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30 pages, 4014 KiB  
Article
Spatial Heterogeneity in Carbon Pools of Young Betula sp. Stands on Former Arable Lands in the South of the Moscow Region
by Gulfina G. Frolova, Pavel V. Frolov, Vladimir N. Shanin and Irina V. Priputina
Plants 2025, 14(15), 2401; https://doi.org/10.3390/plants14152401 - 3 Aug 2025
Viewed by 53
Abstract
This study investigates the spatial heterogeneity of carbon pools in young Betula sp. stands on former arable lands in the southern Moscow region, Russia. The findings could be useful for the current estimates and predictions of the carbon balance in such forest ecosystems. [...] Read more.
This study investigates the spatial heterogeneity of carbon pools in young Betula sp. stands on former arable lands in the southern Moscow region, Russia. The findings could be useful for the current estimates and predictions of the carbon balance in such forest ecosystems. The research focuses on understanding the interactions between plant cover and the environment, i.e., how environmental factors such as stand density, tree diameter and height, light conditions, and soil properties affect ecosystem carbon pools. We also studied how heterogeneity in edaphic conditions affects the formation of plant cover, particularly tree regeneration and the development of ground layer vegetation. Field measurements were conducted on a permanent 50 × 50 m sampling plot divided into 5 × 5 m subplots, in order to capture variability in vegetation and soil characteristics. Key findings reveal significant differences in carbon stocks across subplots with varying stand densities and light conditions. This highlights the role of the spatial heterogeneity of soil properties and vegetation cover in carbon sequestration. The study demonstrates the feasibility of indirect estimation of carbon stocks using stand parameters (density, height, and diameter), with results that closely match direct measurements. The total ecosystem carbon stock was estimated at 80.47 t ha−1, with the soil contribution exceeding that of living biomass and dead organic matter. This research emphasizes the importance of accounting for spatial heterogeneity in carbon assessments of post-agricultural ecosystems, providing a methodological framework for future studies. Full article
(This article belongs to the Section Plant–Soil Interactions)
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10 pages, 181 KiB  
Article
Developing Planetary Humanities
by Whitney Bauman
Religions 2025, 16(6), 681; https://doi.org/10.3390/rel16060681 - 27 May 2025
Viewed by 295
Abstract
If modern Western disciplinary structures, laid forth by Dilthey and others in the 19th century, have helped structure the world in ways that bring about climate change and gross economic inequities (along with many “good” things such as vaccines and some modern comforts), [...] Read more.
If modern Western disciplinary structures, laid forth by Dilthey and others in the 19th century, have helped structure the world in ways that bring about climate change and gross economic inequities (along with many “good” things such as vaccines and some modern comforts), how might we re-structure our thinking and learning in ways that address these violent lacunae? What does it mean to educate in a truly globalized world that is facing climate change, extinction, and growing injustice? The answer to that surely cannot be “more of the same”. Following the work of critical theorists and the ideas of Paulo Freire and bell hooks, among others, this essay argues that education should be about imagining and working toward a more just and ecologically sound version of the planetary future in a way that is attentive to as much input as possible from multiple perspectives (human and non). The goals of such an education are connective, grounding, and encountering “others” rather than reductive, productive, and geared toward technology transfer. What would it mean to undiscipline or open our disciplinary categories in ways that reattune us to the changing, entangled planet of which we are a part? What will it take to develop planetary humanities and technologies? If humans are not exceptions to the rest of the natural world, and if the nonhuman world is not just dead matter to be used toward human ends, then how do we go about re-grounding our epistemologies within the planet, rather than continuously thinking “out of this world”? The first part of this essay offers a critique of the reductive and productive model that turns the world into a “standing reserve” for use by some humans. The second part of the essay outlines some principles for knowledge that are more connective, grounding and enable us to counter the multiple others within the planetary community. Such “planetary” knowledge reminds humans of the humus of our humanity, connects us to other life found through compassion (to suffer with), reminds us of the justice of good company (sharing of bread/resources), and focuses on the playfulness of public, political conversations (the ability to be converted to another’s point of view). In the third part, I suggest some grounded metaphors for planetary thinking: wild and slow thinking, elemental and grounded thinking, and creaturely and mycelium thinking. Full article
(This article belongs to the Special Issue Undisciplining Religion and Science: Science, Religion and Nature)
13 pages, 1913 KiB  
Article
Chemical Management Strategies of Pimelea trichostachya Lindl. Using Pre- and Post-Emergence Herbicides
by Rashid Saleem, Shane Campbell, Mary T. Fletcher, Sundaravelpandian Kalaipandian and Steve W. Adkins
Plants 2024, 13(10), 1342; https://doi.org/10.3390/plants13101342 - 13 May 2024
Viewed by 1349
Abstract
Pimelea trichostachya Lindl. is a native Australian forb responsible for livestock poisoning and reducing the productivity and sustainability of grazing enterprises. This study was conducted as a pot trial under controlled conditions to investigate an effective chemical management strategy for P. trichostachya, [...] Read more.
Pimelea trichostachya Lindl. is a native Australian forb responsible for livestock poisoning and reducing the productivity and sustainability of grazing enterprises. This study was conducted as a pot trial under controlled conditions to investigate an effective chemical management strategy for P. trichostachya, a method that did not leave standing dead plant material, as such material can also be toxic to grazing cattle. Three herbicides, including one pre-emergence (tebuthiuron) and two post-emergence herbicides (2,4-D and metsulfuron-methyl), were tested in pot trials for their efficacy on P. trichostachya. Results showed that tebuthiuron applied as either a granular (10% active ingredient, a.i.) or pelleted (20% a.i.) form efficiently reduced the emergence of P. trichostachya seedlings. Although some seedlings emerged, they perished within 7 days post treatment, leaving no residual plant matter. Testing now needs to be undertaken under field conditions to validate the findings within vegetation communities where potential non-target impacts need to be accounted for as well. The post-emergence application of 2,4-D and metsulfuron-methyl demonstrated that the highest efficacy and reduced application rates were achieved by treating earlier growth stages (i.e., seedlings) of P. trichostachya plants. In addition, the amount of toxic dead plant material was minimized due to the faster degradation of these small plants. These findings offer practical, cost-effective solutions for sustaining grazing lands from P. trichostachya challenges. Full article
(This article belongs to the Special Issue Plant Invasion 2023)
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16 pages, 1922 KiB  
Article
Carbon Sequestration Dynamics in Peri-Urban Forests: Comparing Secondary Succession and Mature Stands under Varied Forest Management Practices
by Cosmin Ion Braga, Stefan Petrea, Gheorghe Raul Radu, Alexandru Bogdan Cucu, Tibor Serban, Alexandru Zaharia and Stefan Leca
Land 2024, 13(4), 492; https://doi.org/10.3390/land13040492 - 10 Apr 2024
Cited by 4 | Viewed by 1948
Abstract
This study examines the impact of silvicultural and land-use management practices on carbon sequestration in peri-urban forest ecosystems, with a particular focus on human-induced carbon dynamics. The study area’s complex profile spans from a compact native forest to varying degrees of fragmentation. This [...] Read more.
This study examines the impact of silvicultural and land-use management practices on carbon sequestration in peri-urban forest ecosystems, with a particular focus on human-induced carbon dynamics. The study area’s complex profile spans from a compact native forest to varying degrees of fragmentation. This included areas undergoing secondary succession forest without silvicultural interventions (No-SI) alongside sites subjected to high-intensity (High-SI) and low-intensity silvicultural interventions (Low-SI). The research assessed carbon stocks and sequestration in different carbon pools (living biomass, dead organic matter and soil) using field data, allometric equations and laboratory analysis. Findings reveal a significant correlation between the intensity of anthropogenic interventions and variations in carbon stocks. The CASMOFOR model facilitated the reconstruction of carbon stock and carbon-stock change dynamics over four decades (1980–2022), showing disparities in carbon storage capabilities linked to the structural characteristics of the sites. The Low-SI site had the highest carbon stock in all carbon pools (378 tonnes C ha−1), which is more than double compared to High-SI (161 tonnes C ha−1) or No-SI sites (134 tonnes C ha−1). However, the secondary succession forest (No-SI) demonstrated the highest annual carbon stock change (4.4 tonnes C ha−1 year−1), two times higher than the Low-SI mature stand (2.2 tonnes C ha−1 year−1), emphasising the resilience of forest ecosystems to recover and sustain carbon sequestration capacities after harvesting if forest land use remains unchanged. The study underscores the significant importance of anthropogenic interventions on carbon dynamics, especially for living tree biomass, which has consequences in enhancing carbon sequestration and contributing to emission reduction targets. Full article
(This article belongs to the Special Issue Adaptive Sustainable Forest Management to Actual Societal Challenges)
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20 pages, 3983 KiB  
Article
Fungal Community Succession of Populus grandidentata (Bigtooth Aspen) during Wood Decomposition
by Buck T. Castillo, Rima B. Franklin, Kevin R. Amses, Márcio F. A. Leite, Eiko E. Kuramae, Christopher M. Gough, Timothy Y. James, Lewis Faller and John Syring
Forests 2023, 14(10), 2086; https://doi.org/10.3390/f14102086 - 18 Oct 2023
Cited by 3 | Viewed by 2204
Abstract
Fungal communities are primary decomposers of detritus, including coarse woody debris (CWD). We investigated the succession of fungal decomposer communities in CWD through different stages of decay in the wide-ranging and early successional tree species Populus grandidentata (bigtooth aspen). We compared shifts in [...] Read more.
Fungal communities are primary decomposers of detritus, including coarse woody debris (CWD). We investigated the succession of fungal decomposer communities in CWD through different stages of decay in the wide-ranging and early successional tree species Populus grandidentata (bigtooth aspen). We compared shifts in fungal communities over time with concurrent changes in substrate chemistry and in bacterial community composition, the latter deriving from an earlier study of the same system. We found that fungal communities were highly dynamic during the stages of CWD decay, rapidly colonizing standing dead trees and gradually changing in composition until the late stages of decomposed wood were integrated into soil organic matter. Fungal communities were most similar to neighboring stages of decay, with fungal diversity, abundance, and enzyme activity positively related to percent nitrogen, irrespective of decay class. In contrast to other studies, we found that species diversity remained unchanged across decay classes. Differences in enzyme profiles across CWD decay stages mirrored changes in carbon recalcitrance, as B-D-xylosidase, peroxidase, and Leucyl aminopeptidase activity increased as decomposition progressed. Finally, fungal and bacterial gene abundances were stable and increased, respectively, with the extent of CWD decay, suggesting that fungal-driven decomposition was associated with shifting community composition and associated enzyme functions rather than fungal quantities. Full article
(This article belongs to the Special Issue Fungal Dynamics and Diversity in Forests)
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14 pages, 7612 KiB  
Article
Factors Controlling Dead Wood Decomposition in an Old-Growth Temperate Forest in Central Europe
by Mayuko Jomura, Riki Yoshida, Lenka Michalčíková, Vojtěch Tláskal and Petr Baldrian
J. Fungi 2022, 8(7), 673; https://doi.org/10.3390/jof8070673 - 27 Jun 2022
Cited by 17 | Viewed by 3800
Abstract
Dead wood represents an important pool of carbon and nitrogen in forest ecosystems. This source of soil organic matter has diverse ecosystem functions that include, among others, carbon and nitrogen cycling. However, information is limited on how deadwood properties such as chemical composition, [...] Read more.
Dead wood represents an important pool of carbon and nitrogen in forest ecosystems. This source of soil organic matter has diverse ecosystem functions that include, among others, carbon and nitrogen cycling. However, information is limited on how deadwood properties such as chemical composition, decomposer abundance, community composition, and age correlate and affect decomposition rate. Here, we targeted coarse dead wood of beech, spruce, and fir, namely snags and tree trunks (logs) in an old-growth temperate forest in central Europe; measured their decomposition rate as CO2 production in situ; and analyzed their relationships with other measured variables. Respiration rate of dead wood showed strong positive correlation with acid phosphatase activity and negative correlation with lignin content. Fungal biomass (ergosterol content) and moisture content were additional predictors. Our results indicate that dead wood traits, including tree species, age, and position (downed/standing), affected dead wood chemical properties, microbial biomass, moisture condition, and enzyme activity through changes in fungal communities and ultimately influenced the decomposition rate of dead wood. Full article
(This article belongs to the Special Issue Eco-Physiology of Wood Decay Fungi: Basics and Applications)
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24 pages, 3622 KiB  
Article
Assessment of Forest Wood and Carbon Stock at the Stand Level: First Results of a Modeling Approach for an Italian Case Study Area of the Central Alps
by Luca Nonini and Marco Fiala
Sustainability 2022, 14(7), 3898; https://doi.org/10.3390/su14073898 - 25 Mar 2022
Cited by 3 | Viewed by 2258
Abstract
Models for carbon (C) stock assessment are widely applied in forest science, and mainly differ according to the scale of application, the required data, and the objectives for their implementation. This work presents the methodology implemented into the second version of an empirical [...] Read more.
Models for carbon (C) stock assessment are widely applied in forest science, and mainly differ according to the scale of application, the required data, and the objectives for their implementation. This work presents the methodology implemented into the second version of an empirical model, WOody biomass and Carbon ASsessment (WOCAS v2), that uses the data of forest management plans (FMP) to calculate the mass of wood (t∙year−1 of dry matter, DM) and C (t∙year−1 C) at the stand level and from the year in which the FMPs came into force until a predefined reference year, for an Italian Case Study Area of Central Alps. The mass of wood and C are computed for (i) aboveground wood biomass (AWB), (ii) belowground wood biomass (BWB), and (iii) dead organic matter (DOM; i.e., dead wood and litter) according to the 2006 IPCC Guidelines. WOCAS v2 was tested for the first time for 2019 public forest stands (3.67 × 104 ha) of Valle Camonica for the period 1984–2018. Results showed that, in 2018 and at the landscape level, the total living wood biomass (TLB; AWB + BWB) reached 5.35∙106 t DM. TLB yield (t·ha−1·year−1 DM) ranged from 44.72 ± 44.42 t·ha−1·year−1 DM (1984) to 145.49 ± 70.76 t·ha−1·year−1 DM (2018). In the same year, DOM amounted to 6.12∙105 t DM, ranging from 8.28 ± 7.79 t·ha−1·year−1 DM (1989) to 17.11 ± 12.03 t·ha−1·year−1 DM (2015). The total weighted C yield, computed as the sum of C yield in AWB, BWB, and DOM of each stand, ranged from 26.63 ± 26.80 t∙ha−1∙year−1 C (1984) to 80.28 ± 41.32 t∙ha−1∙year−1 C (2018). The results demonstrated that FMPs data can be useful in estimating wood and C mass at the stand level and their variation over space and time for AWB as well as for BWB and DOM, which are not considered in the FMPs. This can represent a starting point for defining sustainable forest management policies and practices to improve forest vitality and conservation in compatibility with ecosystem services provision. Moreover, as the model is based on a standardized methodology it can be applied in any other forest area where the same input data are made available; this may constitute the basis for further applications on a broader scale. Full article
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17 pages, 8928 KiB  
Article
A Semi-Automated Method to Extract Green and Non-Photosynthetic Vegetation Cover from RGB Images in Mixed Grasslands
by Dandan Xu, Yihan Pu and Xulin Guo
Sensors 2020, 20(23), 6870; https://doi.org/10.3390/s20236870 - 1 Dec 2020
Cited by 8 | Viewed by 3042
Abstract
Green (GV) and non-photosynthetic vegetation (NPV) cover are both important biophysical parameters for grassland research. The current methodology for cover estimation, including subjective visual estimation and digital image analysis, requires human intervention, lacks automation, batch processing capabilities and extraction accuracy. Therefore, this study [...] Read more.
Green (GV) and non-photosynthetic vegetation (NPV) cover are both important biophysical parameters for grassland research. The current methodology for cover estimation, including subjective visual estimation and digital image analysis, requires human intervention, lacks automation, batch processing capabilities and extraction accuracy. Therefore, this study proposed to develop a method to quantify both GV and standing dead matter (SDM) fraction cover from field-taken digital RGB images with semi-automated batch processing capabilities (i.e., written as a python script) for mixed grasslands with more complex background information including litter, moss, lichen, rocks and soil. The results show that the GV cover extracted by the method developed in this study is superior to that by subjective visual estimation based on the linear relation with normalized vegetation index (NDVI) calculated from field measured hyper-spectra (R2 = 0.846, p < 0.001 for GV cover estimated from RGB images; R2 = 0.711, p < 0.001 for subjective visual estimated GV cover). The results also show that the developed method has great potential to estimate SDM cover with limited effects of light colored understory components including litter, soil crust and bare soil. In addition, the results of this study indicate that subjective visual estimation tends to estimate higher cover for both GV and SDM compared to that estimated from RGB images. Full article
(This article belongs to the Special Issue Remote Sensing Application for Monitoring Grassland)
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17 pages, 2042 KiB  
Article
What Governs Tree Harvesting in Community Forestry—Regulatory Instruments or Forest Bureaucrats’ Discretion?
by Sony Baral and Harald Vacik
Forests 2018, 9(10), 649; https://doi.org/10.3390/f9100649 - 18 Oct 2018
Cited by 15 | Viewed by 5029
Abstract
Community forestry is required to follow a forest management plan (FMP) to ensure sustainable tree harvesting. However, the role of FMPs or forest bureaucrats’ discretion in guiding harvesting decisions and the resultant effects has not been explored. This paper investigates tree harvesting practices [...] Read more.
Community forestry is required to follow a forest management plan (FMP) to ensure sustainable tree harvesting. However, the role of FMPs or forest bureaucrats’ discretion in guiding harvesting decisions and the resultant effects has not been explored. This paper investigates tree harvesting practices in community forests (CF) and its effects on forest sustainability, using the forest inventory panel dataset for three consecutive periods (2010, 2013 and 2016), together with qualitative information obtained by key informant interviews and a review of records of the community forest users’ group. Harvesting decisions in the CF are largely guided by the decrees or schematic instructions of forest bureaucrats, where the role of the FMP remains highly contested. Whether harvesting decisions should be guided by the prescriptions of the FMP or should be regulated through decrees is a matter of discourse. Forest bureaucrats are arbitrarily reducing harvesting quantities and rarely referring to the prescriptions of the FMP. Consequently, users are compelled to harvest less than half the quantity of trees prescribed in the FMP. Furthermore, they are only allowed to harvest poor quality and dead trees. As a result, the number of good quality trees has increased, while the number of seedlings and saplings has decreased significantly. Although harvesting of saplings and seedlings is a common practice, it is against the provisions of the FMP. Though the current bureaucratic discretion has shown quick short-term effects on the forest stand conditions, the long-term impacts should not be undermined. Our findings will be useful to implementors and policy makers in Nepal and other developing countries with similar circumstances for deciding the tree harvesting. We argue for a rational approach in designing harvesting prescriptions and complying with them rather than regulating harvesting practices through guidelines, circulars and bureaucratic discretion. Full article
(This article belongs to the Section Forest Economics, Policy, and Social Science)
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22 pages, 289 KiB  
Article
Allometric Equations for Estimating Carbon Stocks in Natural Forest in New Zealand
by Peter N. Beets, Mark O. Kimberley, Graeme R. Oliver, Stephen H. Pearce, J. Doug Graham and Andrea Brandon
Forests 2012, 3(3), 818-839; https://doi.org/10.3390/f3030818 - 10 Sep 2012
Cited by 68 | Viewed by 15348
Abstract
Species-specific and mixed-species volume and above ground biomass allometric equations were developed for 15 indigenous tree species and four tree fern species in New Zealand. A mixed-species tree equation based on breast height diameter (DBH) and tree height (H) provided acceptable estimates of [...] Read more.
Species-specific and mixed-species volume and above ground biomass allometric equations were developed for 15 indigenous tree species and four tree fern species in New Zealand. A mixed-species tree equation based on breast height diameter (DBH) and tree height (H) provided acceptable estimates of stem plus branch (>10 cm in diameter over bark) volume, which was multiplied by live tree density to estimate dry matter. For dead standing spars, DBH, estimated original height, actual spar height and compatible volume/taper functions provided estimates of dead stem volume, which was multiplied by live tree density and a density modifier based on log decay class from field assessments to estimate dry matter. Live tree density was estimated using ratio estimators. Ratio estimators were based on biomass sample trees, and utilized density data from outerwood basic density surveys which were available for 35 tree species sampled throughout New Zealand. Foliage and branch ( < 10 cm in diameter over bark) dry matter were estimated directly from tree DBH. Tree fern above ground dry matter was estimated using allometric equations based on DBH and H. Due to insufficient data, below ground carbon for trees was estimated using the default IPCC root/shoot ratio of 25%, but for tree ferns it was estimated using measured root/shoot ratios which averaged 20%. Full article
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