Driving factors for natural tree rejuvenation in anthropogenic pine (Pinus sylvestris L.) forests of NE Germany

Mirschel, Frank; Zerbe, Stefan; Jansen, Florian

doi:10.1016/j.foreco.2010.11.025

Cited by 31 publications

(20 citation statements)

References 42 publications

(54 reference statements)

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“…This confirms previous findings that the abundance of pine is related to the vicinity of old trees due to high seedfall, slower invasion of competing vegetation, prolonged recruiment and low seed mortality [31,32]. Pine seedlings are very sensitive to drought stress and the dry conditions in large gaps might result in high mortality [33]. In the specific condition of urban woodland, especially bigger sunny gaps can be intensively trampled and thus not favorable for initial survival of pine and birch seedlings [7].…”

Section: Discussionsupporting

confidence: 88%

“…Oak seedlings and saplings are less sensitive to the competition of forest floor vegetation [33]. Moreover, dense moss and herb vegetation cover might favor the establishment of this species, and also growth, especially for seedlings <50 cm.…”

Section: Discussionmentioning

confidence: 99%

“…In the specific condition of urban woodland, especially bigger sunny gaps can be intensively trampled and thus not favorable for initial survival of pine and birch seedlings [7]. Mirschel et al [33] found a negative correlation of pine seedling density to cover of the herb and shrub layer, especially of V. myrtillus. The lower establishment occurred due to a thicker litter layer in moist habitats.…”

Section: Discussionmentioning

confidence: 99%

“…Birch is one of the least shade-tolerant species in boreal forests and less tolerant to low soil moisture and nutrient contents, and it can cope better with vegetation than pine [32,33]. Birch growth and establishment have been shown to be positively related with gaps [7,10].…”

Section: Discussionmentioning

confidence: 99%

“…In addition, seed dispersal is not a problem for oak establishment, as the European jay (Garrulus glandarius L.) transports acorns [32,33]. Oak can also grow on less fertile soils in Latvia [36], as in other parts of Europe [37,38].…”

Section: Discussionmentioning

confidence: 99%

See 4 more Smart Citations

Tree Species Establishment in Urban Forest in Relation to Vegetation Composition, Tree Canopy Gap Area and Soil Factors

Jankovska

Brūmelis

Nikodemus

et al. 2015

Forests

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Abstract:The study of density and growth of pine, birch and oak seedlings and saplings in canopy gaps in the urban boreal forest in Riga, Latvia, indicates that natural regeneration can increase diversity in small gaps caused by tree mortality, and can ensure conversion from even-aged pine forest. Abundant regeneration in small gaps showed that light (gap area) was only one of the factors affecting tree regeneration in the gaps. The depth of the O layer and pH were suggested to be important factors for the establishment and growth of pine and birch. For oak, the main factors for establishment and growth were favorable moisture, higher pH and N concentration. Knowledge of ecological factors affecting the establishment of seedlings and growth of saplings of the most common trees species in the urban boreal forest is needed to predict successional trajectories and to aid management.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Tree Species Establishment in Urban Forest in Relation to Vegetation Composition, Tree Canopy Gap Area and Soil Factors

Jankovska

Brūmelis

Nikodemus

et al. 2015

Forests

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Influencing factors on regeneration and seedling survival prediction in Larix principis‐rupprechtii plantations in northern China

Wei,

Liang

2024

Land Degrad Dev

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The natural regeneration of forest ecosystems is crucial for their sustainability, but uncertainties have impeded the regeneration of some tree species. Identifying influencing factors and effective strategies to enhance seedling survival and growth is essential. We investigated factors affecting the natural regeneration of Larix principis‐rupprechtii and provided insights into seedling survival and growth. Eighteen artificial L. principis‐rupprechtii forest plots were established and monitored for 3 years. A logistic regression analysis and generalized linear models were used to investigate the influence of stand age, diameter at ground level, height, and other microhabitat factors on seedling regeneration. The microhabitat factors significantly influenced the overall L. principis‐rupprechtii regeneration density, as well as the density and growth of regenerated trees in different height classes. The area under the curve values for total nitrogen (0.796), total phosphorus (0.726), soil moisture (0.759), and litter thickness (0.633) were the highest, indicating a significant impact on the survival rate and mortality of the seedlings. Among these values, total nitrogen sensitivity (0.857) and specificity (0.810) were the highest, and the optimal threshold was 0.940. The survival rate decreased with increasing forest age, and the stands aged 4–7 years with a height of 1–2.5 m and a diameter at the ground level of approximately 2 cm constituted a relatively vulnerable and critical set of conditions for the survival of L. principis‐rupprechtii seedlings. The model showed that at 12 years old, L. principis‐rupprechtii trees were no longer vulnerable to mortality. The Kaplan–Meier model predicted future seedling survival through the construction of the comprehensive influence value and the measured seedling survival number. The model can be used to evaluate the survival rate for the final regeneration of a species, and targeted artificial seeding or replanting can improve the proportion of seedlings that survive. Our findings contribute to elucidating the factors affecting the natural regeneration of forest species and provide valuable insights for the development of effective regeneration strategies.

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Forests

Zerbe¹

2023

Restoration of Ecosystems – Bridging Nature and Humans

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Driving factors for natural tree rejuvenation in anthropogenic pine (Pinus sylvestris L.) forests of NE Germany

Cited by 31 publications

References 42 publications

Tree Species Establishment in Urban Forest in Relation to Vegetation Composition, Tree Canopy Gap Area and Soil Factors

Tree Species Establishment in Urban Forest in Relation to Vegetation Composition, Tree Canopy Gap Area and Soil Factors

Influencing factors on regeneration and seedling survival prediction in Larix principis‐rupprechtii plantations in northern China

Forests

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