Article
Forestry
Lamginsang Thomte, Santosh K. Shah, Nivedita Mehrotra, Anup Saikia, Abani K. Bhagabati
Summary: In the past decade, significant progress has been made in tree-ring studies using the tropical conifer, Pinus kesiya. Multiple tree-ring networks have been established in previously unexplored regions in Northeast India, Southwest China, and Vietnam. Climate response of P. kesiya tree-rings has been examined and utilized for temperature and soil moisture reconstructions, complementing short instrumental records in South and Southeast Asia. The application of stable isotopes, wood density, and blue intensity measurements has advanced P. kesiya studies, and future research should focus on establishing discrete proxies using multiple tree-ring parameters.
Article
Environmental Sciences
William Marchand, Martin P. Girardin, Henrik Hartmann, Mathieu Levesque, Sylvie Gauthier, Yves Bergeron
Summary: The increase in frequency, intensity, and duration of drought events affects forested ecosystems by causing trees to adjust stomatal conductance to maximize the trade-off between carbon gains and water losses. This study found that a decline in growth rates of black spruce and jack pine in an exceptionally dry period from 1988 to 1992 was related to physiological adjustments of trees to drought. Isotopic signals were linked to climate moisture index, vapor pressure deficit, and annual snowfall amount, impacting tree growth and physiological responses.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Geography, Physical
Yun-Li Yin, Zaw Zaw, Xin-Hua Peng, Hui Zhang, Pei-Li Fu, Wen-Li Wang, Achim Braeuning, Ze-Xin Fan
Summary: High-resolution paleoclimate proxy records are lacking in southwest China's subtropical region. In this study, we constructed a tree ring-width chronology of Tsuga dumosa in central Yunnan Province to gain insights into hydroclimate variability. Our reconstruction of the March-June Standardized Precipitation-Evapotranspiration Index (SPEI) from 1826 to 2020 CE showed inter-annual to inter-decadal variations and an increasing occurrence of severe dry or wet events in recent years. The high frequency cycle of 2-8 years in our drought reconstruction series captures hydrological signals over a larger area.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Biology
Alejandra G. Vovides, Marie-Christin Wimmler, Falk Schrewe, Thorsten Balke, Martin Zwanzig, Cyril Piou, Etienne Delay, Jorge Lopez-Portillo, Uta Berger
Summary: Root grafts, the union of roots of different trees, are common and may reduce stress and facilitate resource exchange. Research shows that the probability and frequency of root grafting increase with environmental stress, leading to smaller group sizes of trees within grafted groups.
COMMUNICATIONS BIOLOGY
(2021)
Article
Forestry
Hanxue Liang, Zhou Wang, Shaowei Jiang, Cun Zhang, Jianguo Huang
Summary: This study investigates the growth-climate relationship of Pinus taiwanensis in subtropical China, and finds a significant change in the relationship between 1980-1990. During this period, tree growth was mainly negatively affected by precipitation in September of the growing season. From 1990 to 2014, a significant negative correlation appeared between tree growth and sunshine duration from March to April in the growing season. These findings highlight the need to consider growth-climate inconsistency in dendroclimatology studies in subtropical China.
Article
Agronomy
Karolina Jorgensen, Gustaf Granath, Bjorn D. Lindahl, Joachim Strengbom
Summary: The study found that in boreal Pinus sylvestris forest plantations, abstention from thinning can significantly increase carbon (C) stock, while fertilization combined with abstention from thinning further increases C stock and reduces soil respiration rates. Although promising in increasing the C sink of forests, changed forest management practices may have undesired effects on economic revenue, timber quality, biodiversity, and delivery of other ecosystem services.
Article
Forestry
Jiachuan Wang, Shuheng Li, Yili Guo, Qi Yang, Rui Ren, Yijie Han
Summary: This study investigates the relationships between the radial growth of Larix principis-rupprechtii at different elevations and climatic factors. The results show that temperature and precipitation have a significant impact on the radial growth of L. principis-rupprechtii at different elevations. There is a lag effect in the response of L. principis-rupprechtii at mid-elevation to climate factors. Spring temperatures and winter precipitation are the main climatic factors that restrict the growth of L. principis-rupprechtii under warming and drying climate trends. The growth of L. principis-rupprechtii is somewhat restricted by drought. These findings provide valuable information for the management and sustainable development of L. principis-rupprechtii under changing climate conditions.
Article
Forestry
Liliana V. Belokopytova, Dina F. Zhirnova, David M. Meko, Elena A. Babushkina, Eugene A. Vaganov, Konstantin V. Krutovsky
Summary: The study in southern Siberia analyzed data from meteorological stations and found that soil temperature has an influence on tree-ring width, with the correlation varying depending on soil depth. The highest correlation between tree-ring width and soil temperature was found at a depth of 40 cm.
Article
Forestry
Phillimon Ng'andwe, Donald Chungu, Frank Tailoka, Michael Bwembya
Summary: This study investigated the response of non-native Pinus kesiya in Zambia to climate change, finding that dry season precipitation is a limiting factor for tree growth. The tree-ring width chronology at different sites is positively modulated by precipitation, but negatively by solar radiation and temperature, with trees near emission sources showing significantly higher growth than those at remote sites.
Article
Ecology
Pavel Janda, Olga N. Ukhvatkina, Anna S. Vozmishcheva, Alexander M. Omelko, Jiri Dolezal, Pavel V. Krestov, Alexander A. Zhmerenetsky, Jong-Suk Song, Jan Altman
Summary: This study investigates the impact of tropical cyclone activities on forest canopy regeneration strategies, and reveals a decrease in gap trees and an increase in released trees along a latitudinal gradient of decreasing tropical cyclone activity.
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2021)
Article
Forestry
Joao Campoa, Joshua Puhlick
Summary: This study examines the impact of climate fluctuations on the growth and drought resilience of the endangered longleaf pine ecosystem in the southeastern USA. The results show that recent climate conditions have become more influential on the growth of longleaf pine, and the species is less resilient to droughts compared to previous decades. Understanding these impacts is crucial for restoration efforts and implementing silvicultural treatments to reduce tree vulnerability to drought.
Article
Microbiology
Valeriia Mishcherikova, Jurate Lynikiene, Adas Marciulynas, Arturas Gedminas, Oleh Prylutskyi, Diana Marciulyniene, Audrius Menkis
Summary: The diversity and composition of fungal communities in Pinus sylvestris and Picea abies stands along the latitudinal gradient of these tree species distributions in Europe were assessed to model possible changes imposed by climate change. Results showed that both the latitude and the host tree species had a limited effect on fungal communities, which were primarily influenced by environmental variables and substrate. The predicted shift in fungal communities is towards habitats with a lower temperature amplitude and increased precipitation during the driest month, but the suitability of these habitats is expected to decrease in the future compared to current conditions.
Article
Engineering, Environmental
Xun Wang, Wei Yuan, Che-Jen Lin, Fei Wu, Xinbin Feng
Summary: The accuracy of mercury dendrochemistry is questioned due to knowledge gaps in Hg translocation in tree-ring. Results show that Hg concentrations in tree-ring do not accurately reconstruct the temporal trend of Hg production. The isotopic profiles of Hg in tree-ring exhibit variability and can be used to reconstruct atmospheric Hg pollution levels and emission source shifts.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Forestry
Zachary Grzywacz, Amy Hessl, Kevin Anchukaitis, Shikha Sharma, Michael N. Evans, Scott Nichols
Summary: This study aims to explore the sources of variability in a stable oxygen isotope chronology derived from A. selaginoides from Mount Read, Tasmania. The results indicate that the stable oxygen isotope is correlated with local temperature and vapor pressure deficit, and negatively correlated with precipitation in the source region. However, there is high inter-tree variation in the measurements, especially between 1960 and 1990. This study suggests that this stable oxygen isotope proxy may provide additional information for the reconstruction of Southern Hemisphere climate dynamics.
Article
Biodiversity Conservation
Katarzyna Izworska, Elzbieta Muter, Pawel Matulewski, Tomasz Zielonka
Summary: This study focuses on the tree-ring changes of Stone pine in cliff forests of the Western Carpathians to better understand their growth release pattern and the influence of climate. The growth of stone pine is strongly related to summer temperature and the negative influence of summer precipitation has decreased in recent decades. The adaptability of Swiss stone pine to extreme cliff environments and its long lifespan make it an excellent species for studying climate change.
ECOLOGICAL INDICATORS
(2023)
Article
Forestry
Igor Drobyshev, Mats Niklasson, Nina Ryzhkova, Frank Gotmark, Guilherme Pinto, Matts Lindbladh
Summary: In southern Swedish forests, historical fires did not cause severe damage to oak trees, but instead provided regeneration opportunities. Following fires, oak regeneration rates and growth speeds significantly increased, indicating that low-severity fires help maintain natural oak regeneration.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Forestry
Igor Drobyshev, Yves Bergeron, Nina Ryzhkova, Alexander Kryshen
Summary: This study found that the Arctic climate and changes in North Atlantic circulation exert an important control on fire activity in Scandinavia. Changes in sea ice cover are likely correlated with the development of persistent high-pressure systems, leading to increased water deficit in forest fuels and higher fire hazard. The Arctic climate is expected to be an important future factor in controlling fire activity in the Nordic region.
Article
Meteorology & Atmospheric Sciences
Zhongwei Liu, Jonathan M. Eden, Bastien Dieppois, Igor Drobyshev, Carolina Gallo, Matthew Blackett
Summary: The meteorological conditions that coincided with extreme wildfires in Siberia during 2020 were 80% more likely due to global warming compared to a century ago.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2022)
Article
Ecology
N. Ryzhkova, A. Kryshen, M. Niklasson, G. Pinto, A. Aleinikov, I Kutyavin, Y. Bergeron, Adam A. Ali, I Drobyshev
Summary: Understanding the long-term history of forest fires in boreal landscapes is crucial for studying the interactions between climate and fire, as well as the impact of human activities on natural fire regimes. This study reconstructs a 600-year fire history in a pine-dominated landscape in the Republic of Komi, Russia, and finds that climate plays a more significant role in shaping fire regimes compared to human activities.
ECOLOGICAL MONOGRAPHS
(2022)
Article
Forestry
I. Drobyshev, N. Ryzhkova, M. Niklasson, A. Zhukov, I. Mullonen, G. Pinto, A. Kryshen'
Summary: Dendrochronological reconstructions provide insights into historical climate-fire-human interactions and help calibrate future fire hazard projections. This study presents a 420-year long fire reconstruction in the Veps Nature Park, North-West Russia, which showcases varying fire cycles over different periods and a regional fire cycle of approximately 1300 years in modern times. The findings highlight the significance of seasonal differences in fire activity and suggest that the fire regime in the Veps Highland remained largely natural until the 20th century.
FOREST ECOLOGY AND MANAGEMENT
(2022)
Article
Agronomy
Claudele Ghotsa Mekontchou, Daniel Houle, Yves Bergeron, Melanie Roy, Monique Gardes, Armand Seguin, Igor Drobyshev
Summary: The composition of mycorrhizal communities differs between black spruce and trembling aspen in both pure and mixed stands. Soil chemistry influences species-specific mycorrhizal communities in mixed stands, while tree species determine mycorrhizal community structure. The differences in mycorrhizal communities between the two tree species likely contribute to nutrient uptake partitioning in mixed stands.
Article
Ecology
Emmanuel Amoah Boakye, Daniel Houle, Yves Bergeron, Martin P. Girardin, Igor Drobyshev
Summary: Increasing air temperatures and changing precipitation patterns due to climate change can influence tree growth in boreal forests. Insect outbreaks, which occur periodically, can also affect the growth trajectory of trees, making it challenging to quantify the climate signal in growth dynamics over longer timeframes. This study found that spruce budworm outbreaks may offset the growth increases resulting from a warmer climate. The findings highlight the importance of considering insect defoliation in models predicting future forest productivity.
ECOLOGY AND EVOLUTION
(2022)
Article
Ecology
Ewa Zin, Lukasz Kuberski, Igor Drobyshev, Mats Niklasson
Summary: This study provides a dendrochronological reconstruction of historical fire sizes in Central Europe and analyzes the minimum extent of fires in Bialowieza Forest. The research highlights the role of fire disturbance in the forest and shows the significant contribution of human-related ignitions. The findings contribute to the understanding of historic fires and provide baseline information for the conservation of European forests.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Article
Ecology
Ellis Q. Margolis, Christopher H. Guiterman, Raphael D. Chavardes, Jonathan D. Coop, Kelsey Copes-Gerbitz, Denyse A. Dawe, Donald A. Falk, James D. Johnston, Evan Larson, Hang Li, Joseph M. Marschall, Cameron E. Naficy, Adam T. Naito, Marc-Andre Parisien, Sean A. Parks, Jeanne Portier, Helen M. Poulos, Kevin M. Robertson, James H. Speer, Michael Stambaugh, Thomas W. Swetnam, Alan J. Tepley, Ichchha Thapa, Craig D. Allen, Yves Bergeron, Lori D. Daniels, Peter Z. Fule, David Gervais, Martin P. Girardin, Grant L. Harley, Jill E. Harvey, Kira M. Hoffman, Jean M. Huffman, Matthew D. Hurteau, Lane B. Johnson, Charles W. Lafon, Manuel K. Lopez, R. Stockton Maxwell, Jed Meunier, Malcolm North, Monica T. Rother, Micah R. Schmidt, Rosemary L. Sherriff, Lauren A. Stachowiak, Alan Taylor, Erana J. Taylor, Valerie Trouet, Miguel L. Villarreal, Larissa L. Yocom, Karen B. Arabas, Alexis H. Arizpe, Dominique Arseneault, Alicia Azpeleta Tarancon, Christopher Baisan, Erica Bigio, Franco Biondi, Gabriel D. Cahalan, Anthony Caprio, Julian Cerano-Paredes, Brandon M. Collins, Daniel C. Dey, Igor Drobyshev, Calvin Farris, M. Adele Fenwick, William Flatley, M. Lisa Floyd, Ze'ev Gedalof, Andres Holz, Lauren F. Howard, David W. Huffman, Jose Iniguez, Kurt F. Kipfmueller, Stanley G. Kitchen, Keith Lombardo, Donald McKenzie, Andrew G. Merschel, Kerry L. Metlen, Jesse Minor, Christopher D. O'Connor, Laura Platt, William J. Platt, Thomas Saladyga, Amanda B. Stan, Scott Stephens, Colleen Sutheimer, Ramzi Touchan, Peter J. Weisberg
Summary: This study investigates fire regimes in North American forests using tree-ring fire scars and reveals important patterns and trends. The study also finds that modern fires are burning in similar climate spaces as historical fires, but disproportionately in warmer regions.
Article
Forestry
Raphael D. Chavardes, Victor Danneyrolles, Jeanne Portier, Martin P. Girardin, Dorian M. Gaboriau, Sylvie Gauthier, Igor Drobyshev, Dominic Cyr, Tuomo Wallenius, Yves Bergeron
Summary: This study aims to understand the variation in burn rates in North American boreal forests since the early 1700s. The results show a declining trend in burn rates during the historical period, particularly in the early to mid 1900s. Compared to the historical period, the modern period has lower and less variable burn rates. There are divergent trends in burn rates between eastern and northwestern sites during the modern period.
INTERNATIONAL JOURNAL OF WILDLAND FIRE
(2022)
Article
Forestry
Colleen M. Sutheimer, Jed Meunier, Igor Drobyshev, Michael C. Stambaugh, Sara C. Hotchkiss, Eric Rebitzke, Volker C. Radeloff
Summary: By analyzing an extensive fire-scar network in the upper Great Lakes Region, this study evaluated the historical fire regimes over the past 350 years. The findings revealed the significant influence of climate factors on fire frequency and seasonality in the region, and highlighted the importance of recurrent fires in shaping and maintaining forest resilience.
INTERNATIONAL JOURNAL OF WILDLAND FIRE
(2023)
Article
Geography, Physical
Cheima Barhoumi, Guillemette Menot, Sebastien Joannin, Adam A. Ali, Salome Ansanav-Alex, Yulia Golubeva, Dmitry Subetto, Alexander Kryshen, Igor Drobyshev, Odile Peyron
Summary: The study explores the relationships between climate, fire, and vegetation in the Northern Urals region of Eurasia. It finds that climate had a significant impact on regional vegetation between 10,000 and 4000 cal Yr BP, while fire activity affected vegetation dynamics between 4000 and 600 cal Yr BP. Human activity and climate also influenced fire regimes and vegetation dynamics in the region. The results are consistent with evidence from neighboring regions and climate models.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Forestry
Emmanuel A. Boakye, Yves Bergeron, Igor Drobyshev, Arvin Beekharry, David Voyer, Alexis Achim, Jian-Guo Huang, Pierre Grondin, Steve Bedard, Filip Havreljuk, Fabio Gennaretti, Martin P. Girardin
Summary: Sugar maple growth in the southern range has been declining since the 1980s, due to various factors including heatwaves, drought, frosts, acidic deposition, and insect defoliation. This study examines maple growth in northern regions and finds that declining growth trends persist, posing a risk to ecosystem services. The decline in growth is correlated with summer vapour pressure deficit and may limit the expansion of sugar maples due to climate change.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Plant Sciences
Igor Drobyshev, Alexei Aleinikov, Olga Lisitsyna, Vadim Aleksutin, Foma Vozmitel, Nina Ryzhkova
Summary: This study analyzed the spatial and temporal patterns of slash-and-burn practices in the northern Ural mountains from 1880 to 1894. The results showed a significant positive correlation between the number of burns and the village population, indicating that local demand for food influenced the frequency of burns. The amount of agricultural land also showed a strong positive correlation with the village population, supporting the interpretation of burns as an important food procurement tool.
VEGETATION HISTORY AND ARCHAEOBOTANY
(2023)
Article
Geosciences, Multidisciplinary
Carolina Gallo, Jonathan M. Eden, Bastien Dieppois, Igor Drobyshev, Peter Z. Fule, Jesus San-Miguel-Ayanz, Matthew Blackett
Summary: Weather and climate have a significant impact on global wildfire patterns and the distribution of burnable areas. According to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC-AR6), fire danger is expected to increase in many regions due to warmer temperatures and drier conditions in the near future. General circulation models (GCMs) are important tools for understanding the evolution of fire danger under a changing climate. However, current fire risk scenarios have not fully considered the errors and biases in GCMs. This study evaluates the representation of fire weather indicators simulated by 16 GCMs and emphasizes the importance of GCM evaluation and selection for developing reliable projections of future climate-driven fire danger.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
