过15年的自然恢复后,共有55科121属169种植物进入群落并成功定殖,表明亚热带人工混交林具有较强的物种多样性恢复能力;(2)云勇林场样地重要值排名前10位的树种中人为引入物种有7种,表明早期人为引入物种对自然恢复15年的人工混交林群落结构仍具有重要影响;(3)云勇林场样地独立植株个体的平均胸径为8.60 cm,植株径级分布总体呈为倒“J”形,表明群落更新良好且处于相对稳定状态;(4)早期人为引入物种能够实现自然更新,但由于恢复时间较短,其径级结构主要表现为钟形曲线。综上所述,亚热带人工混交林具有较强的植物物种多样性和群落结构恢复能力,该研究结果可为优化亚热带地区的森林恢复策略提供科技支撑。
The resilience of species diversity and community structure are important indicators to judge the success of mixed plantation construction.This study was conducted in the subtropical mixed plantations formed after the renovation of pure forest of Cunninghamia lanceolata in 2005 in Yunyong forest farm,Foshan City,Guangdong Province.Recovery characteristics of species diversity and community structure were analyzed based on the 6.48 hm2 plot which was set up in the typical areas of the above plantations in 2020.The results were as follows:(1)169 woody plant species belonging to 121 genera in 55 families colonized the community after 15 years of natural restoration,indicating the subtropical mixed plantations had a strong conservation ability of species diversity.(2)Seven of the top ten species in terms of importance value were artificially introduced species,indicating that early introduced species still had an important effect on the community structure of subtropical mixed plantations after 15 years of natural succession.(3)The average diameter at breast height(DBH)of all individuals was 8.60 cm,and the DBH distribution was an inverse-J shape,indicating the community had normal regeneration ability.(4)Early artificially introduced species could also have normal regeneration ability,although their DBH shapes mainly showed a bell curve due to the short recovery time.The results revealed the subtropical mixed plantations had strong conservation ability of species diversity and community structure.These findings could provide a theoretical basis for optimizing forest restoration strategies in subtropical areas.