野火后的中期土壤恢复过程中,火后管理和生物群落发展相互作用

IF 3.7 2区 农林科学 Q1 FORESTRY
M. García-Carmona , A. Girona-García , Jan Jacob Keizer , Bruna R.F. Oliveira , Fuensanta García-Orenes , Jorge Mataix-Solera
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引用次数: 0

摘要

了解生物结壳苔藓在野火后土壤恢复中的作用对于评估受管理生态系统的恢复能力非常必要。本研究的目的是调查葡萄牙中北部桉树种植园两种截然不同的火后管理策略对土壤恢复的中期影响。野火发生六年后,我们研究了抢救性采伐和使用采伐残留物的两种覆盖率(标准覆盖率为 8.0 兆克/公顷-1,降低覆盖率为 2.6 兆克/公顷-1)对土壤特性的遗留影响,并探讨了苔藓生物簇与森林管理措施对土壤的相互作用。我们的研究结果表明,伐木作业后,土壤对物理干扰的恢复能力很强,对其理化性质没有持续的负面影响。虽然森林残留物覆盖物在六年后对土壤的影响微乎其微,但我们观察到了与苔藓生物簇之间有趣的相互作用。在没有苔藓覆盖的情况下,以标准覆盖率将木质残留物与土壤直接接触可提高养分含量和生化活性,这可能是由于加速了分解过程。无论采用哪种管理方式,我们的研究都强调了苔藓生物簇在中期改善土壤团聚和生化过程中的作用。然而,在这些土壤中观察到的严重憎水性可能阻碍了生物簇的进一步扩展。了解森林管理方法对野火后土壤恢复的影响,对于指导旨在促进易发生火灾的森林生态系统恢复和复原的战略至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Post-fire management and biocrust development interact in mid-term soil recovery after a wildfire

Understanding the role of biocrust-forming mosses in soil recovery after wildfires is necessary for assessing the resilience of managed ecosystems. The purpose of this study was to investigate the mid-term impacts of two contrasting post-fire management strategies on soil recovery in eucalypt plantations in north-central Portugal, where a high cover of biocrust-forming mosses developed post-fire, contributing to erosion control. Six years after a wildfire, we examined the legacy effects of salvage logging and two rates of mulch application using logging residues (a standard rate of 8.0 Mg ha-1 and a reduced rate of 2.6 Mg ha-1) on soil properties, and explored the interaction between moss biocrusts and forest management practices on soils. Our findings reveal the resilience of soils to physical disturbance after logging operations, with no persistent negative effects on their physicochemical properties. Although forest residue mulches showed minimal influence on soils after six years, an interesting interaction with moss biocrusts was observed. In the absence of moss cover, direct contact of wood residues with soil at the standard mulch rate promoted higher nutrient content and biochemical activity, potentially attributed to accelerated decomposition processes. Regardless of the management applied, our study highlights the role of moss biocrusts in improving soil aggregation and biochemical processes in the mid-term. However, the severe water repellency observed in these soils may have impeded further biocrust expansion. Understanding the implications of forest management practices on soil recovery after wildfires is imperative for guiding strategies aimed at promoting ecosystem recovery and resilience in fire-prone managed forest ecosystems.

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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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