基于复杂网络理论的三江并流地区森林碳储量生态空间网络

IF 3.7 2区 农林科学 Q1 FORESTRY
Xiechen Song , Chang Liu , Chengcheng Zhang , Meng Wang
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引用次数: 0

摘要

本研究采用降尺度方法,结合形态空间格局分析(MSPA)和最小累积阻力(MCR)模型,构建了该区域森林碳储量的生态空间网络。基于复杂网络理论,利用网络节点的拓扑结构和碳储量对生态网络进行了耦合协调分析,并在多尺度尺度上对森林生态网络进行了分析。结果表明,三江流域碳固存存在显著的空间异质性,高海拔地区碳浓度较高,主要集中在三江流域的中西部地区。最初的生态网络包括20个节点和47个廊道,揭示了生态系统的相互作用。耦合协调分析确定了6个次优节点,促进了边缘优化,增加了43条走廊,增强了网络的稳定性。多尺度分析显示,在不同尺度上有3个重叠的生态源区和6个关键廊道。网络指标(封闭性、连通性、复杂性)随着空间尺度的增加而降低,在较小尺度下表现最佳。优化后的网络在保持固碳功能的同时,提高了结构稳定性和连通性。该方法将复杂网络理论与生态分析相结合,为森林可持续管理和区域碳捕获策略提供了科学框架。该方法通过确定优先保护区和连接路径来支持有针对性的生态恢复,为平衡生态脆弱山区的生态系统保护与气候目标提供了实践见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ecospatial network of forest carbon stocks in three parallel rivers region based on complex network theory
This study employed a downscaling method to estimate forest carbon stocks in the region, combining morphological spatial pattern analysis (MSPA) and the minimum cumulative resistance (MCR) model to construct an ecological spatial network. Based on complex network theory, a coupled coordination analysis was conducted using the topology and carbon stocks of the network nodes to optimize the ecological network and analyzed the forest ecological network at a multiscale scale. The results revealed significant spatial heterogeneity in carbon sequestration, with higher concentrations predominantly located in the central and western regions of the Three Rivers area at elevated altitudes. The initial ecological network comprised 20 nodes and 47 corridors, revealing ecosystem interactions. Coupling coordination analysis identified 6 suboptimal nodes, prompting edge optimization that added 43 corridors and enhanced network stability. Multiscale analysis showed 3 overlapping ecological source areas across scales and 6 key corridors. Network metrics (closure, connectivity, complexity) decreased with increasing spatial scale, performing best at smaller scales. The optimized network demonstrated improved structural stability and connectivity while maintaining carbon sequestration functions. This integrated approach combining complex network theory with ecological analysis provides a scientific framework for sustainable forest management and regional carbon capture strategies. The methodology supports targeted ecological restoration by identifying priority conservation areas and connectivity pathways, offering practical insights for balancing ecosystem preservation with climate goals in ecologically fragile mountainous regions.
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来源期刊
Forest Ecology and Management
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.
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