文献类型：期刊文献

中文题名：华北落叶松人工林林下物种多样性特征研究

英文题名：Undergrowth Species Diversity Characteristics of Larix principis-rupprechtii Plantation

作者：康义[1,2] 辛学兵[1,3] 裴顺祥[1,3] 郭慧[1,3] 法蕾[1,3] 吴莎[1,3] 马淑敏[1,3] 吴迪[1,3]

第一作者：康义

机构：[1]中国林业科学研究院华北林业实验中心,北京102300;[2]河北省塞罕坝机械林场,河北围场068450;[3]北京九龙山暖温带森林国家长期科研基地,北京102300

年份：2025

卷号：40

期号：1

起止页码：23-31

中文期刊名：西北林学院学报

外文期刊名：Journal of Northwest Forestry University

收录：;北大核心:【北大核心2023】；

基金：“十三五”国家重点研发计划(2016YFD060020304);中央级公益性科研院所基本科研业务费专项(CAFYBB2020ZB005)。

语种：中文

中文关键词：华北落叶松人工林;物种多样性;物种重要值;林下植物;塞罕坝

外文关键词：Larix principis-rupprechtii plantation;species diversity;species importance value;undergrowth species;Saihanba region

分类号：S718.542

摘要：对河北省塞罕坝第三乡林场不同营林区的华北落叶松人工林林下物种多样性进行调查,对比分析不同营林区内林下植被组成及灌木层和草本层的物种重要值、结构特征和物种多样性指数(物种丰富度指数、Simpson优势度指数、Shannon-Wiener多样性指数和Pielou均匀度指数),探究林下植被物种重要值及多样性指数在3个营林区内的变化差异。结果表明,3个营林区内华北落叶松人工林林下植物共116种,隶属44科86属。林下植物的科、属、种总数在3个营林区中表现一致,即母子沟最高,莫里莫次之,北岔最低。灌木层优势科均以蔷薇科居多,草本层优势科则各有不同,显示出明显的地区差异性。莫里莫营林区灌草层的指数值高于其他2个营林区,母子沟居中,北岔最低。莫里莫营林区高灌草层多样性测度指数可能反映该地区生态系统的较高健康度和韧性,而母子沟的中等多样性测度指数可能表明其生态系统正处于过渡状态,北岔营林区的低多样性测度指数暗示生态系统可能面临潜在风险。研究结果对第三乡林场不同营林区内华北落叶松人工林生态系统的健康管理提供了数据支撑。
The undergrowth species diversity of Larix principis-rupprechtii plantations in different forest sections of the Forest Farm of Saihanba Third Township in Hebei Province was investigated.The composition of undergrowth species,species importance value,structural characteristics and species diversity indices(richness index,Simpson dominance index,Shannon-Wiener diversity index and Pielou evenness index)of the shrub and herb layers were compared and analyzed to explore the difference of species importance value and diversity index of undergrowth species in three forest sections(including Muzigou,Molimo,and Beicha)managed by the forest farm.Totally,116 undergrowth species were found in three forest sections,belonging to 44 families and 86 genera.The number of families,genera,and species of undergrowth plants presented a consistent pattern:the highest in Muzigou,followed by Molimo,and the lowest in Beicha.The dominant families of shrub layer in three forest sections was Rosaceae,while in herb layer,the dominant families varied,demonstrating significant regional differences.The index value for the shrub and herb layers in Molimo was higher than those in other two sections(Muzigou was in the middle and Beicha was the lowest).The high diversity index of the shrub and herb layers in Molimo forest section may reflect the high health and resilience of the ecosystem in this region,while the moderate diversity index in Muzigou forest section may indicate that its ecosystem is in a transitional state.The low diversity index in Beicha may suggest potential risks faced by the ecosystem.The results provide data support for the health management of L.principis-rupprechtii plantation ecosystem in different forest sections of Saihanba forest region.