The effect of spruce plantation density on resilience of mixed forests in the Perm Krai

Ludmila A. Ivanchina and Sergei V. Zalesov
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Sergei V. Zalesov: Department of Forestry, Institute of Forest and Natural Management, Ural State Forest Engineering University, Yekaterinburg, Russia

Journal of Forest Science, 2019, vol. 65, issue 7, 263-271

Abstract: Over the course of the last few decades, many countries across the globe have experienced mass desiccation of spruce plantations. The subject of our research was the spruce forests of the Russian Perm Krai's mixed forest zone. Spruce is a shade-tolerant tree species and low plantation density may adversely affect the spruce health. The aim of this research is to establish how influential the spruce stand density is on causing desiccation in mixed zones in the Perm Krai. The results of an on-site survey which had recorded spruce desiccation in 2017 were analysed. Within the boundaries of the aforementioned forest areas, 2017 saw the desiccation of spruce trees in 301 forest allotments covering an area of 5,343.7 ha. The value of the weighted average category of spruce forest health in Prikamye varies from 2.7 (severely weakened) to 4.2 (desiccating), and the percentage of the volume of spruce deadwood varies from 17% to 59.5%. When the spruce stand density rises from 0.4 to 0.8, spruce stand resilience to desiccation increases.

Keywords: Perm Krai's mixed coniferous-deciduous forest zone; stand density; spruce forest desiccation; spruce forest resilience; weighted average category of health; deadwood volume (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnljfs:v:65:y:2019:i:7:id:14-2019-jfs

DOI: 10.17221/14/2019-JFS

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