森林管理的多样化可以减轻风害风险并保持生物多样性

IF 2.6 2区 农林科学 Q1 FORESTRY
Mária Potterf, Kyle Eyvindson, Clemens Blattert, María Triviño, Ryan C. Burner, Daniel Burgas, Mikko Mönkkönen
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引用次数: 0

摘要

减轻未来森林风险、保障木材收入和改善生物多样性是当前北方森林管理的关键考虑因素。轮作林业的替代方案可能发挥着重要作用,但它们在不断变化的气候下的表现如何仍不清楚。我们使用了一个北方森林生长模拟器来探索传统的采伐、轮作长度、间伐强度、最终采伐后剩余树木数量的增加(绿树保留)以及连续覆盖森林的程度如何影响林分水平的风害概率、木材产量、枯木量和森林物种的栖息地。我们以常规轮作林业为基准,比较了参考情景和两种气候变化情景下的替代管理适应情况。与管理适应相比,气候变化增加了木材总产量,对生物多样性的影响较小。与往常相比,缩短轮作长度减少了风害的可能性,但也减少了枯木量和我们重点物种的适宜栖息地。连续覆盖森林、不疏林管理和延长轮作长度是有利于生物多样性的互补方法,具有提高木材收入、降低风害风险和有利于原生林结构的各自作用。然而,广泛采用缩短轮作长度来降低风害风险可能不利于森林生物多样性。为了保护景观上的森林生物多样性,缩短轮作长度可以与广泛应用促进原生林结构的制度相辅相成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Diversification of forest management can mitigate wind damage risk and maintain biodiversity

Diversification of forest management can mitigate wind damage risk and maintain biodiversity

Mitigating future forest risks, safeguarding timber revenues and improving biodiversity are key considerations for current boreal forest management. Alternatives to rotation forestry likely have an important role, but how they will perform under a changing climate remains unclear. We used a boreal forest growth simulator to explore how variations on traditional clear-cutting, in rotation length, thinning intensity, and increasing number of remaining trees after final harvest (green tree retention), and on extent of continuous cover forestry will affect stand-level probability of wind damage, timber production, deadwood volume, and habitats for forest species. We used business-as-usual rotation forestry as a baseline and compared alternative management adaptations under the reference and two climate change scenarios. Climate change increased overall timber production and had lower impacts on biodiversity compared to management adaptations. Shortening the rotation length reduced the probability of wind damage compared to business-as-usual, but also decreased both deadwood volume and suitable habitats for our focal species. Continuous cover forestry, and management with refraining from thinnings, and extension of rotation length represent complementary approaches benefiting biodiversity, with respective effects of improving timber revenues, reducing wind damage risk, and benefiting old-growth forest structures. However, extensive application of rotation length shortening to mitigate wind damage risk may be detrimental for forest biodiversity. To safeguard forest biodiversity over the landscape, shortening of the rotation length could be complemented with widespread application of regimes promoting old-growth forest structures.

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来源期刊
CiteScore
5.10
自引率
3.60%
发文量
77
审稿时长
6-16 weeks
期刊介绍: The European Journal of Forest Research focuses on publishing innovative results of empirical or model-oriented studies which contribute to the development of broad principles underlying forest ecosystems, their functions and services. Papers which exclusively report methods, models, techniques or case studies are beyond the scope of the journal, while papers on studies at the molecular or cellular level will be considered where they address the relevance of their results to the understanding of ecosystem structure and function. Papers relating to forest operations and forest engineering will be considered if they are tailored within a forest ecosystem context.
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