Showing 1,861 - 1,880 results of 2,027 for search '"Forest inventory"', query time: 0.21s Refine Results
  1. 1861

    Productivity-Based Land Suitability and Management Sensitivity Analysis: The Eucalyptus <i>E. urophylla</i> × <i>E. grandis</i> Case by Miaoying Shi, Jintao Xu, Shilei Liu, Zhenci Xu

    Published 2022-02-01
    “…In this study, we perform a systematic analysis of factors influencing eucalyptus growth through plot records from the National Forest Inventories and satellite images. We find primary restricting factors for eucalyptus growth via machine learning algorithms with random forests and accumulated local effects plots, as conventional forest growth models are inadequate to calculate the causal effect with the large number of environmental and socioeconomic factors. …”
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    Article
  2. 1862

    Direct and automatic measurements of stem curve and volume using a high-resolution airborne laser scanning system by Eric Hyyppä, Antero Kukko, Harri Kaartinen, Xiaowei Yu, Jesse Muhojoki, Teemu Hakala, Juha Hyyppä

    Published 2022-06-01
    “…Today, high-quality reference tree measurements, including the position, diameter, height and volume, are cumbersome and slow to carry out, but highly needed for forest inventories based on airborne laser scanning. Mobile laser scanning technologies hold the promise for collecting reference data for forest inventories with an extremely high efficiency. …”
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    Article
  3. 1863
  4. 1864

    Remote Sensing Support for the Gain-Loss Approach for Greenhouse Gas Inventories by Ronald E. McRoberts, Erik Næsset, Christophe Sannier, Stephen V. Stehman, Erkki O. Tomppo

    Published 2020-06-01
    “…For tropical countries that do not have extensive ground sampling programs such as national forest inventories, the gain-loss approach for greenhouse gas inventories is often used. …”
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    Article
  5. 1865

    Spatial patterns in recent forest growth trends across the Czech Republic by Daniela Machová, Jakub Kašpar, Tomáš Kolář, Michal Rybníček, Miroslav Svoboda, Pavel Šamonil, Václav Treml, Jan Tumajer, Ivana Vašíčková, Monika Vejpustková, Lukáš Brůha

    Published 2024-12-01
    “…Assessing the spatial variation of growth trends is challenging due to the point relevance of available empirical data including forest inventories and tree-ring width chronologies. Here, we used a database of tree-ring width chronologies from 596 sites and spatial models to describe the growth trends of five tree species across the Czech Republic between 1990 and 2018. …”
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    Article
  6. 1866

    Fast Treetops Counting Using Mathematical Image Symmetry, Segmentation, and Fast k-Means Classification Algorithms by Eduardo Orbe-Trujillo, Carlos J. Novillo, Miguel Pérez-Ramírez, Jose Luis Vazquez-Avila, Agustín Pérez-Ramírez

    Published 2022-03-01
    “…This research would help the automatic, massive and recurring counting of treetops with the aim of obtaining forest inventories in order to take care of forests.…”
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    Article
  7. 1867

    The Effect of Forest Mask Quality in the Wall-to-Wall Estimation of Growing Stock Volume by Elia Vangi, Giovanni D’Amico, Saverio Francini, Francesca Giannetti, Bruno Lasserre, Marco Marchetti, Ronald E. McRoberts, Gherardo Chirici

    Published 2021-03-01
    “…Information about forest cover and its characteristics are essential in national and international forest inventories, monitoring programs, and reporting activities. …”
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    Article
  8. 1868

    Forest Transitions in the United States, France and Austria: dynamics of forest change and their socio- metabolic drivers by Simone Gingrich, Andreas Magerl, Sarah Matej, Julia Le Noë

    Published 2022-01-01
    “…By combining evidence from forest inventories with the forest model CRAFT, we first quantify how change in forest area (ΔA), maximum biomass density (ΔBdmax), and actual biomass as fraction of maximum biomass (ΔFmax) shaped forest dynamics. …”
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    Article
  9. 1869

    Comparison of Model-Assisted Endogenous Poststratification Methods for Estimation of Above-Ground Biomass Change in Oregon, USA by Francisco Mauro, Vicente J. Monleon, Andrew N. Gray, Olaf Kuegler, Hailemariam Temesgen, Andrew T. Hudak, Patrick A. Fekety, Zhiqiang Yang

    Published 2022-11-01
    “…Quantifying above-ground biomass changes, Δ<i>AGB</i>, is key for understanding carbon dynamics. National Forest Inventories, NFIs, aims at providing precise estimates of Δ<i>AGB</i> relying on model-assisted estimators that incorporate auxiliary information to reduce uncertainty. …”
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    Article
  10. 1870

    Maximizing carbon sequestration potential in Chinese forests through optimal management by Zhen Yu, Shirong Liu, Haikui Li, Jingjing Liang, Weiguo Liu, Shilong Piao, Hanqin Tian, Guoyi Zhou, Chaoqun Lu, Weibin You, Pengsen Sun, Yanli Dong, Stephen Sitch, Evgenios Agathokleous

    Published 2024-04-01
    “…In this study, we employ a process-based biogeochemical model to make projections by using national forest inventories, covering approximately 415,000 permanent plots, revealing an expansion in biomass carbon stock by 13.6 ± 1.5 Pg C from 2020 to 2100, with additional sink through augmentation of wood product pool (0.6-2.0 Pg C) and spatiotemporal optimization of forest management (2.3 ± 0.03 Pg C). …”
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    Article
  11. 1871

    Evolution of canker severity and stem quality on African mahogany growth by Andressa Ribeiro, Maurício Sangiogo, Rodolfo Molinário de Sousa, Antonio Carlos Ferraz Filho

    Published 2023-12-01
    “…The study area is located in the state of Minas Gerais, Brazil, where continuous forest inventories were conducted over six years for data collection. …”
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    Article
  12. 1872

    Landscape patterns of species-level association between ground-beetles and overstory trees in boreal forests of western Canada (Coleoptera, Carabidae) by Colin Bergeron, John Spence, Jan Volney

    Published 2011-11-01
    “…Landscape patterns of association described here are based on characteristics that can be directly linked to provincial forest inventories, providing a basis that is already available for use of tree species as biodiversity surrogates in boreal forest land management.…”
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    Article
  13. 1873

    A Novel Methodology to Estimate Single-Tree Biophysical Parameters from 3D Digital Imagery Compared to Aerial Laser Scanner Data by Rocío Hernández-Clemente, Rafael M. Navarro-Cerrillo, Francisco J. Romero Ramírez, Alberto Hornero, Pablo J. Zarco-Tejada

    Published 2014-11-01
    “…It quantitatively demonstrates that low-cost CIR cameras can be used to estimate both single-tree height and LAI in forest inventories.…”
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    Article
  14. 1874

    Estimating wood quality attributes from dense airborne LiDAR point clouds by Nicolas Cattaneo, Stefano Puliti, Carolin Fischer, Rasmus Astrup

    Published 2024-01-01
    “…Mapping individual tree quality parameters from high-density LiDAR point clouds is an important step towards improved forest inventories. We present a novel machine learning-based workflow that uses individual tree point clouds from drone laser scanning to predict wood quality indicators in standing trees. …”
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    Article
  15. 1875

    Relation entre la composition floristique et des indicateurs de la fragmentation du paysage dans une région de transition forêt-savane ivoirienne by Barima, YSS., Barbier, N., Ouattara, B., Bogaert, J.

    Published 2010-01-01
    “…In this article, we analyze the case of forest-savanna contact of East Côte d'Ivoire, where savannas progress quickly to the detriment of forests. Using forest inventories and the spectral and spatial properties of a Landsat ETM+ image, we established the existence of two independent floristic gradients within forests, which were correlated to various aspects of forest fragmentation. …”
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    Article
  16. 1876

    Development of allometric model for mixed and shorea tree species through synergistic analysis of remote sensing data / Nafisah Khalid by Khalid, Nafisah

    Published 2017
    “…Due to the current list, mapping and monitoring the forest inventories of this species is necessary to provide the regular report for Reducing Emissions from Deforestation and Degradation (REDD) program especially concerning the accurate estimation of total aboveground biomass in calculating the carbon stock. …”
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  17. 1877

    Rapid Static Positioning Using a Four System GNSS Receivers in the Forest Environment by Michał Brach

    Published 2022-01-01
    “…Global Navigation Satellite Systems (GNSS) are crucial elements used in forest inventories. Forest metrics modeling efficacy depends on the accuracy of determining sample plot locations by GNSS. …”
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    Article
  18. 1878

    Detection of Root, Butt, and Stem Rot presence in Norway spruce with hyperspectral imagery by Benjamin Allen, Michele Dalponte, Ari Hietala, Hans Ørka, Erik Næsset, Terje Gobakken

    Published 2022-01-01
    “…Remote sensing technologies such as airborne laser scanning and aerial imagery are already used to reduce the reliance on fieldwork in forest inventories. This study aimed to use remote sensing to detect rot in spruce ( L. …”
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    Article
  19. 1879

    Efficiency of ultrasonic Vertex III hypsometer compared to the most commonly used hypsometers in Croatian forestry by Mario Božić, Juro Čavlović, Nikola Lukić, Krunoslav Teslak, Danijel Kos

    Published 2005-01-01
    “…Despite a slightly higher price of the Vertex, its speed, precision, accuracy and simplicity of use, as well as the possibility of simple circular plot forest inventories rank it above all the other instruments.…”
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    Article
  20. 1880

    Edge effect on the spatial distribution of trees in an Araucaria Rainforest fragment in Brazil by Ângela Maria Klein Hentz, Ana Paula Dalla Corte, Carlos Roberto Sanquetta, Christopher Thomas Blum

    “…We performed annual forest inventories inside two one-hectare plots, divided in 10 rectangular subplots, delimited by every 10 meters of edge distance. …”
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    Article