Article
Forestry
Agnes Foerster, Dietrich Hertel, Rebekka Werner, Christoph Leuschner
Summary: The study compared the fine root biomass, productivity, and morphology of beech and pine forests, finding that beech had significantly higher fine root biomass and productivity compared to pine.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Biodiversity Conservation
Gen Yoshida, Ryuusei Doi, Ryusei Wada, Toko Tanikawa, Yasuhiro Hirano
Summary: The purpose of this study was to investigate the shedding process and morphological traits of root litter from Chamaecyparis obtusa. Researchers developed a method for direct sampling of root litter in the field and collected data for 12 months. They found that the monthly amount of root litter varied significantly, but the morphological traits did not differ significantly among months.
ECOLOGICAL INDICATORS
(2022)
Article
Forestry
Fujing Pan, Qian Qian, Yueming Liang, Kelin Wang, Wei Zhang
Summary: The study revealed that fine root production, biomass, and necromass were significantly influenced by slope position, while the fine root biomass/necromass ratio was significantly affected by vegetation type. The variations in these parameters were mainly explained by fine root nutrients and the interactive effects between fine root and soil nutrients. These findings suggest that fine roots responding to soil and root nutrient changes might serve as an adaptive mechanism to enhance plant nutrient acquisition in nutrient-poor karst ecosystems.
Article
Forestry
Mingyan Hu, Bingzhang Zou, Zhiqun Huang, Sirong Wang, Xiangping Su, Xiaxia Ding, Gaochao Zheng, Han Y. H. Chen
Summary: Fine roots play a critical role in terrestrial carbon and nutrient cycling. This study compared the dynamics of fine root biomass and necromass in Chinese fir plantations, natural secondary forests, and primary forests in subtropical China. The results show that natural secondary forests have higher fine root biomass than Chinese fir plantations, with the necromass to biomass ratio being significantly higher in plantations. The study also found that fine root biomass is positively correlated with stand characteristics such as basal area, diameter at breast height, and shrub cover.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Plant Sciences
Si Ho Han, Ji Young An, Jonathan O. Hernandez, Hee Moon Yang, Eun-Sook Kim, Nam Jin Noh, Jeong Min Seo, Byung Bae Park
Summary: This study evaluated the effects of thinning on litterfall production, soil chemical properties, and fine root biomass in Pinus koraiensis plantations. The results showed that different thinning intensities had diverse effects on these parameters, and future studies can further explore the impact of thinning intensities on species diversity, carbon storage, and understory vegetation.
Article
Agronomy
Florentin C. Jaeger, I. Tanya Handa, Alain Paquette, William C. Parker, Christian Messier
Summary: This study aimed to compare the fine-root acclimation capacity of six temperate tree species under high or low water availability. The results showed contrasting acclimation responses in absorptive fine root biomass and rooting depth among different tree species. Some responses varied with tree species successional status and benefited both early and late successional tree species.
Article
Ecology
Cunguo Wang, Ivano Brunner, Shengwei Zong, Mai-He Li
Summary: Accurate assessment of seasonality and factors affecting fine root biomass and necromass variation is crucial for predicting forest carbon cycling. This study analyzed 67 research studies and found that temperate forests have higher fine root biomass but lower necromass compared to tropical and boreal forests. Gymnosperm forests have smaller fine root biomass and necromass but similar biomass/necromass ratio compared to angiosperm forests. Climate and soil environment are major factors influencing fine root dynamics.
Article
Plant Sciences
Andrea Scartazza, Cristiana Sbrana, Ettore D'Andrea, Giorgio Matteucci, Negar Rezaie, Marco Lauteri
Summary: In a Mediterranean beech forest, mycorrhizal fungi play a vital role in regulating carbon and nitrogen dynamics. Our study reveals the relationship between the biomass of ectomycorrhizal fungi and carbon exchange as well as tree productivity. We also found seasonal variations in the isotopic fractionation of nitrogen between different plant components. These findings contribute to a better understanding of the functionality of Mediterranean forests.
PLANT CELL AND ENVIRONMENT
(2023)
Article
Agronomy
Songyan Zou, Doudou Li, Nan Di, Jinqiang Liu, Lingya Li, Yang Liu, Benye Xi, Mark Coleman
Summary: This study reveals that soil water availability can impact biomass allocation and determine the soil layer with high exploration intensity, but these effects are influenced by stand development. As stands develop, fine root functional divergence may occur gradually.
Article
Forestry
Xiuli Men, Yang Yue, Huiyan Gu, Xiuwei Wang, Xiangwei Chen
Summary: Site class is a quantitative indicator used to evaluate site quality, mainly reflecting climate, soil suitability for tree species, and soil fertility. Little research has been done on the impact of tree competition and site class on stump and coarse root biomass allocation in plantations. This study found that competition mainly affects the allocation of stump and coarse root biomass by changing the biomass of coarse roots.
Article
Forestry
Xiuli Men, Yang Yue, Zhihu Sun, Shaojie Han, Li Pan, Xiangwei Chen, Xiuwei Wang
Summary: The biomass of stumps and coarse roots remaining after tree harvesting is often overlooked by researchers, leading to underestimation of their role in carbon cycling. This study constructed two sets of models to predict the biomass of stumps and coarse roots in larch plantations, and found that the accuracy of stump biomass prediction was higher than that of coarse root biomass prediction using stump disc diameter as the sole predictor variable. Additionally, the predictive capability of the model was affected by the site class of complex stands.
Article
Forestry
Erick O. Osewe, Ioan Dutca
Summary: By investigating European beech biomass datasets, it was found that combining variables in allometric models resulted in biased estimates of mean AGB per hectare for European beech trees. For Q values greater than 2.0, the estimation was overestimated by 6.3%, while for Q values less than 2.0, the estimation was underestimated by 3.9%.
Article
Forestry
Nathan J. J. Sleight, Timothy A. A. Volk, Mark Eisenbies
Summary: In this study, the proportion of biomass allocated to above- and belowground components in short-rotation willow biomass crops was analyzed. The root:shoot ratio was found to be consistent across sites and cultivars. However, higher producing stands had slightly lower ratios. These findings are important for understanding the carbon balance and breeding programs of these systems.
Article
Agronomy
Qiulian Lin, Luzhen Chen, Jialin Zhang, Liangchen Wang, Xinyue Yu, Qiang Guo
Summary: This study aimed to examine the dynamics and functions of fine roots during root zone expansion and belowground carbon accumulation. The results showed that fine root biomass contributed over 60% to belowground roots, with a majority of 69.25% being dead fine roots. Fine root turnover rates ranged from 0.10 to 0.22 per year, with the fastest rate found in the Bruguiera forest. Root zone expansion rates ranged from 0.55 to 1.28 mm yr (-1), and were positively correlated with live fine root biomass in the upper 50 cm layer of sediment.
Article
Ecology
A. T. M. Zinnatul Bassar, Masako Dannoura, Naoki Okada, Md. Kamruzzaman
Summary: This study investigates the fine root dynamics of three plant species and their importance in the carbon dynamics of the ecosystem. The results show that the total fine root production ranges from 4.7 to 7.1 Mg ha-1 y-1, and the mortality ranges from 2.9 to 5.9 Mg ha-1 y-1. Additionally, the study finds significant effects of soil salinity, soil N, and soil pH on fine root production.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)
Article
Forestry
Sadadi Ojoatre, Jos Barlow, Suzanne R. Jacobs, Mariana C. Rufino
Summary: This study evaluates the changes in a forest complex in Kenya and finds that within 20 years of disturbance, there is rapid recovery of aboveground biomass and carbon accumulation, and the species diversity remains high in these previously disturbed fragments.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Astor Torano Caicoya, Peter Biber, Miren del Rio, Ricardo Ruiz-Peinado, Catia Arcangeli, Robert Matthews, Hans Pretzsch
Summary: This study analyzed the effects of site and climate on the self-thinning line in Scots pine forests in Europe. The results showed that species tolerance, temperature, and precipitation influenced the slope of the self-thinning line. In terms of the intercept, latitude and radiation had compensating effects. Time did not show significant trends in the self-thinning line. The study highlights the need to adapt management strategies and models based on self-thinning to different latitudes. Climate change has not yet significantly impacted the self-thinning trajectory, but a continuous rise in temperature and high precipitation may accelerate the self-thinning process and result in increased biomass accumulation.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Haonan Zhang, Jianing Xu, Weiqi Meng, Zhonglin Li, Yanyan Ni, Weijie Li, Hao Chen, Xingshuo Zhang, Huanhuan Yuan, Zhi Wang
Summary: Secondary forests play a crucial role in ecosystem dynamics and biodiversity recovery. This study investigated the mechanisms underlying secondary succession in a restored secondary forest and found that deciduous tree species transition from diversity accumulators to repellents as they progress through different life history stages, while evergreen tree species can act as accumulators or remain neutral. The study also revealed the effects of density dependence on the mortality and regeneration of different tree species, and highlighted the importance of early-arriving tree species in facilitating the establishment and diversity of late-arriving counterparts.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Yierxiati Abulaiti, Zijian Huang, Guojiao Xie, Xiaojuan Zou, Qin Luo, Minhuang Wang, Qiong Yang, Ping Hu, Shixiao Yu
Summary: In this study, the resistance to pest infestation of native and exotic mangrove species was compared based on their traits and spectral reflectance. The results showed that exotic species exhibited higher resistance to pest infestation compared to native species.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Thomas Feiss, Vincent Robin, Delphine Aran, Joseph Levillain, Thierry Paul, Jean-Luc Dupouey
Summary: Fagus sylvatica L. is a competitive tree in European temperate deciduous forests, but often sporadic or absent in present-day stands where Quercus spp. are dominant. Through soil charcoal analysis in the Lorraine Plateau in France, the presence of Fagus and Quercus in mature Quercus stands was confirmed. Radiocarbon dating results indicated that historical forest management caused the replacement of Fagus by Quercus, starting from the Bronze Age.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Paula Halbig, Anne-Sophie Stelzer, Peter Baier, Josef Pennerstorfer, Horst Delb, Axel Schopf
Summary: The incidence of oak processionary moth in Central Europe has been increasing, posing severe threats to oak trees, humans, and animals. To address this issue, researchers have developed an online early warning system that provides phenological forecasts and decision support for the protection of oak trees and human health.
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
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
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
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
Forestry
Michael Premer, Eric Turnblom, Aaron Weiskittel
Summary: Managed forests serve as a natural climate change solution by sequestering carbon and storing it in harvested wood products, while also providing ecosystem services and wildlife habitat. This study focused on the stem sinuosity of juvenile coastal Douglas-fir and found that genetic improvement, silviculture practices, and local growing conditions can impact stem sinuosity. Factors such as tree spacing, vegetation control, and climate variables also affect the severity of stem sinuosity.
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
Di Liu, Chaofan Zhou, Xiao He, Xiangdong Lei, Huiru Zhang, Xianzhao Liu
Summary: Canopy structure plays a significant role in the distribution and growth of saplings. Traditional canopy metrics are inadequate in irregular stands. The innovative framework of canopy triangular units provides a comprehensive understanding of the canopy's three-dimensional attributes. Through this framework, we can analyze the differences in various triangular unit types and the spatial dispersion of saplings.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Amalia Valeria Ibanez Moro, Fabian Borghetti, Leonardo Galetto, Juan M. Cellini, Sandra J. Bravo
Summary: This study evaluated the size and persistence of soil seed banks (SSB) of six native woody species in dry subtropical forests of the western Argentine Chaco region. The results showed that SSB size was influenced by different sites and sampling years, and forest disturbances had varying effects on SSB.
FOREST ECOLOGY AND MANAGEMENT
(2024)
Article
Forestry
Stephanie Landry, Marc-Andre Villard, Gaetan Pelletier, Martin-Hugues St-Laurent
Summary: In many regions of the world, excessive browsing by ungulates has reached unsustainable levels, threatening biodiversity and forest regeneration. Moose, as ecological engineers, have severe impacts on forest structure and composition through overbrowsing. The distribution of forage and cover patches affects moose browsing pressure, and this relationship has been explored in conifer-dominated stands but not in hardwood-dominated landscapes.
FOREST ECOLOGY AND MANAGEMENT
(2024)