Effects of Reforestation and Site Preparation Methods on Early Growth and Survival of Scots Pine (Pinus sylvestris L.) in South-Eastern Poland

Aleksandrowicz-Trzcińska, Marta; Drozdowski, Stanisław; Wołczyk, Zbigniew; Bielak, Kamil; Żybura, Henryk

doi:10.3390/f8110421

Cited by 17 publications

(7 citation statements)

References 52 publications

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“…However, given the paucity of similar studies, we can relevantly discuss, in particular, why the third order did not affect the height of natural regeneration. Stevens and Perkins [ 64 ] mention a correlation between tree height and relative size in this context, but they also question the taxonomic magnitude of this effect. Our data present that the occurrence of third-order branches tended to decrease with increasing stand density.…”

Section: Discussionmentioning

confidence: 99%

Measuring the Canopy Architecture of Young Vegetation Using the Fastrak Polhemus 3D Digitizer

Šleglová,

Brichta,

Bílek

et al. 2023

Sensors

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In the context of climate change conditions, addressing the shifting composition of forest stands and changes in traditional forest management practices are necessary. For this purpose, understanding the biomass allocation directly influenced by crown architecture is crucial. In this paper, we want to demonstrate the possibility of 3D mensuration of canopy architecture with the digitizer sensor Fastrak Polhemus and demonstrate its capability for assessing important structural information for forest purposes. Scots pine trees were chosen for this purpose, as it is the most widespread tree species in Europe, which, paradoxically, is very negatively affected by climate change. In our study, we examined young trees since the architecture of young trees influences their growth potential. In order to get the most accurate measurement of tree architecture, we evaluated the use of the Fastrak Polhemus magnetic digitizer to create a 3D model of individual trees and perform a subsequent statistical analysis of the data obtained. It was found that the stand density affects the number of branches in different orders and the heights of the trees in the process of natural regeneration. Regarding the branches, in our case, the highest number of branch orders was found in the clear-cut areas (density = 0.0), whereas the lowest branching was on-site with mature stands (density = 0.8). The results showed that the intensity of branching (assessed as the number of third-order branches) depends on the total number of branches of the tree of different branch orders but also on stand density where the tree is growing. An important finding in this study was the negative correlation between the tree branching and the tree height. The growth in height is lower when the branching expansion is higher. Similar data could be obtained with Lidar sensors. However, the occlusion due to the complexity of the tree crown would impede the information from being complete when using the magnetic digitizer. These results provide vital information for the creation of structural-functional models, which can be used to predict and estimate future tree growth and carbon fixation.

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Section: Discussionmentioning

confidence: 99%

Measuring the Canopy Architecture of Young Vegetation Using the Fastrak Polhemus 3D Digitizer

Šleglová,

Brichta,

Bílek

et al. 2023

Sensors

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“…Transparency is essential for the public and the stakeholders involved, to understand the reality of UAVsSS's ambitious reforestation prospects. For achieving this, research assessing the efficacy of UAVsSS should be conducted, and the companies should evaluate the success of natural forest growth versus seed sowing methods, analyze seed turnover rate amid climate change, and take into account the biases and factors that could influence the measurements [164][165][166]. Steps towards transparency should include increasing publications of white papers, and strategic partnerships with academic and research institutions, which will not only demonstrate the reality of UAVsSS as a supplementary reforestation method, but its successes, failures and potentials.…”

Section: Perspectives and Future Directions 61 The Need For Transparencymentioning

confidence: 99%

UAV-Supported Forest Regeneration: Current Trends, Challenges and Implications

Mohan

Richardson²,

Gopan³

et al. 2021

Remote Sensing

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Replanting trees helps with avoiding desertification, reducing the chances of soil erosion and flooding, minimizing the risks of zoonotic disease outbreaks, and providing ecosystem services and livelihood to the indigenous people, in addition to sequestering carbon dioxide for mitigating climate change. Consequently, it is important to explore new methods and technologies that are aiming to upscale and fast-track afforestation and reforestation (A/R) endeavors, given that many of the current tree planting strategies are not cost effective over large landscapes, and suffer from constraints associated with time, energy, manpower, and nursery-based seedling production. UAV (unmanned aerial vehicle)-supported seed sowing (UAVsSS) can promote rapid A/R in a safe, cost-effective, fast and environmentally friendly manner, if performed correctly, even in otherwise unsafe and/or inaccessible terrains, supplementing the overall manual planting efforts globally. In this study, we reviewed the recent literature on UAVsSS, to analyze the current status of the technology. Primary UAVsSS applications were found to be in areas of post-wildfire reforestation, mangrove restoration, forest restoration after degradation, weed eradication, and desert greening. Nonetheless, low survival rates of the seeds, future forest diversity, weather limitations, financial constraints, and seed-firing accuracy concerns were determined as major challenges to operationalization. Based on our literature survey and qualitative analysis, twelve recommendations—ranging from the need for publishing germination results to linking UAVsSS operations with carbon offset markets—are provided for the advancement of UAVsSS applications.

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“…In spruce stands at lower elevations, their transformation into mixed stands corresponds in composition to stands close to nature (Hanewinkel, Pretzsch 2000;Spiecker et al 2004;Teuffel et al 2005;Souček, Tesař 2008;Poleno et al 2009;Švec et al 2015). In Scots pine stands, existing clearings and clearings created during stand regeneration are shrinking, and natural regeneration methods are increasingly applied as part of shelterwood methods of management (Bielak et al 2014;Spathelf et al 2015;Bílek et al 2016;Drössler et al 2018;Aleksandrowicz-Trzcińska et al 2017Brichta et al 2020). The shelterwood method of natural regeneration is more favourable concerning the nature of microhabitats during the ongoing global climate change (Matías, Jump 2012;Aleksandrowicz-Trzcińska et al 2014Vítámvás et al 2019;Brichta et al 2020).…”

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confidence: 99%

Potential of mixed Picea abies (L.) Karst. and Pinus sylvestris L. forests in lowland areas of Central Bohemia

Brabec,

Brichta,

Vacek

et al. 2023

J. For. Sci.

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Mixed forests play a key role in terms of stability, production potential, and adaptation to climate change. In addition, the studied Norway spruce [Picea abies (L.) Karst.] and Scots pine (Pinus sylvestris L.) belong to the most economically important tree species in Europe. The objectives were to determine the effect of the species composition of these two tree genera on the production, structure, diversity, and growth of mixed stands at lower elevations in the Czech Republic. Based on dendroecological samples, research was also carried out on the influence of climatic factors and climate change on the radial growth of these trees of interest. Mixed forests showed higher timber production by 29.8% compared to spruce and pine monocultures. The production of mature stands ranged from 328 to 479 m 3 •ha -1 . Spruce achieved higher radial growth, but its growth variability was higher than that of pine. Compared to precipitation, temperatures had a greater influence on the radial growth of both tree species, especially in the growing season. In terms of diversity, mixed stands achieved significantly higher structural differentiation and overall diversity compared to monospecific variants. Mixed stands can achieve higher production potential, diversity, and especially resistance to climatic extremes in the lowland regions of the Czech Republic. The differences between mixed stands and monocultures, i.e. the effect of tree species mixing, depend on the appropriate proportions of tree species and their spatial pattern.

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Effects of Reforestation and Site Preparation Methods on Early Growth and Survival of Scots Pine (Pinus sylvestris L.) in South-Eastern Poland

Cited by 17 publications

References 52 publications

Measuring the Canopy Architecture of Young Vegetation Using the Fastrak Polhemus 3D Digitizer

Measuring the Canopy Architecture of Young Vegetation Using the Fastrak Polhemus 3D Digitizer

UAV-Supported Forest Regeneration: Current Trends, Challenges and Implications

Potential of mixed Picea abies (L.) Karst. and Pinus sylvestris L. forests in lowland areas of Central Bohemia

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