Short-term effects of whole-tree harvesting on understory plant species diversity and cover in two Norway spruce sites in southern Norway

Økland, Tonje; Nordbakken, Jørn‐Frode; Lange, Holger; Røsberg, Ingvald; Clarke, Nicholas

doi:10.1080/02827581.2016.1164889

Cited by 12 publications

(4 citation statements)

References 41 publications

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“…Both species richness and abundance of understory vascular plants were higher in compartments treated with disturbance than in unharvested controls, which was expected due to increased availability of above-and below-ground resources for understory vegetation that accompanied removal of the canopy (Hart and Chen 2006). Graminoid cover increases after treatment were an important component of the response in overall cover, corroborating results of prior studies of disturbance effects on boreal understory vegetation (Macdonald and Fenniak 2007;Craig and Macdonald 2009;Økland et al 2016). In mixed and deciduous forests, greater increases in graminoid cover in the harvest + burn treatment than in the harvesting alone treatment could be attributed to reduced organic-layer depths in burned sites that supported the growth of fire-specialist species (Rees and Juday 2002).…”

Section: Discussionsupporting

confidence: 84%

Understory vascular plant responses to retention harvesting with and without prescribed fire

2019

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Wildfire is the predominant natural disturbance in the boreal forests of western Canada. Natural disturbance based forest management involves the use of retention harvesting to retain stand structural diversity after harvest; however, unlike fire, this partial harvesting technique does not cause combustion of the forest floor. Application of prescribed burning to areas treated with retention harvesting might emulate the influence of wildfires more effectively than harvesting alone. We compared understory vascular plant diversity, abundance, and composition between forest stands subjected to dispersed retention harvesting (10% retention) with and without prescribed burning 1, 6, and 11 or 12 years after burning. Untreated forest was included as a reference. Research was conducted in conifer-dominated, mixedwood, and deciduous-dominated boreal forest stands in northwestern Alberta, Canada. In deciduous-dominated stands, burned areas of retention harvested stands had higher species richness and greater cover than did unburned areas. In all three forest cover types, effects of harvest with and without burn on species richness, cover, and composition were still evident a decade after disturbance. Fire-adapted species benefited most from the prescribed burn treatment. The combination of prescribed burning with retention harvesting can be considered a useful option in forest management that aims to emulate natural disturbance.

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Section: Discussionsupporting

confidence: 84%

Understory vascular plant responses to retention harvesting with and without prescribed fire

2019

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“…Cut-to-length and tree length contribute to the build-up of the SOC pool [94], while the full tree method increases ecosystem respiration and decreases total ecosystem and SOC stocks [ [110]]. Soil respiration rates increase following harvesting but are substantially higher after full-tree harvest [119]. Johnson and Curtis [58] reported that harvest residues left on site after cut-to-length and tree length treatments increased SOC by + 18%, while full tree harvest caused a decrease (− 6%) over the long term.…”

Section: Harvesting Treatments: Clear-cuts Versus Partial Cutsmentioning

confidence: 99%

Forest Carbon Management: a Review of Silvicultural Practices and Management Strategies Across Boreal, Temperate and Tropical Forests

et al. 2021

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Purpose of Review Carbon sequestration and storage in forest ecosystems is often promoted as a solution for reducing CO2 concentrations in the atmosphere. Yet, our understanding is lacking regarding how forest management strategies affect the net removal of greenhouse gases and contribute to climate change mitigation. Here, we present a review of carbon sequestration and stock dynamics, following three strategies that are widely used in boreal, temperate and tropical forests: extensive forest management, intensive forest management and old-growth forest conservation. Recent Findings Several studies show that specific forest management strategies can improve carbon sequestration capacity and soil carbon storage. Within these studies, the old-growth forest conservation strategy results in greater carbon storage in soils than do extensive and intensive forest management. Intensive forest management enhances forest carbon sequestration capacity through afforestation using fast-growing species, mechanical soil preparation from low to moderate intensity and N fertilization. Extensive forest management is an intermediate compromise regarding carbon sequestration and soil carbon storage, between conservation and intensive forest management strategies. With respect to silvicultural treatments, partial cutting is a practice that increases forest carbon sequestration rates and maintains higher carbon storage in soils compared to clear-cuts. Each silvicultural practice that is discussed in this review showed a similar effect on forest carbon in all biomes, although the magnitude of these effects differs mainly in terms of heterotrophic respiration. Summary To achieve sustainable management and fulfill industrial demand and profitability, specific gaps must be dealt with to improve our scientific knowledge regarding forest carbon sequestration in a climate change context, mainly through the integration of the three aforementioned strategies in a functional zoning approach at the landscape scale. We present a review with promising strategies for guiding sustainable forest management in such a global context.

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“…Drawing is performed using Excel software, and statistical analysis of variance analysis, t-test, multiple comparison (Duncan test), correlation analysis and principal component analysis are performed using SPSS 16.0 software (Økland and Nordbakken, 2016).…”

Section: Data Processing and Analysismentioning

confidence: 99%

Correlation Between Plant Diversity and the Physicochemical Properties of Soil Microbes

Sun¹

2019

Appl. Ecol. Env. Res.

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OBJECTIVE: To study the correlation between plant diversity and the physicochemical properties of soil microbes. METHODS: The determination of the chemical properties of farmland soil in the research area can be achieved by potentiometer method, automatic analyzer method, molybdenumantimony anti-colorimetric method and gas chamber method. Based on the determination results, the relationship between plant diversity and soil microbial physical and chemical properties in the national nature reserve in rocky desertification area can be analyzed. RESULTS: The physical and chemical properties of soil in different grades of rocky desertification were significantly different. With the increase of rocky desertification, soil physical and chemical properties showed a response process from degradation to improvement. Soil organic matter, nitrogen, capillary water holding capacity, bulk density and porosity were significantly correlated with plant diversity, which played an important role in improving soil physical and chemical properties and promoting the restoration of plant diversity. Factor analysis showed that plant diversity at different levels in national nature reserves had different correlation with soil physical and chemical factors at different levels. The ratio between the significant correlation factors and the number of plants showed that the diversity of trees was greater than that of shrubs, and the diversity of shrubs was greater than that of herbaceous plants. Tree plant diversity factor plays a leading role. CONCLUSION: With the proposed method the physicochemical properties of soil microbes can be effectively studied.

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Short-term effects of whole-tree harvesting on understory plant species diversity and cover in two Norway spruce sites in southern Norway

Cited by 12 publications

References 41 publications

Understory vascular plant responses to retention harvesting with and without prescribed fire

Understory vascular plant responses to retention harvesting with and without prescribed fire

Forest Carbon Management: a Review of Silvicultural Practices and Management Strategies Across Boreal, Temperate and Tropical Forests

Correlation Between Plant Diversity and the Physicochemical Properties of Soil Microbes

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