Article
Forestry
Michal Allman, Zuzana Dudakova, Martin Jankovsky, Vladimir Jusko, Jan Merganic
Summary: Close-to-nature forestry using low-impact harvesting technologies can effectively manage forests with minimal disturbance to residual stands and forest soils. The size of wounds from logging operations ranged from 11-50 cm^2 and the disturbance was not significantly affected by the intensity of the harvesting operations. Soil bulk density was influenced by longitudinal slope, while penetration resistance was affected by moisture content and coarse fragment content. Overall, these technologies are viable options for environmentally-friendly forest management.
Article
Forestry
Christoph Leuschner, Eike Feldmann, Viliam Pichler, Jonas Glatthorn, Dietrich Hertel
Summary: Forest soils are important reservoirs of carbon in the biosphere and play a key role in the global carbon cycle. This study compared primeval and managed forests in the western Carpathians and found that primeval forests have significantly higher soil organic carbon stocks, particularly in the subsoil. Availability of certain nutrients in the soil was found to have a negative effect on soil organic carbon stocks. This study highlights the importance of primeval forest as a reference for assessing forest management effects on carbon storage.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Forestry
Ramezanali Akbari Mazdi, Asadollah Mataji, Asghar Fallah
Summary: This study investigated the dynamics of canopy gaps in an old-growth Hyrcanian forest in northern Iran, revealing a significant increase in gap area and fraction over the years as well as the relationship between gap size distribution, regeneration establishment, and gap closure rate. Results also showed a correlation between regeneration density and gap size, with small gaps closing more rapidly than larger ones.
Article
Forestry
Lucie Dietz, Jean-Claude Gegout, Jean-Luc Dupouey, Eric Lacombe, Lisa Laurent, Catherine Collet
Summary: The study investigates the natural regeneration of oak, European beech, and hornbeam in French forests impacted by windstorms in 1999. It shows that beech and hornbeam saplings are more abundant than oak saplings, indicating strong competitive abilities of the former two species. This competitive advantage can potentially lead to the disappearance of oak from large areas in lowland Europe if proper silvicultural operations are not carried out to promote oak dominance.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Forestry
Clinton P. Patterson, Zachary J. Hackworth, John M. Lhotka, Jeffrey W. Stringer
Summary: The study assessed short-term light and regeneration dynamics following silvicultural gap creation in oak-dominated stands of the Northern Cumberland Plateau in the USA. Results showed that oak growth was fastest within the gap, with growth decreasing towards the gap edge and forest matrix boundary.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Forestry
Daniel Scherrer, Fabien Hiltebrand, Jurgen Dengler, Thomas Wohlgemuth
Summary: This study compared Tree Regeneration (TR) in representative plots of the Swiss National Forest Inventory with an opportunistic "gap sampling" strategy, revealing higher TR densities and species richness in the gap sampling. The gap sampling provided more consistent results and showed both general and species-specific patterns in TR composition. This suggests that an opportunistic gap-based monitoring of TR may be more effective in identifying the best forest management strategies in forests adapting to environmental change.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Environmental Sciences
Lenka Pavlu, Erich M. Poetsch, Vilem V. Pavlu, Jan Titera, Michal Hejcman, Jan Gaisler, Alan Hopkins
Summary: Fertilizer application is an effective technique for increasing forage production in agricultural grasslands. Long-term experiments show that different fertilization methods can impact soil pH, nutrient concentrations, and plant species composition, but not species richness. The Admont Grassland Experiment results demonstrate that nutrient combinations containing phosphorus significantly increase dry matter biomass yield and alter species composition without affecting species richness.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Jurij Diaci, Tomaz Adamic, Gal Fidej, Dusan Rozenbergar
Summary: In the last century, synchronous beech expansion has been observed in many mixed mountain forests in southeastern Europe. The Pecka old-growth forest in Slovenia has undergone structural changes, with a decrease in silver fir density and an increase in beech dominance. These changes are likely due to disturbances such as air pollution, windthrows, overbrowsing, and climate change. The forest is expected to transition into a beech-dominated state in a few decades. Immediate reduction of ungulate populations is essential to facilitate this transition.
FRONTIERS IN FORESTS AND GLOBAL CHANGE
(2022)
Article
Forestry
Silvio Bagnato, Pasquale A. Marziliano, Maria Sidari, Carmelo Mallamaci, Federica Marra, Adele Muscolo
Summary: The study showed that gap size and cardinal directions have significant effects on soil characteristics, tree regeneration, and growth. The new microclimatic conditions due to gap opening positively influenced tree growth, especially in medium-sized gaps, creating optimal conditions for European beech natural regeneration.
Article
Forestry
Pejman Parhizkar, Khosro Sagheb-Talebi, Eric K. Zenner, Majid Hassani, Mohammad Hosein Sadeghzadeh Hallaj
Summary: This study compared gap characteristics and gapmakers between a managed and an unmanaged old-growth Oriental beech compartment in northern Iran. The managed compartment had more gaps but lower gap fraction, with larger trees being more commonly cut as gapmakers, while the unmanaged compartment had larger trees more commonly snapped and left as snags. These differences suggest that even a single-tree selection harvest can lead to short-term divergence in stand structure, with implications for forest management strategies.
Article
Chemistry, Physical
Yinan Chen, Silvia G. Motti, Robert D. J. Oliver, Adam D. Wright, Henry J. Snaith, Michael B. Johnston, Laura M. Herz, Marina R. Filip
Summary: This study investigates the effect of halogen mixing on the optoelectronic properties of lead-halide perovskites using both theoretical and experimental methods. It is found that iodide-bromide mixed-halide perovskites can be modeled as homovalent alloys, and local structural distortions do not significantly affect their properties. This research provides a general theoretical-experimental framework for future investigations of novel chemically mixed systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Agronomy
Alireza Annolikondori, Kambiz Abrari Vajari, Mohammad Feizian
Summary: This study investigated the changes in soil organic carbon (SOC), total nitrogen (N) and phosphorus (P) stocks under different gap sizes in the Hechuan oriental beech forest. The results showed that gap size had a significant impact on the stocks of soil carbon, nitrogen and phosphorus, with higher values observed in larger gaps. There was no significant difference in soil carbon, nitrogen and phosphorus stocks between gaps and adjacent closed stands. In gaps, the stocks of SOC and P were positively related to soil microbial carbon and microbial phosphorus, respectively.
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2022)
Article
Forestry
Paula Jylha, Juha Laitila, Ville Hallikainen, Pasi Aatsinki, Mikael Kukkonen, Anu Hilli, Esa Huhta, Sauli Valkonen, Lauri Karvonen, Pasi Rautio
Summary: The present study investigated the impact of different harvesting methods, including continuous cover forestry (CCF) and rotation forest management (RFM), on the proportion and number of undamaged seedlings in Scots-pine-dominated stands in Northern Finland. It was found that harvesting machinery traffic and soil scarification were the main causative factors for seedling damage. Increase in slash coverage also significantly increased seedling damage. The selection cutting areas showed satisfactory regeneration potential with an average of around 1500 undamaged seedlings per hectare.
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Forestry
Lado Kutnar, Janez Kermavnar, Marko S. S. Sabovljevic
Summary: Bryophytes in Slovenian forests respond to both natural and anthropogenic factors, such as tree species composition and geological conditions. Different forest types with varying tree and bedrock compositions have different bryophyte species composition and richness. Bedrock has a significant influence on bryophyte composition and diversity.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2023)
Article
Engineering, Marine
Dong Min Shin, Jaeho Chung
Summary: Theoretical and experimental models were presented for investigating the vertical motion amplitude of a cylinder near the free surface in water by a two-dimensional linear wave. The introduction of the Gap ratio allowed for consideration of the free surface effect, with smaller ratios resulting in greater impact. Experimental results confirmed the theoretical predictions, showing severe fluctuations in hydrodynamic coefficients at smaller Gap ratios.
SHIPS AND OFFSHORE STRUCTURES
(2022)
Editorial Material
Forestry
Douglass F. Jacobs, Juan A. Oliet, James Aronson, Andreas Bolte, James M. Bullock, Pablo J. Donoso, Simon M. Landhaeusser, Palle Madsen, Shaolin Peng, Jose M. Rey-Benayas, John C. Weber
Article
Agricultural Engineering
Ulrik Brauner Nielsen, Palle Madsen, Jon Kehlet Hansen, Thomas Nord-Larsen, Anders Taero Nielsen
BIOMASS & BIOENERGY
(2014)
Article
Forestry
Emile S. Gardiner, Magnus Lof, Joseph J. O'Brien, John A. Stanturf, Palle Madsen
FOREST ECOLOGY AND MANAGEMENT
(2009)
Article
Forestry
Sven Wagner, Catherine Collet, Palle Madsen, Tohru Nakashizuka, Ralph D. Nyland, Khosro Sagheb-Talebi
FOREST ECOLOGY AND MANAGEMENT
(2010)
Article
Forestry
Maria Birkedal, Anders Fischer, Matts Karlsson, Magnus Lof, Palle Madsen
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2009)
Article
Forestry
Andreas Bolte, Christian Ammer, Magnus Lof, Palle Madsen, Gert-Jan Nabuurs, Peter Schall, Peter Spathelf, Joachim Rock
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2009)
Article
Forestry
Sven Wagner, Palle Madsen, Christian Ammer
TREES-STRUCTURE AND FUNCTION
(2009)
Article
Multidisciplinary Sciences
Susan C. Cook-Patton, Sara M. Leavitt, David Gibbs, Nancy L. Harris, Kristine Lister, Kristina J. Anderson-Teixeira, Russell D. Briggs, Robin L. Chazdon, Thomas W. Crowther, Peter W. Ellis, Heather P. Griscom, Valentine Herrmann, Karen D. Holl, Richard A. Houghton, Cecilia Larrosa, Guy Lomax, Richard Lucas, Palle Madsen, Yadvinder Malhi, Alain Paquette, John D. Parker, Keryn Paul, Devin Routh, Stephen Roxburgh, Sassan Saatchi, Johan van den Hoogen, Wayne S. Walker, Charlotte E. Wheeler, Stephen A. Wood, Liang Xu, Bronson W. Griscom
Article
Water Resources
Ying Ouyang, John A. Stanturf, Marcus D. Williams, Evgeniy Botmann, Palle Madsen
Summary: Estimation of hydrological processes is critical for various purposes such as water resource management, water supply planning, ecological protection, and climate change impact assessment. In Central Asia, the disturbance of mountain forests has significantly affected hydrological processes, leading to accelerated soil erosion, mudflow, landslides, and flooding in the region. Using the SWAT model and remote sensing data, this study quantified the hydrological processes in the Aktash River watershed of Uzbekistan, Central Asia, providing valuable information for water resource management in similar mountainous regions.