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Journal articles on the topic 'Point dendrometer'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

van, der Maaten Ernst, der Maaten Theunissen Marieke van, and Heinrich Spiecker. "Temporally resolved intra-annual wood density variations in European beech (Fagus sylvatica L.) as affected by climate and aspect." Annals of Forest Research 55, no. 1 (2012): 113–24.

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We investigated the temporal variability of intra-annual wood density variations in European beech (Fagus sylvatica L.) in a valley in southwestern Germany. Samples were collected from 11 beech trees growing at north-west (NW) and south-west (SW) exposed slopes. High-frequency densitometry was used to obtain wood density profiles. We converted radial positions within these profiles to a seasonal time scale over automatic point dendrometer data for the period 2001-2006. Temporally resolved wood density data was analyzed both visually and statistically, using correlation analysis and multiple li

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Giovannelli, Alessio, Valerio Giorgio Muzzini, Maria Laura Traversi, and Bruno De Cinti. "Early Detection of Decline in Tree Health. Could the Pace of Stem Water Be an Effective Indicator?" Environmental Sciences Proceedings 3, no. 1 (2020): 44. http://dx.doi.org/10.3390/iecf2020-08112.

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The health and vitality assessment of each single tree is one of the most important actions for an optimal urban forest management program. The development of new technology able to continuously monitor the tree vitality and underlying trends, could help reduce the frequency of the monitoring assessment and help overcome problems related to the rapid decline in tree health. Our aim was to test the suitability of point dendrometers in evaluating the tree vitality trend through high resolution stem cycle analyses. To achieve this objective, we installed point dendrometers on twelve Pinus radiata

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Clark, Neil A., Randolph H. Wynne, and Daniel L. Schmoldt. "A Review of Past Research on Dendrometers." Forest Science 46, no. 4 (2000): 570–76. http://dx.doi.org/10.1093/forestscience/46.4.570.

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Abstract The purpose of a dendrometer is to measure tree diameter. Contact and noncontact dendrometers accomplish this task by collecting different metrics, including girth or distance between tangent points on a tree stem. Many dendrometers have been developed in the last quarter century and many have been retired. This article summarizes instrument developments and application results, contains an interpretation of the results, and provides guidance for dendrometer selection. FOR. SCI. 46(4):570–576.

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Stangler, Dominik Florian, Hans-Peter Kahle, Martin Raden, Elena Larysch, Thomas Seifert, and Heinrich Spiecker. "Effects of Intra-Seasonal Drought on Kinetics of Tracheid Differentiation and Seasonal Growth Dynamics of Norway Spruce along an Elevational Gradient." Forests 12, no. 3 (2021): 274. http://dx.doi.org/10.3390/f12030274.

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Research Highlights: Our results provide novel perspectives on the effectiveness and collapse of compensatory mechanisms of tracheid development of Norway spruce during intra-seasonal drought and the environmental control of intra-annual density fluctuations. Background and Objectives: This study aimed to compare and integrate complementary methods for investigating intra-annual wood formation dynamics to gain a better understanding of the endogenous and environmental control of tree-ring development and the impact of anticipated climatic changes on forest growth and productivity. Materials an

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Oliveira, Lelis Araujo de, Jackson Moreira Oliveira, Fabio Barros de Sousa, Fiterlinge Martins de Sousa, Jorge Everaldo de Oliveira, and Marcos Benedito Caldas Costa. "A Prototype of Fiber Bragg Grating Dendrometric Sensor for Monitoring the Growth of the Diameter of Trees in the Amazon." Journal of Computational and Theoretical Nanoscience 17, no. 11 (2020): 4841–48. http://dx.doi.org/10.1166/jctn.2020.9408.

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In this work, we propose a fiber optic point dendrometer with two Fiber Bragg Grating (FBG) sensors capable of simultaneously measuring strain and temperature considered suitable for monitoring the growth of the diameter of trees in the Amazon compared to conventional electrical sensors and we perform a simulation on the performance of the sensors for measuring the diameter using the Coupled Mode Theory (CMT) and the Transfer Matrix Method (TMM). A measure of the diameter variation was suggested and the sensitivity of the sensors were analyzed from the measurements of the displacements of the

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Ehrenberger, Wilhelm, Simon Rüger, Ronald Fitzke, et al. "Concomitant dendrometer and leaf patch pressure probe measurements reveal the effect of microclimate and soil moisture on diurnal stem water and leaf turgor variations in young oak trees." Functional Plant Biology 39, no. 4 (2012): 297. http://dx.doi.org/10.1071/fp11206.

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Tree water relations and their dependence on microclimate and soil moisture were studied over several months in young oaks (Quercus robur L.) subjected in large lysimeter-based open top chambers to environments with a controlled soil water supply. Automated single point dendrometers and the recently developed leaf patch clamp pressure (LPCP) probe were used for monitoring water-related stem radius variations (ΔW) and turgor-dependent leaf patch pressures (Pp). Both parameters showed distinct diurnal patterns with sharp negative and positive peaking of ΔW and Pp, respectively, after solar noon

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J. Wang and T. W. Sammis. "New Automatic Band and Point Dendrometers for Measuring Stem Diameter Growth." Applied Engineering in Agriculture 24, no. 6 (2008): 731–42. http://dx.doi.org/10.13031/2013.25361.

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Alday, Josu G., Jesús Julio Camarero, Jesús Revilla, and Víctor Resco de Dios. "Similar diurnal, seasonal and annual rhythms in radial root expansion across two coexisting Mediterranean oak species." Tree Physiology 40, no. 7 (2020): 956–68. http://dx.doi.org/10.1093/treephys/tpaa041.

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Abstract Dendrometers are being increasingly used to measure stem radius changes in trees and to unravel the mechanisms underlying stem daily rhythms of radial expansion and contraction. Nevertheless, automated dendrometers have not been often used to measure root radius dynamics, their relationship with environmental variables and the influence of endogenous processes, especially in drought-prone Mediterranean areas. Here, we measured root radius dynamics of two coexisting oak species (the evergreen Quercus ilex L. and the deciduous Quercus faginea Lam). Our goals were to describe annual, sea

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Rennie, J. C., G. B. Wood, H. T. Schreuder, and H. G. Lund. "Point-Model Based Sampling in Forestry: Principles and Practices." Southern Journal of Applied Forestry 15, no. 3 (1991): 109–13. http://dx.doi.org/10.1093/sjaf/15.3.109.

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Abstract Point-model based sampling is described for timber inventory. Point-model based sampling is an improvement on point-3P sampling because the number of sample trees selected for detailed dendrometry is completely controlled. Field studies indicate that estimates derived from it are comparable to those from point-3P sampling. However, serious errors in estimates could arise from point-model based sampling if the linear model relating volume to D2H is incorrect. South. J. Appl. For. 15(3):109-113.

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Biondi, Franco, and Peter Hartsough. "Using Automated Point Dendrometers to Analyze Tropical Treeline Stem Growth at Nevado de Colima, Mexico." Sensors 10, no. 6 (2010): 5827–44. http://dx.doi.org/10.3390/s100605827.

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11

Grosenberg, L. R. "Tilted Tree Hypsometry." Forest Science 37, no. 6 (1991): 1581–90. http://dx.doi.org/10.1093/forestscience/37.6.1581.

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Abstract State-of-the-art technique for measuring height of leaning, forked, crooked, or curved trees is briefly reviewed. The most efficient method employs an expensive tiltable range- finding dendrometer which can measure various types of leaning or nonlinear trees. However, a much less expensive tiltable nonranging hypsometer can be employed on straight leaning trees. This recently developed technique uses spherical triangulation observation points to eliminate bias attributable to lean in the slant plane toward or away from the observer. Necessary formulae and many numeric examples are giv

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Wells, Lucas A., and Woodam Chung. "A Deformable Shape Model for Automatic and Real-Time Dendrometry." Forests 14, no. 12 (2023): 2299. http://dx.doi.org/10.3390/f14122299.

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We present a stereo image-based algorithm for tree stem diameter measurement and form analysis. The algorithm uses planar parametric curves to represent two-dimensional projections of tree stems in stereo images. The curves evolve according to an energy formulation based on the gradients of the images and inductive priors related to biomechanics and morphology of tree stems. After energy minimization, the curves are reconstructed to three dimensions, allowing for diameter measurements at any point along the height of the stem. We describe the algorithm and report the validation test results co

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Carrasco, L. O., S. J. Bucci, F. G. Scholz, et al. "WATER STORAGE DISCHARGE AND REFILLING IN THE MAIN STEMS OF CANOPY TREE SPECIES INVESTIGATED USING FREQUENCY DOMAIN REFLECTOMETRY AND ELECTRONIC POINT DENDROMETERS." Acta Horticulturae, no. 991 (May 2013): 17–24. http://dx.doi.org/10.17660/actahortic.2013.991.1.

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Zweifel, Roman, Sophia Etzold, David Basler, et al. "TreeNet: The Biological Drought and Growth Indicator Network." Frontiers in Forests and Global Change 4, no. 776905 (2021): 1–14. https://doi.org/10.5281/zenodo.5879101.

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The TreeNet research and monitoring network has been continuously collecting data from point dendrometers and air and soil microclimate using an automated system since 2011. The goal of TreeNet is to generate high temporal resolution datasets of tree growth and tree water dynamics for research and to provide near real-time indicators of forest growth performance and drought stress to a wide audience. This paper explains the key working steps from the installation of sensors in the field to data acquisition, data transmission, data processing, and online visualization. Moreover, we discuss the

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Esteves, Barbara dos Santos, Lidiane de Lima Lousada, Elias Fernandes de Sousa, and Eliemar Campostrini. "Advanced techniques using the plant as indicator of irrigation management." Ciência Rural 45, no. 5 (2015): 821–27. http://dx.doi.org/10.1590/0103-8478cr20140501.

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The methodologies which are considered the most promising for irrigation management are those based on the analysis of the water status of the plants themselves. This justifies the study and improvement of indicators based on automatic and continuous measures to enable real-time monitoring data, as indices from sap flow, dendrometry and leaf turgor pressure techniques. The aim of this paper is to analyze such methodologies in order to demonstrate their principles, advantages and challenges. In conclusion, the methodologies analyzed still have many technological advances and challenges before b

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Mitchell, Patrick J., and Dale Worledge. "Fine-scale mapping of sapwood anatomical properties reveals plasticity in hydraulics during water deficit." Journal of Plant Hydraulics 2 (November 10, 2015): e003. http://dx.doi.org/10.20870/jph.2015.e003.

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Growth responses to water deficit translate into discernible changes in the structure of woody tissues and provide an integrated record of historical water availability throughout the life of the individual. The highly dynamic nature of woody growth can impart adaptive changes in physiological performance through changes in xylem elements that regulate water transport. Here, we present a case study of how sapwood anatomical properties can be mapped using point dendrometers, in a diffuse porous, Eucalyptus spp. to reveal plasticity in hydraulic architecture under water deficit. Reductions in st

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Zweifel, Roman, David M. Drew, Fritz Schweingruber, and Geoffrey M. Downes. "Xylem as the main origin of stem radius changes in Eucalyptus." Functional Plant Biology 41, no. 5 (2014): 520. http://dx.doi.org/10.1071/fp13240.

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The state-of-the-art interpretation of stem radius changes (DRTotal) for tree water relations is based on knowledge from mostly slow growing tree species. The ratio between diurnal size fluctuations of the rigid xylem (DRXylem) and the respective fluctuations of the elastic bark (DRBark) is known to be small (<0.4) and is of importance for the localisation of water storage dynamics in stems. In this study, fast growing Eucalyptus globulus Labill. in Tasmania were investigated by point dendrometers in order to investigate tree water relations. Unexpectedly, DRXylem was found to be the main d

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Giovannelli, Alessio, Maria Laura Traversi, Monica Anichini, Yasutomo Hoshika, Silvano Fares, and Elena Paoletti. "Effect of Long-Term vs. Short-Term Ambient Ozone Exposure on Radial Stem Growth, Sap Flux and Xylem Morphology of O3-Sensitive Poplar Trees." Forests 10, no. 5 (2019): 396. http://dx.doi.org/10.3390/f10050396.

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High ozone (O3) pollution impairs the carbon and water balance of trees, which is of special interest in planted forests. However, the effect of long-term O3 exposure on tree growth and water use, little remains known. In this study, we analysed the relationships of intra-annual stem growth pattern, seasonal sap flow dynamics and xylem morphology to assess the effect of long term O3 exposure of mature O3-sensitive hybrid poplars (‘Oxford’ clone). Rooted cuttings were planted in autumn 2007 and drip irrigated with 2 liters of water as ambient O3 treatment, or 450 ppm ethylenediurea (N-[2-(2-oxo

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Donnellan Barraclough, Alicia, Roman Zweifel, Jarrod Cusens, and Sebastian Leuzinger. "Disentangling the net: concomitant xylem and over-bark size measurements reveal the phloem-generated turgor signal behind daytime stem swelling in the mangrove Avicennia marina." Functional Plant Biology 46, no. 5 (2019): 393. http://dx.doi.org/10.1071/fp18155.

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Daytime stem shrinking is a well recorded phenomenon: trees dip into their internal water stores to meet imbalances between water supply and demand. Uncertainty surrounds the mechanisms behind the unusual pattern of daytime stem swelling, presented by species like the mangrove Avicennia marina (Forssk.) Vierh., and which is thought to originate in the osmotic adjustment of storage tissues. We performed on-xylem radius change (XRC) and whole-stem radius change (SRC) measurements with point dendrometers to ascertain if the swelling of the stem is due to an increase in the thickness of the phloem

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Oberhuber, Walter, Andreas Gruber, and Gerhard Wieser. "Seasonal and Daily Xylem Radius Variations in Scots Pine Are Closely Linked to Environmental Factors Affecting Transpiration." Biology 12, no. 9 (2023): 1251. http://dx.doi.org/10.3390/biology12091251.

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Seasonal and daily radius variations in the xylem (XRV) and inner bark (IBV) of mature Scots pine trees (Pinus sylvestris) were determined during April 2019–October 2021 at a drought-prone inner alpine site (c. 750 m asl; Tyrol, Austria) by applying point dendrometers. XRVs were also related to environmental factors to evaluate the drivers of XRV during the growing season. XRV records revealed that the xylem width (i) started to shrink around the onset of radial stem growth in April, (ii) consistently decreased by c. 50 µm at the time when air temperature (T) and vapor pressure deficit (VPD) r

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Dong, Manyu, Bingqin Wang, Yuan Jiang, and Xinyuan Ding. "Environmental Controls of Diurnal and Seasonal Variations in the Stem Radius of Platycladus orientalis in Northern China." Forests 10, no. 9 (2019): 784. http://dx.doi.org/10.3390/f10090784.

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Fine-resolution studies of stem radial variation over short timescales throughout the year can provide insight into intra-annual stem dynamics and improve our understanding of climate impacts on tree physiology and growth processes. Using data from high-resolution point dendrometers collected from Platycladus orientalis (Linn.) trees between September 2013 and December 2014, this study investigated the daily and seasonal patterns of stem radial variation in addition to the relationships between daily stem radial variation and environmental factors over the growing season. Two contrasting daily

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Venier, Sarah, Matthias Steinparzer, and Thomas Dirnböck. "Zöbelboden Forwards: Towards an observatory for the resilience of European forests." ARPHA Conference Abstracts 8 (May 28, 2025): e149507. https://doi.org/10.3897/aca.8.e149507.

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Forest ecosystems cover almost 40% of the European land surface and play a vital role in mitigating the ongoing climate crisis. However, increasing climate extremes, such as droughts, heatwaves, and disturbances, pose significant challenges to forest health, ecosystem services, and societal benefits. Rapid and precise forest monitoring is essential for assessing these impacts and informing adaptive forest management.The ForestWard Observatory, a prototype developed within the Horizon Europe FORWARDS project, is designed to monitor and evaluate the impact of climate change on European forest ec

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Sulzer, Markus, Julian Brzozon, Andreas Christen, et al. "The ECOSENSE forest – enriching tower-based flux measurements of carbon and water exchange with novel distributed sensor networks." ARPHA Conference Abstracts 8 (May 28, 2025): e149267. https://doi.org/10.3897/aca.8.e149267.

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ECOSENSE is a Collaborative Research Centre (CRC) funded by the German Research Foundation DFG to develop and test novel environmental sensing techniques and apply them to enhance our understanding and modelling of water and carbon fluxes in forest ecosystems. Specifically, with a distributed sampling approach, ECOSENSE studies the impact of forest heterogeneity in space and time in response to hydro-climatic stresses (Werner et al. 2024). Core to the project is the ECOSENSE forest, located in the foothills of the Black Forest in Germany (48.2685 N, 7.8782 E). The forest primarily consists of

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van den Ende, Martijn, Eléonore Oberlé, Thierry Améglio, Robin Ardito, and Gildas Gâteblé. "Using fibre-optic sensing for non-invasive, continuous dendrometry of mature tree trunks." Tree Physiology, May 20, 2025. https://doi.org/10.1093/treephys/tpaf058.

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Abstract Dendrometry is the main non-invasive macroscopic technique commonly used in plant physiology and ecophysysiology studies. Over the years several types of dendrometric techniques have been developed, each with their respective strengths and drawbacks. Automatic and continuous monitoring solutions are being developed, but are still limited, particularly for non-invasive monitoring of large-diameter trunks. In this study, we propose a new type of automated dendrometer based on distributed fibre-optic sensing that continuously measures the change in stem circumference, is non-invasive, an

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Krause, Stuart, and Tanja GM Sanders. "Mapping Tree Water Deficit with UAV Thermal Imaging and Meteorological Data." Remote Sensing in Earth Systems Sciences, October 23, 2023. http://dx.doi.org/10.1007/s41976-023-00094-9.

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AbstractThe mapping of forest stands and individual trees affected by drought stress is a crucial step in targeted forest management, aimed at fostering resilient and diverse forests. Unoccupied aerial vehicle (UAV)-based thermal sensing is a promising method for obtaining high-resolution thermal data. However, the reliability of typical low-cost sensors adapted for UAVs is compromised due to various factors, such as internal sensor dynamics and environmental variables, including solar radiation intensity, relative humidity, object emissivity and wind. Additionally, accurately assessing drough

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Manandhar, Anju, Ian M. Rimer, Talitha Soares Pereira, Javier Pichaco, Fulton E. Rockwell, and Scott A. M. McAdam. "Dynamic soil hydraulic resistance regulates stomata." New Phytologist, August 2, 2024. http://dx.doi.org/10.1111/nph.20020.

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Summary The onset of stomatal closure reduces transpiration during drought. In seed plants, drought causes declines in plant water status which increases leaf endogenous abscisic acid (ABA) levels required for stomatal closure. There are multiple possible points of increased belowground resistance in the soil–plant atmospheric continuum that could decrease leaf water potential enough to trigger ABA production and the subsequent decreases in transpiration. We investigate the dynamic patterns of leaf ABA levels, plant hydraulic conductance and the point of failure in the soil–plant conductance i

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Rocha, Eva, and Steffen Holzkämper. "Assessing urban climate effects on Pinus sylvestris with point dendrometers: a case study from Stockholm, Sweden." Trees, January 19, 2021. http://dx.doi.org/10.1007/s00468-020-02082-8.

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Abstract Key message Extreme drought conditions, in addition to the urban heat island effect, modify the growth response and water storage dynamics of urban Scots pine trees in the Stockholm region. Abstract Changes in surface properties of the urban environments significantly impact the local microclimate. While urban trees are known for providing important thermal regulation, the impact of urban climate on tree growth remains relatively unexplored. The present study focuses on the climate response and growth dynamics of urban Scots pine trees (P. sylvestris) in comparison to their rural coun

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Delapierre, Fabien, Patrick Fonti, Heike Lischke, and Christine Moos. "A method to quantify and account for the hygroscopic effect in stem diameter variations." Frontiers in Forests and Global Change 6 (June 15, 2023). http://dx.doi.org/10.3389/ffgc.2023.1167542.

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Dendrometers recording stem diameter variations (SDV) at high-resolution are useful to assess trees' water relation since water reserves are stored in the elastic tissue of the bark. These tissues typically shrink during the day as they release water when evaporative demand is high and swell during the night as they are replenished when evaporative demand is low, generating the typical SDV profile known as the diel SDV cycle. However, similar SDV cycles have been observed on dead trees due to the hygroscopic shrinking and swelling of the dead bark tissues. In order to remove this hygroscopic e

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Zweifel, Roman, Sophia Etzold, David Basler, et al. "TreeNet–The Biological Drought and Growth Indicator Network." Frontiers in Forests and Global Change 4 (November 4, 2021). http://dx.doi.org/10.3389/ffgc.2021.776905.

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The TreeNet research and monitoring network has been continuously collecting data from point dendrometers and air and soil microclimate using an automated system since 2011. The goal of TreeNet is to generate high temporal resolution datasets of tree growth and tree water dynamics for research and to provide near real-time indicators of forest growth performance and drought stress to a wide audience. This paper explains the key working steps from the installation of sensors in the field to data acquisition, data transmission, data processing, and online visualization. Moreover, we discuss the

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Spangenberg, Göran, Reiner Zimmermann, Manfred Küppers, and Sebastian Hein. "High-resolution dendrometer measurements reveal different responses of Douglas-fir to extreme drought in 2018 depending on soil and rooting characteristics." Frontiers in Plant Science 15 (November 26, 2024). http://dx.doi.org/10.3389/fpls.2024.1485440.

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IntroductionDouglas-fir (Pseudotsuga menziesii (Mirb.) Franco) is considered an important non-native substitute tree species in Europe, especially for Norway spruce (Picea abies (L.) Karst.), mainly due to its higher drought tolerance. However, Douglas-fir has also shown increasing mortality in certain regions of the world. One of the main reasons is the increase in drought and heat periods due to climate change. There is still a need for research on the influence of important soil properties and rooting characteristics on the drought tolerance of Douglas-fir. Therefore, we analyzed the influe

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Venier, Sarah, Matthias Steinparzer, and Thomas Dirnböck. "Zöbelboden Forwards: Towards an observatory for the resilience of European forests." ARPHA Conference Abstracts 8 (May 28, 2025). https://doi.org/10.3897/aca.8.e149507.

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Forest ecosystems cover almost 40% of the European land surface and play a vital role in mitigating the ongoing climate crisis. However, increasing climate extremes, such as droughts, heatwaves, and disturbances, pose significant challenges to forest health, ecosystem services, and societal benefits. Rapid and precise forest monitoring is essential for assessing these impacts and informing adaptive forest management. The ForestWard Observatory, a prototype developed within the Horizon Europe FORWARDS project, is designed to monitor and evaluate the impact of climate change on European forest e

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Li, Weixin, Fengxin Yue, Chunkai Wang, Jinglei Liao, and Xianliang Zhang. "Climatic influences on intra-annual stem variation of Larix principis-rupprechtii in a semi-arid region." Frontiers in Forests and Global Change 5 (September 15, 2022). http://dx.doi.org/10.3389/ffgc.2022.948022.

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Intra-annual monitoring of stem radial growth dynamics of trees and detecting how tree growth responds to changing climatic conditions are crucial for predicting the future growth dynamics under increasing drought conditions. Here, we monitored the intra-annual stem radial growth dynamics of seven Larix principis-rupprechtii using point dendrometers to investigate the influence of climate variables on the intra-annual growth of L. principis-rupprechtii in the growing season. The average stem radial growth of L. principis-rupprechtii started on 29 April and stopped on 17 August based on the sig

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Dulamsuren, Choimaa, Heinz Coners, Christoph Leuschner, and Markus Hauck. "Climatic control of high-resolution stem radius changes in a drought-limited southern boreal forest." Trees, January 13, 2023. http://dx.doi.org/10.1007/s00468-022-02384-z.

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Abstract Key message Stem radius changes measured at high temporal resolution in a drought-limited southern boreal forest were primarily related to soil temperature and partly soil moisture variation, but only weakly to VPD. Abstract Forest productivity at the southern fringe of the boreal forest biome in Inner Asia is strongly drought-limited, as is evident from dendrochronological analyses. Using electronic point dendrometers, we studied the climate response of stem radius changes at high temporal resolution (10-min intervals) in a mixed larch–birch forest in northern Mongolia in a drought y

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Liu, Hui, Aimin Liao, Yike Li, Pengcheng Hu, and Hongxi Pang. "Intra‐annual radial growth of Quercus acutissma and its response to hydrometeorological factors in the Nandadish experimental catchment, eastern China." Hydrological Processes 38, no. 6 (2024). http://dx.doi.org/10.1002/hyp.15207.

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AbstractInvestigating the relationship between tree growth within a year and environmental factors is crucial for understanding how climate change affects seasonal tree growth patterns. In this study, high‐resolution point dendrometers were used to monitor the stem radial changes of Oak trees (Quercus acutissma) over two years (2020 and 2021) in the eastern subtropical monsoon region of China. We find that the main growth period of Oak trees spans from March to September, and air temperature significantly affects the growth onset of Oak trees but with no clear impact on their growth cessation.

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Absalom, Eleanor, Anthony Turner, Matthew Clements, Holly Croft, and Jill Edmondson. "Impact of Phytophthora Disease on the Growth, Physiology and Ecosystem Services of Common Lime (Tilia × europaea) Street Trees." Plant-Environment Interactions 6, no. 3 (2025). https://doi.org/10.1002/pei3.70054.

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ABSTRACTTree diseases are a growing threat to ecosystem service provision by trees in cities and towns globally. Phytophthora is a widespread genus of plant pathogens (oomycetes) that have contributed to significant tree mortality worldwide; however, there has been little research into the impact of Phytophthora infection on urban trees or on ecosystem services important for urban populations, such as urban cooling. This study utilizes a network of Internet‐of‐Things linked sap flow sensors and point dendrometers collecting data every ~10 min throughout the growing season, combined with ground

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Güney, Aylin, Roman Zweifel, Semra Türkan, Reiner Zimmermann, Magnus Wachendorf, and Coşkun Okan Güney. "Drought responses and their effects on radial stem growth of two co-occurring conifer species in the Mediterranean mountain range." Annals of Forest Science 77, no. 4 (2020). http://dx.doi.org/10.1007/s13595-020-01007-2.

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Abstract Key message Patterns of stem radial variations showed thatCedrus libaniA. Rich. was less limited by summer drought than co-occurringJuniperus excelsaM. Bieb.Cedrus libanirecovered faster from tree water deficit and showed significantly higher radial growth rates and annual stem increments thanJ. excelsa. However, the ability ofJ. excelsato grow more hours per year may indicate a potential benefit in more extreme conditions. Context Knowledge about species-specific drought responses is needed to manage productive forests in drought prone areas. Under water shortage, trees commonly show

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Pasqualotto, Gaia, Lorenzo Ascari, Giovanni Bicego, et al. "Radial stem growth dynamics and phenology of a multi-stemmed species (Corylus avellana L.) across orchards in the Northern and Southern hemispheres." Tree Physiology, May 13, 2021. http://dx.doi.org/10.1093/treephys/tpab069.

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Abstract Climate change and the global economy impose new challenges in the management of food-producing trees and require studying how to model plant physiological responses, namely growth dynamics and phenology. Hazelnut (Corylus avellana L.) is a multi-stemmed forest species domesticated for nut production and now widely spread across different continents. However, information on stem growth and its synchronization with leaf and reproductive phenology is extremely limited. This study aimed at (i) defining the sequencing of radial growth phases in hazelnut (onset, maximum growth and cessatio

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Knüver, Timo, Andreas Bär, Elias Hamann, et al. "Stress dose explains drought recovery in Norway spruce." Frontiers in Plant Science 16 (March 6, 2025). https://doi.org/10.3389/fpls.2025.1542301.

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IntroductionUnderstanding the stress recovery of trees, particularly with respect to increasing droughts due to climate change, is crucial. An often-overlooked aspect is how short versus long drought events of high intensity (i.e., low and high stress dose) result in stress damage and affect post-stress recovery.MethodsThis study examines the stress and recovery dynamics of 3-year-old Picea abies following a short drought (n = 5) of 18 days or a long drought (n = 9) of 51 days during late summer. We particularly assessed how the recovery of canopy conductance and tree transpiration is linked t

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Bou Nader, Khalil, Leonard Maximilian Pfahl, Eric Gomès, and Manfred Stoll. "Evaluation of grapevine trunk size by use of a handheld camera and three-dimensional modelling." OENO One 53, no. 4 (2019). http://dx.doi.org/10.20870/oeno-one.2019.53.4.2310.

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Background and aims: Measurement of grapevine size is necessary to assess carbon reserves at the level of individual vines and to estimate the carbon sequestration potential of vineyards. Methods of measurement rely mostly on traditional dendrological techniques that may be prone to error. In this study, we examined the use of structure-from-motion with multiview stereophotogrammetry (SfM-MVS) to obtain accurate measurements of vine trunk thickness and volume. SfM-MVS enables the creation of scaled, georeferenced three-dimensional models based on a set of overlapping photographs.Methods and re

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Askarieh, Ali, Miren del Río, Jorge Aldea, José Riofrío, and Felipe Bravo. "Radial increment dynamics of Maritime pine (Pinus pinaster Ait.) in pure and mixed stands with Scots pine (Pinus sylvestris L.) under changing environmental conditions." European Journal of Forest Research, January 13, 2024. http://dx.doi.org/10.1007/s10342-023-01650-0.

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AbstractForest dynamics are undergoing profound alteration due to the fact that climate change is increasing the frequency and severity of abiotic and biotic forest disturbances. Because of the unpredictable nature of the drought periods and the variation in their severity, Mediterranean forests are typically more vulnerable. Mediterranean Pinus pinaster forests are showing decay symptoms linked to climate change. There is clear evidence that promoting mixtures can serve as an effective forest adaptation strategy. In this regard, we sought to better understand the responses of P. pinaster radi

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Hackmann, Christina, Holger Sennhenn-Reulen, Martina Mund, and Christian Ammer. "Local neighborhood affects stem rehydration under drought: evidence from mixtures of European beech with two different conifers." Tree Physiology, September 8, 2024. http://dx.doi.org/10.1093/treephys/tpae114.

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Abstract Mixed-species forests are, for multiple reasons, promising options for forest management in Central Europe. However, the extent to which interspecific competition affects tree hydrological processes is not clear. High-resolution dendrometers capture sub-daily variations in stem diameter; they can simultaneously monitor stem growth (irreversible changes in diameter) and water status (reversible changes) of individual trees. Using the information on water status, we aimed to assess potential effects of tree species mixture, expressed as local neighborhood identity, on night-time rehydra

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Stovall, Atticus E. L., David W. MacFarlane, Debbie Crawford, Tom Jovanovic, Jereme Frank, and Cris Brack. "Comparing mobile and terrestrial laser scanning for measuring and modelling tree stem taper." Forestry: An International Journal of Forest Research, March 24, 2023. http://dx.doi.org/10.1093/forestry/cpad012.

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Abstract Measuring and modelling the shape of tree stems is a fundamental component of forest inventory systems for both commercial and biological purposes. The change in diameter of the stem along its length (a.k.a. 'taper') is one of the most important and widely used means of predicting tree stem volume. Until recently, the options for obtaining accurate estimates of stem taper and developing stem taper models have been limited to measurements of felled trees or the use of optical dendrometers on standing live trees. Here, we tested both a tripod-mounted terrestrial laser scanner (TLS; a Fo

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Sulzer, Markus, Julian Brzozon, Andreas Christen, et al. "The ECOSENSE forest – enriching tower-based flux measurements of carbon and water exchange with novel distributed sensor networks." ARPHA Conference Abstracts 8 (May 28, 2025). https://doi.org/10.3897/aca.8.e149267.

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ECOSENSE is a Collaborative Research Centre (CRC) funded by the German Research Foundation DFG to develop and test novel environmental sensing techniques and apply them to enhance our understanding and modelling of water and carbon fluxes in forest ecosystems. Specifically, with a distributed sampling approach, ECOSENSE studies the impact of forest heterogeneity in space and time in response to hydro-climatic stresses (Werner et al. 2024). Core to the project is the ECOSENSE forest, located in the foothills of the Black Forest in Germany (48.2685 N, 7.8782 E). The forest primarily consists of

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