Article
Forestry
Cezar Scriba, Aurel Lunguleasa, Cosmin Spirchez, Valentina Ciobanu
Summary: The paper examines the forestry aspects of using Inger and Tordis willow clones to obtain woody biomass and remediate degraded soils. Results showed that degraded soils negatively affected survival rates and biomass quantities, but enriched nutrients in the soil. The study concludes that using willow clones is a viable solution for obtaining energetic biomass and improving the productivity of degraded soils.
Article
Agriculture, Multidisciplinary
S. Otto, R. Masin, N. Nikolic, A. Berti, G. Zanin
Summary: Crop rotation length and fertilization have little effect on weed community evolution, with 98% of weed species being indifferent to these factors. The dominance of certain weeds is a result of inadequate management, particularly for late emergence and post-harvest weeds.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Agronomy
Yunlong Wang, Liqiang Zhang, Fangang Meng, Zixi Lou, Xiaoya An, Xinbo Jiang, Hongyan Zhao, Wei Zhang
Summary: Rotation and fertilization are important methods for improving crop yield. This study focused on the effects of long-term maize-soybean rotation and fertilization on soil microbial communities. The results showed that rotation with different fertilization treatments increased soybean yield by 12.11% and 21.42% compared to continuous cropping. Rotation combined with fertilization also improved soil pH, SOM, and nutrient status. Moreover, rotation increased the abundance of beneficial bacteria and stability of the bacterial community structure. Functional gene prediction indicated increased soil ammonification and nitrification under rotation. Furthermore, rotation increased the abundance of beneficial fungi and reduced the abundance of pathogens, while fertilization had the opposite effect.
Article
Agriculture, Multidisciplinary
Beibei Liu, Chaoxian Wei, Dengxiu Wei, Miao Chen, Wei Li, Pan Pan, Bigui Lin, Lin Wu, Qinfen Li, Zhenli He
Summary: The overuse of chemical fertilizers and intensive cropping systems often leads to soil quality degradation and affects cadmium availability to crops. Therefore, studying the impact of agronomic managements on soil Cd adsorption is important for sustainable agriculture. A three-year field experiment was conducted to investigate the effects of different agronomic managements on soil Cd adsorption. The results showed that corn-pepper rotation with sheep manure significantly increased Cd adsorption in the soil.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Plant Sciences
Jia Junchao, Li Chaodong, Chang Zhangyue
Summary: The effects of soil texture and water potential on root:shoot ratio were investigated in a pot experiment. The results showed that soil texture significantly influenced the root:shoot ratio in ryegrass and alfalfa, while soil water potential had no effect. These findings are important for future estimations of ecosystem carbon stocks.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Geosciences, Multidisciplinary
Cecilia Crespo, Nicolas Wyngaard, Hernan Sainz Rozas, Guillermo Studdert, Mirian Barraco, Vicente Gudelj, Pedro Barbagelata, Pablo Barbieri
Summary: The study assessed the impact of intensification practices on soil organic carbon content and stratification ratio. The results showed that intensification of crop sequences can increase soil organic carbon content and slow down the rate of soil organic carbon loss.
Article
Geosciences, Multidisciplinary
Renkuan Liao, Yuguo Han, Zifan Guo
Summary: Soil aggregates have a significant impact on soil nitrogen mineralization, with intermediate aggregates (1-0.5 mm and 0.5-0.25 mm) showing the highest mineral N concentration and mass. These findings can help in developing guidelines for fertilizer management based on soil aggregate sizes and N mineralization abilities.
Article
Agriculture, Multidisciplinary
A. G. El-Naggar, C. B. Hedley, P. Roudier, D. Horne, B. E. Clothier
Summary: This study developed a quasi-2-dimensional inversion model based on electromagnetic induction surveys to derive true electrical conductivity and volumetric water content of the soil profile, establishing relationships between the two properties. The method was applied for irrigation scheduling and monitoring spatio-temporal variations of soil moisture, showing potential for predicting 2D depth profiles of soil characteristics and supporting soil management.
PRECISION AGRICULTURE
(2021)
Article
Agronomy
Haoyu Li, Yuanhong Zhang, Yuanguang Sun, Pengzhao Liu, Qi Zhang, Xiaoli Wang, Rui Wang, Jun Li
Summary: Soil nutrient deficiency is a major constraint to sustainable agriculture development on the Loess Plateau. Optimized agricultural management practices, such as improved fertilization, conservation tillage, and crop rotation, can enhance crop yield, economic profit, and soil fertility. A long-term study demonstrated that optimized agricultural management strategies significantly increased grain yield, economic profit, and improved soil conditions.
EUROPEAN JOURNAL OF AGRONOMY
(2023)
Article
Geosciences, Multidisciplinary
Xin Zhang, Meng-Jia Li, Chao Yang, Lin-Qing Zhan, Wei Wu, Hong-Bin Liu
Summary: This study investigates the effects of parent material, cropping system, topography, and climate on soil organic carbon (SOC) and total nitrogen (TN) contents and their corresponding stratification ratio (SR). The results show that parent material and cropping system are the main factors influencing SR, while topography and climate have weaker effects. The study highlights the importance of using SR as an indicator for optimizing cropping patterns and enhancing agricultural productivity.
Article
Agronomy
Peng Xu, Wei Zhou, Mengdie Jiang, Imran Khan, Tongtao Wu, Minghua Zhou, Bo Zhu, Ronggui Hu
Summary: The study found that nitrogen fertilization did not have a significant impact on CH4 emissions, while maintaining appropriate soil hydrothermal conditions and available C and N substrates can help mitigate flooded rice-based CH4 emissions.
Article
Agronomy
Daniel W. Sweeney, Dorivar A. Ruiz Diaz, Bruno C. Pedreira, John L. Havlin
Summary: In the claypan soils of the eastern Great Plains, no-till crops have lower yields compared to crops grown with tillage, particularly cereals. The impact of tillage system and N fertilizer placement on corn, wheat, and double-crop soybean yields was assessed over a 14-year study. Results showed that corn yield was significantly affected by tillage and N placement, with no-till consistently resulting in lower yields. Nitrogen fertilization increased corn yield, with subsurface band applications showing a slight advantage. However, tillage had minimal effects on wheat and double-crop soybean yield, and only led to slight increases in soil P and K levels. Overall, tillage and N placement treatments had a greater impact on corn yield and soil properties in this rotation.
Article
Environmental Sciences
Dongwang Wang, Zhenhua Wang, Jinzhu Zhang, Bo Zhou, Tingbo Lv, Wenhao Li
Summary: The study investigated the effects of different soil textures on soil leaching and cotton growth under combined irrigation and drainage, finding that clay and loam had better water retention than sandy soil. The combined irrigation and drainage treatment resulted in decreased salt content and pH values in different soil textures, improving soil permeability and increasing cotton yield and water use efficiency, especially in loam soil.
Article
Horticulture
Roberto Ruggeri, Massimo Tolomio, Massimo Muganu, Paolo Loreti, Giuseppe Virga, Nicolo Iacuzzi, Francesco Rossini
Summary: In response to market demand and climate change, the cultivation of hops is expanding to Southern Europe. However, there is limited understanding of the pedoclimatic needs and agronomic performance of hops grown in the Mediterranean environment. This study established an organic hop yard in central Italy to investigate the yield potential and relationship between cone and shoot yields in the first two years of growth.
SCIENTIA HORTICULTURAE
(2023)
Article
Plant Sciences
Fanchao Meng, Kelin Hu, Puyu Feng, Guozhong Feng, Qiang Gao
Summary: This study conducted a two-year experiment on maize cultivation in different textural soils and found that soil texture and nitrogen fertilizer application significantly affected maize yield, water consumption, and nitrogen fates. The integrated index considering agronomic, economic, and environmental impacts was used to determine the best management practices for the two textural soils.
Article
Forestry
Steen Magnussen, Thomas Nord-Larsen
Summary: This study addresses the issue of spatial heterogeneity and prediction accuracy improvement in design-based model assisted inference from forest inventory data. Through examples, it demonstrates how to obtain an assisting model, test for spatial stationarity in regression coefficients, and identify spatial model strata for post-stratification.
SCANDINAVIAN JOURNAL OF FOREST RESEARCH
(2021)
Article
Forestry
Johannes Breidenbach, Janis Ivanovs, Annika Kangas, Thomas Nord-Larsen, Mats Nilsson, Rasmus Astrup
Summary: This study assembled design-based estimators using National Forest Inventory data to provide estimates relevant for greenhouse gas inventories. By leveraging remote sensing auxiliary data and field data, they improved estimators for living-biomass carbon stock loss. The combination of these data sources resulted in considerable efficiency gains for national and subnational estimates.
CANADIAN JOURNAL OF FOREST RESEARCH
(2021)
Article
Environmental Sciences
Kristian Skau Bjerreskov, Thomas Nord-Larsen, Rasmus Fensholt
Summary: This study successfully classified the Danish landscape into forest/non-forest and further into forest types and species using a cloud-based approach with multi-temporal Sentinel 1 and 2 data, achieving high producer accuracies for non-forest, forest types (broadleaf and conifer), and moderate accuracies for tree species groups. The results have applications in Danish national accounting of greenhouse gas emissions from forests, resource assessment, and assessment of forest biodiversity potentials.
Article
Forestry
D. O. J. Reventlow, T. Nord-Larsen, P. Biber, T. Hilmers, H. Pretzsch
Summary: Despite a lack of knowledge on the effects of different strategies, ongoing conversion of even-aged stands to uneven-aged forests in Europe was simulated using SILVA. Different conversion strategies were compared in terms of mean annual increment, structural development, and expectation value over a 150-year conversion period._results showed variations in outcomes, with gap creation showing faster stand heterogeneity development and economic returns.
EUROPEAN JOURNAL OF FOREST RESEARCH
(2021)
Article
Agronomy
Anders Taeroe Nielsen, Thomas Nord-Larsen, Niclas Scott Bentsen
Summary: The study analyzed the impact of transitioning from coal or natural gas to forest biomass on carbon dynamics in district heat and combined heat and power plants in Denmark. Results showed that for coal to biomass transitions, carbon payback time ranged from 0 to 13 years, while for natural gas to biomass transitions, it ranged from 9 to 34 years. Key factors influencing short carbon payback time and emission savings include the use of truly residual biomass, biomass harvest from productive forests, and short transport distances.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2021)
Article
Forestry
Yannik E. Roell, Thomas Nord-Larsen, Amelie Beucher, Mette B. Greve, Mogens H. Greve
Summary: Mapping and validating ecograms for different tree species in Denmark, this study suggests that ecograms are effective tools for determining the suitability of sites for afforestation. However, different tree species may require individual ecogram templates.
Article
Environmental Sciences
Louis de Wergifosse, Frederic Andre, Hugues Goosse, Andrzej Boczon, Sebastien Cecchini, Albert Ciceu, Alessio Collalti, Nathalie Cools, Ettore D'Andrea, Bruno De Vos, Rafiq Hamdi, Morten Ingerslev, Morten Alban Knudsen, Anna Kowalska, Stefan Leca, Giorgio Matteucci, Thomas Nord-Larsen, Tanja Gm Sanders, Andreas Schmitz, Piet Termonia, Elena Vanguelova, Bert Van Schaeybroeck, Arne Verstraeten, Lars Vesterdal, Mathieu Jonard
Summary: This study focused on simulating oak and beech forest growth under different climate change scenarios using the HETEROFOR model. The results showed that climate change had varying effects on net primary production (NPP) in different zones, influenced by factors such as air temperature, rainfall, soil water reserve, and stand characteristics. Increasing CO2 concentration significantly boosted NPP for oak and beech forests.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Biodiversity Conservation
Miren del Rio, Hans Pretzsch, Ricardo Ruiz-Peinado, Herve Jactel, Lluis Coll, Magnus Lof, Jorge Aldea, Christian Ammer, Admir Avdagi, Ignacio Barbeito, Kamil Bielak, Felipe Bravo, Gediminas Brazaitis, Jakub Cerny, Catherine Collet, Sonia Condes, Lars Drossler, Marek Fabrika, Michael Heym, Stig-Olof Holm, Gro Hylen, Aris Jansons, Viktor Kurylyak, Fabio Lombardi, Bratislav Matovi, Marek Metslaid, Renzo Motta, Thomas Nord-Larsen, Arne Nothdurft, Jan den Ouden, Maciej Pach, Marta Pardos, Charlotte Poeydebat, Quentin Ponette, Tomas Perot, Ditlev Otto Juel Reventlow, Roman Sitko, Vit Sramek, Mathias Steckel, Miroslav Svoboda, Kris Verheyen, Sonja Vospernik, Barbara Wolff, Tzvetan Zlatanov, Andres Bravo-Oviedo
Summary: The increasing disturbances in monocultures around the world have led to a growing demand for species mixing. This study analyzed forest data from a wide range of climate conditions in Europe and found that mixing species can significantly increase both the level and stability of stand growth. Temperature was identified as a key factor destabilizing stand growth, which can be mitigated by species mixing. Asynchrony between species was confirmed as the main driver of temporal stability in mixed stands.
JOURNAL OF APPLIED ECOLOGY
(2022)
Article
Forestry
Hans Pretzsch, Andres Bravo-Oviedo, Torben Hilmers, Ricardo Ruiz-Peinado, Lluis Coll, Magnus Lof, Shamim Ahmed, Jorge Aldea, Christian Ammer, Admir Avdagic, Ignacio Barbeito, Kamil Bielak, Felipe Bravo, Gediminas Brazaitis, Jakub Cerny, Catherine Collet, Lars Drossler, Marek Fabrika, Michael Heym, Stig-Olof Holm, Gro Hylen, Aris Jansons, Viktor Kurylyak, Fabio Lombardi, Bratislav Matovic, Marek Metslaid, Renzo Motta, Thomas Nord-Larsen, Arne Nothdurft, Cristobal Ordonez, Jan den Ouden, Maciej Pach, Marta Pardos, Quentin Ponette, Tomas Perot, Ditlev Otto Juel Reventlow, Roman Sitko, Vit Sramek, Mathias Steckel, Miroslav Svoboda, Enno Uhl, Kris Verheyen, Sonja Vospernik, Barbara Wolff, Tzvetan Zlatanov, Miren del Rio
Summary: The study found that the stand structure becomes more homogeneous with increasing site quality, with the asymmetry of competition and growth distribution increasing with higher site index. Mortality mainly eliminates small trees with increasing site index, reducing size variation and structural heterogeneity.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Materials Science, Paper & Wood
Maria Fredriksson, Markus Rueggeberg, Thomas Nord-Larsen, Greeley Beck, Emil Engelund Thybring
Summary: The moisture content of wood cell walls is determined by both environmental conditions and material characteristics of the wood. This study used data exploration to identify the important wood characteristics determining the cell wall moisture content. Chemical composition was found to be the most important predictor of the cell wall moisture content, while in the low moisture range, cellulose crystallinity and hydroxyl accessibility were important predictors, and at high moisture contents, microfibril orientation in the cell walls was important. Overall, no single wood characteristic had a major effect on the cell wall moisture content.
Article
Forestry
Sonja Vospernik, Michael Heym, Hans Pretzsch, Maciej Pach, Mathias Steckel, Jorge Aldea, Gediminas Brazaitis, Andres Bravo-Oviedo, Miren Del Rio, Magnus Lof, Marta Pardos, Kamil Bielak, Felipe Bravo, Lluis Coll, Jakub Cerny, Lars Droessler, Martin Ehbrecht, Aris Jansons, Nathalie Korboulewsky, Marion Jourdans, Thomas Nord-Larsen, Arne Nothdurft, Ricardo Ruiz-Peinado, Quentin Ponette, Roman Sitkov, Miroslav Svoboda, Barbara Wolff
Summary: Quercus robur/Quercus petraea and Pinus sylvestris are economically important tree species in Europe, and their growth can be affected by climate, competition, and mixture. This study investigated the diameter growth of these species in monospecific and mixed stands along an ecological gradient. The final model explained 87% of the total variation in diameter increment, with significant effects of age, climate variables, local competition, mixture, and stand structure. The results showed that tree growth declined with age and local density, but increased with social position and mixture.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
D. O. J. Reventlow, T. Nord-Larsen, H. Sorensen, J. P. Skovsgaard
Summary: In Europe, even-aged, pure stands of Norway spruce grown outside its natural range are vulnerable to butt rot, windthrow, and bark beetle infestation. Climate change may worsen these issues, making it necessary to convert Norway spruce plantations into more diverse forests with greater resistance and resilience towards natural disturbances. A field experiment in western Denmark studied the mortality and height growth of European beech, European silver fir, and Douglas fir planted under a shelterwood of Norway spruce. The results showed that shelter density and species composition influenced the mortality and height growth of the planted trees, suggesting specific recommendations for initial shelter densities for each species.
Article
Forestry
Hans Pretzsch, Miren del Rio, Catia Arcangeli, Kamil Bielak, Malgorzata Dudzinska, David Ian Forrester, Ulrich Kohnle, Thomas Ledermann, Robert Matthews, Ralf Nagel, Francois Ningre, Thomas Nord-Larsen, Henryk Szeligowski, Peter Biber
Summary: This study reveals that in unmanaged forests, tree density decreases over time due to competition and natural mortality. The net growth rate of trees also decreases with age, while the mortality rate remains relatively stable. These findings have significant implications for understanding and managing forest stands.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Siyu Liu, Martin Brandt, Thomas Nord-Larsen, Jerome Chave, Florian Reiner, Nico Lang, Xiaoye Tong, Philippe Ciais, Christian Igel, Adrian Pascual, Juan Guerra-Hernandez, Sizhuo Li, Maurice Mugabowindekwe, Sassan Saatchi, Yuemin Yue, Zhengchao Chen, Rasmus Fensholt
Summary: This study used nanosatellite imagery to create maps of above-ground biomass of trees in Europe and quantified the contribution of urban and agricultural trees to national carbon stocks. The results showed that although urban and agricultural trees only accounted for 2% of the total tree biomass, there were significant variations between countries, and urban trees made a substantial contribution to national carbon stocks.
Article
Multidisciplinary Sciences
Sizhuo Li, Martin Brandt, Rasmus Fensholt, Ankit Kariryaa, Christian Igel, Fabian Gieseke, Thomas Nord-Larsen, Stefan Oehmcke, Ask Holm Carlsen, Samuli Junttila, Xiaoye Tong, Alexandre d'Aspremont, Philippe Ciais
Summary: Sustainable tree resource management is crucial for mitigating climate warming, fostering a green economy, and protecting habitats. In this study, a deep learning-based framework was developed to provide location, crown area, and height information of individual overstory trees from aerial images at the country scale. The results showed a low bias in identifying large trees and highlighted the significant contribution of trees outside forests to total tree cover, which is often overlooked in national inventories. However, the framework had a higher bias when evaluating all taller trees, including small or understory trees that are undetectable. Moreover, the framework was easily transferable to data from Finland, despite different data sources.
