Article
Agronomy
Peng Li, Huijie Li, Bingcheng Si, Tao Zhou, Chunhua Zhang, Min Li
Summary: This study mapped the distribution of forest age on the Chinese Loess Plateau using the LandTrendr algorithm. The results show that the LT algorithm is a convenient, efficient, and reliable method for identifying forest age. The findings have important implications for assessing and quantifying biomass and carbon sequestration in afforestation efforts on the Chinese Loess Plateau.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Ruonan Chen, Liangyun Liu, Zhunqiao Liu, Xinjie Liu, Jongmin Kim, Hyun Seok Kim, Hojin Lee, Genghong Wu, Chenhui Guo, Lianhong Gu
Summary: Solar-induced chlorophyll fluorescence (SIF) has the potential to estimate gross primary production (GPP), but the quantitative relationship between them is not constant. In this study, a mechanistic model for SIF-based GPP estimation in evergreen needle forests (ENF) was developed, considering the seasonal variation in a key parameter of the model. The GPP estimates from this model were more accurate compared to other benchmark models, especially in extreme conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Forestry
Francois Hebert, Isabelle Delisle, Marc Tremblay, Pascal Tremblay, Jean- Francois Boucher, Yan Boucher, Daniel Lord
Summary: Regeneration failures in the closed-crown boreal forest, resulting in the creation of open lichen woodlands, can be restored through clear-cutting, scarification, and natural seeding. Clear-cutting combined with scarification promotes seedling establishment, and scarification creates suitable microsites for germination. Seedling growth in lichen woodlands is higher when logging and scarification are combined, but lower compared to feather moss stands. Afforestation through natural seeding following scarification could be a cost-effective option for restoring lichen woodlands.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Bronwyn Lira Dyson, Rhea Herpel, Peter Karasch, Jorg Mueller, Dominik Thom, Claus Baessler
Summary: The study aimed to assess the effects of different forest management strategies, dead wood types, and microclimates on Fomes fomentarius. The results showed that the occupancy of Fomes fomentarius was lower in control stands, while the percent cover occupied on snags under a closed canopy was higher. Increasing the number of snags and maintaining dense forest canopies could enhance the presence of Fomes fomentarius as well as provide important microhabitats for various arthropods.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Jean-Baptiste Ndamiyehe Ncutirakiza, Sylvie Gourlet-Fleury, Philippe Lejeune, Xavier Bry, Catherine Trottier, Frederic Mortier, Adeline Fayolle, Francois Muhashy Habiyaremye, Leopold Ndjele Mianda-Bungi, Gauthier Ligot
Summary: This study examines the influence of canopy structure on tropical tree growth using data collected through unmanned aerial vehicles (UAVs) and field measurements. The results show that combining UAV and field data can improve the prediction of tree diameter increment. Diameter at breast height and crown area are complementary predictors, and crown-based competition indices significantly enhance prediction models. The calibrated model at one site can accurately predict growth at another site.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Agronomy
Sasha D. Hafner, Jesper N. Kamp, Johanna Pedersen
Summary: This study compared micrometeorological and wind tunnel measurements using a semi-empirical model to understand wind tunnel measurement error. The results showed differences in emission estimates between the two methods, but the ALFAM2 model was able to reproduce emission dynamics for both methods when considering differences in mass transfer. The study provides a template for integrating and comparing measurements from different methods, suggesting the use of wind tunnel measurements for model evaluation and parameter estimation.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Review
Agronomy
Yean-Uk Kim, Heidi Webber, Samuel G. K. Adiku, Rogerio de S. Noia Junior, Jean-Charles Deswarte, Senthold Asseng, Frank Ewert
Summary: As climate change is expected to increase the intensity and frequency of extreme weather events, it is crucial to assess their impact on cropping systems and explore adaptation options. Process-based crop models (PBCMs) have improved in simulating the impacts of major extreme weather events, but still struggle to reproduce low crop yields under wet conditions. This article provides an overview of the yield-loss mechanisms of excessive rainfall in cereals and the associated modelling approaches, aiming to guide improvements in PBCMs.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Xinhao Li, Tianshan Zha, Andrew Black, Xin Jia, Rachhpal S. Jassal, Peng Liu, Yun Tian, Chuan Jin, Ruizhi Yang, Feng Zhang, Haiqun Yu, Jing Xie
Summary: With the rapid increase of urbanization, evapotranspiration (ET) in urban forests has become increasingly important in urban hydrology and climate. However, there is still a large uncertainty regarding the factors that regulate ET in urban areas. This study investigates the temporal variations of ET in an urban forest park in Beijing using the eddy-covariance technique. The results show that daily ET is close to zero during winter but reaches 3-6 mm day-1 in summer. Daily ET increases with vapor pressure deficit (VPD) and soil water content (SWC). Monthly ET increases linearly with normalized difference vegetation index and shows a strong correlation with surface conductance (gs), while exhibiting saturated responses to increasing monthly precipitation (PPT). Annual ET ranges from 326 to 566 mm, and soil water replenishment through PPT from the previous year is responsible for the generally higher monthly ET in spring relative to PPT. Biotic factors and PPT seasonality play essential roles in regulating ET at different scales.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Forestry
Abebe Damtew, Emiru Birhane, Christian Messier, Alain Paquette, Bart Muys
Summary: Restoring degraded dryland requires a diverse mixture of trees and shrubs. Shading and species diversity can improve seedling survival and vitality. Shaded conditions led to higher seedling survival, vitality, and chlorophyll content, while increasing species richness improved seedling vitality in non-shaded conditions.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Bianca Wulansari Kassun, A. Maarit I. Kallio, Erik Tr Omborg, Meley Mekonen Rannestad
Summary: Mapping and analyzing forest ecosystem services in dry and mountain forests can provide valuable knowledge for sustainable forest management strategies.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Agronomy
Jiaqi Guo, Xiaohong Liu, Wensen Ge, Liangju Zhao, Wenjie Fan, Xinyu Zhang, Qiangqiang Lu, Xiaoyu Xing, Zihan Zhou
Summary: Vegetation photosynthetic phenology is an important indicator for understanding the impacts of climate change on terrestrial carbon cycle. This study evaluated and compared the abilities of different spectral indices to model photosynthetic phenology, and found that NIRv and PRI are effective proxies for monitoring photosynthetic phenology.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Agronomy
Arango Ruda Elizabeth, M. Altaf Arain
Summary: Temperate deciduous forests have significant impacts on regional and global water cycles. This study examined the effects of climate change and extreme weather events on the water use and evapotranspiration of a temperate deciduous forest in eastern North America. The results showed that photosynthetically active radiation and air temperature were the primary drivers of evapotranspiration, while vapor pressure deficit regulated water use efficiency. The study also found a changing trend in water use efficiency over the years, influenced by extreme weather conditions.
AGRICULTURAL AND FOREST METEOROLOGY
(2024)
Article
Forestry
A. Q. Nyrud, K. M. A. Heltorp, Anders Roos, Francisco X. Aguilar, Katja Lahtinen, Noora Viholainen, Sami Berghall, Anne Toppinen, B. J. Thorsen, Matleena Kniivila, Antti Haapala, Elias Hurmekoski, T. Hujala, H. F. Hoen
Summary: This study investigated public attitudes towards multi-storey wood buildings in seven European countries and found that the level of knowledge about wood buildings was lower in countries where brick, stone, and concrete were commonly used in construction, such as the United Kingdom, Germany, and Denmark. Finland and Sweden had the most positive attitudes towards wood buildings. The study also identified factors such as fire vulnerability, material solidity, indoor environment, and moisture vulnerability that influenced people's perception of wood buildings as a nice place to live.
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2024)
Article
Forestry
J. Brian Stogner, Daniel B. Hall, Mengyun Yu, Joseph J. Hendricks
Summary: This study assessed the decomposition of leaf litter in legume and non-legume species and found no significant differences in mass loss rates and decay rates between legumes and non-legumes. The results suggest that N, P, and S are co-regulators of litter decay, and pine litter is an important sink for these limiting macronutrients.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Seth W. Bigelow, J. Kevin Hiers, Scott Pokswinski, Douglas P. Aubrey, E. Louise Loudermilk, Joseph J. O'Brien
Summary: This study analyzed a 16-year monitoring dataset from Eglin Air Force Base in Florida, USA, to examine the effects of different tree growth forms on the longleaf pine. The results showed that restoration activities were effective in reducing the numbers of other tree species and decreasing the canopy area of non-longleaf conifers. Additionally, the effects of adult longleaf pine on seedlings and ingrowth were found to have threshold values.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Helena M. Henttonen, Pekka Nojd, Harri Makinen
Summary: After a period of increasing trend, the annual volume growth of forests in Finland has recently decreased. Environmental variation, rather than changes in growing stock, is found to be the main factor affecting forest growth. Different tree species show similar growth patterns in different regions, and recent years have not been favorable for Scots pine.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Andrew D. Arko, Jeffery B. Cannon, Austin Himes, Adam Polinko
Summary: Modern forestry research highlights the importance of incorporating natural disturbance regimes into management practices. This study examines the characteristics of canopy gaps formed by Hurricane Michael in a longleaf pine woodland, and finds variations in gap characteristics and nuanced differences in their spatial distribution among different landscape types.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Yuan Feng, Yong Chai, Yangping Qin, Guixiang Li, Liping He, Zhenghai Zhang, Li Wu, Guangtao Meng
Summary: Tree height and diameter at breast height (DBH) are important survey factors in forest inventory. Measuring tree height is time-consuming, labor-intensive, and costly, especially in natural mixed forests. This study developed a nonlinear mixed effects height-diameter (H-D) model for a mid-montane humid evergreen broad-leaved forest in southwest China. The model accounted for 75% of the variation in tree height and showed no overfitting. Dominant height (Hd) and Margalef's index of DBH (DMg) were the most influential variables in the model. The study highlights the feasibility of using plant functional traits to categorize natural mixed forests and the importance of tree size inequality on tree height variation.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Ernst van der Maaten, Juliane Stolz, Eric Andreas Thurm, Jens Schroeder, Andreas Henkel, Ludger Leinemann, Ingolf Profft, Wolfgang Voth, Marieke van der Maaten-Theunissen
Summary: Global warming threatens forest ecosystems worldwide, and Central Europe has already seen vitality losses and tree mortality, particularly after extreme droughts. In German beech stands, the impact of drought is evident in decreased crown condition and long-term growth decline, highlighting the need to consider other indicators of tree vitality besides crown condition.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Charalambos Neophytou, Devrim Semizer-Cuming, Hans-Gerhard Michiels, Antoine Kremer, Simon Jansen, Barbara Fussi
Summary: This study investigates the autochthony and genetic structure of Central European white oaks using chloroplast and nuclear microsatellite markers. The results show that the autochthony of oaks was preserved throughout historical times and still reflects the post-glacial recolonization in both relict and old managed stands. Significant admixture of haplotypes was only observed in stands established after the Second World War, indicating human interference. There were marked differences in nuclear genetic variation among species, with Quercus pubescens exhibiting a pronounced genetic structure.
FOREST ECOLOGY AND MANAGEMENT
(2024)
