喀斯特森林林下生物多样性：贵阳马尾松纯林与混交林的比较

IF 3.7 2区农林科学 Q1 FORESTRY

Forest Ecology and Management Pub Date : 2025-04-29 DOI:10.1016/j.foreco.2025.122753

Gilbert Kumilamba, Shujun Liu, Zhijie Wang , Jinghao Li, Yijin Zhan, Xiaoqing Lu

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引用次数: 0

摘要

城市喀斯特山地生态系统支持独特的生态群落，在维持生物多样性和生态系统服务方面发挥关键作用。研究了贵阳城市喀斯特山地景观中马尾松纯林和混交林的林下植物多样性，重点研究了灌木层和草本层。研究旨在评估这些森林类型之间的物种丰富度、群落结构和生态组成的差异，这些差异对森林恢复策略至关重要。本研究采用多尺度采样设计，结合卫星影像、野外调查和NMDS、bry - curtis距离矩阵等先进统计方法，对物种组成和生物多样性指数进行分析。结果表明：混交林灌木层的物种丰富度和均匀度高于纯林，灌木层的物种丰富度差异显著，草本层差异不显著；此外，灌木层和草本层均有明显的科组成。beta多样性分析表明，混交林的物种组成周转更大，表明其生态条件更多样化。纯林的物种分布更为均匀，β多样性较低，少数物种占优势地位。本研究通过强调混交林在促进城市喀斯特灌木层环境中生物多样性和生态恢复力方面的价值，加深了我们对植物林下动态的理解。研究结果为加强这些环境脆弱地区的生物多样性保护和森林恢复计划提供了重要信息。

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Understory biodiversity in Karst forests: A comparison of pure (Pinus massoniana) and mixed forests in Guiyang, China

Urban karst mountain ecosystems support unique ecological communities that play a crucial role in maintaining biodiversity and ecosystem services. This study investigated the understory plant diversity in pure (Pinus massoniana) and mixed forests within urban karst mountain landscapes of Guiyang, focusing on the shrub and herb layers. The research aimed to assess the differences in species richness, community structure, and ecological composition between these forest types, which are integral to forest restoration strategies. The study employed a multi-scale sampling design, integrating satellite imagery, field surveys, and advanced statistical methods such as NMDS and Bray-Curtis distance matrices to analyze species composition and biodiversity indices. The results reveal that mixed forests exhibit higher species richness and evenness in the shrub layer than pure forests, with significant differences in species abundance observed in the shrub layer but not in the herb layer. Additionally, distinct family compositions were noted in both the shrub and herb layers. Greater species composition turnover in mixed forests is shown by beta diversity analysis, indicating more diverse ecological conditions. In contrast, pure forests show more homogenous species distributions, with lower beta diversity and a dominance of a few species. This study advances our understanding of plant understory dynamics by highlighting the value of mixed forests in fostering biodiversity and ecological resilience in urban karst settings in the shrub layer. The results provide important information for conservation and forest restoration plans aimed at enhancing biodiversity in these environmentally delicate regions.

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来源期刊

Forest Ecology and Management 农林科学-林学

CiteScore

7.50

自引率

10.80%

发文量

665

审稿时长

39 days

期刊介绍： Forest Ecology and Management publishes scientific articles linking forest ecology with forest management, focusing on the application of biological, ecological and social knowledge to the management and conservation of plantations and natural forests. The scope of the journal includes all forest ecosystems of the world. A peer-review process ensures the quality and international interest of the manuscripts accepted for publication. The journal encourages communication between scientists in disparate fields who share a common interest in ecology and forest management, bridging the gap between research workers and forest managers. We encourage submission of papers that will have the strongest interest and value to the Journal''s international readership. Some key features of papers with strong interest include: 1. Clear connections between the ecology and management of forests; 2. Novel ideas or approaches to important challenges in forest ecology and management; 3. Studies that address a population of interest beyond the scale of single research sites, Three key points in the design of forest experiments, Forest Ecology and Management 255 (2008) 2022-2023); 4. Review Articles on timely, important topics. Authors are welcome to contact one of the editors to discuss the suitability of a potential review manuscript. The Journal encourages proposals for special issues examining important areas of forest ecology and management. Potential guest editors should contact any of the Editors to begin discussions about topics, potential papers, and other details.