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Journal articles on the topic 'Stand volume'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Stolle, Lorena, Ana Paula Dalla Corte, Carlos Roberto Sanquetta, Alexandre Behling, Ângela Maria Klein Hentz, and Rozane de Loyola Eisfeld. "Predicting Stand Volume by Number of Trees Automatically Detected in UAV Images: An Alternative Method for Forest Inventory." Forests 12, no. 11 (2021): 1508. http://dx.doi.org/10.3390/f12111508.

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In this study, we estimate the forest stock volume by multiplying the number of trees detected remotely by the estimated mean individual volume of the population (individual approach). A comparison was made with the conventional inventory method (area approach), which included 100 simulations of a simple random sampling process and a Bootstrap resampling. The study area included three stands: stand 1, 16-year-old pine; stand 2, 7-year-old pine; and stand 3, 5-year-old eucalyptus. A census was carried out in each stand for the variables diameter and total height. Individual volume was estimated

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2

Chen, H. YH, K. Klinka, A. H. Mathey, X. Wang, P. Varga, and C. Chourmouzis. "Are mixed-species stands more productive than single-species stands: an empirical test of three forest types in British Columbia and Alberta." Canadian Journal of Forest Research 33, no. 7 (2003): 1227–37. http://dx.doi.org/10.1139/x03-048.

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Stand volumes were determined for naturally established, even-aged, single- and mixed-species stands involving three combinations of shade-tolerant and shade-intolerant conifers on similar sites: (i) western redcedar western hemlock (Thuja plicata Donn ex D. Don Tsuga heterophylla (Raf.) Sarg.), (ii) lodgepole pine western larch (Pinus contorta Dougl. ex Loud. Larix occidentalis Nutt.), and (iii) lodgepole pine black spruce (Pinus contorta Picea mariana (Mill.) BSP). Stand volume was significantly increased with site index and breast-height age in all three studies. Stand volume wa

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Martínez Pastur G, J., M. Cellini J, V. Lencinas M, and L. Peri P. "Stand growth model using volume increment/basal area ratios." Journal of Forest Science 54, No. 3 (2008): 102–8. http://dx.doi.org/10.17221/3100-jfs.

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Estimation of stand growth is crucial for forest planning. Estimations were usually done using fixed values, and recently growth equations have been used. An alternative is through stand growth models. The objective was to develop a simple model for<I> Nothofagus pumilio</I> stands with full density along site quality and age gradients. The sample was obtained from 125 stands. Data on forest structure and samples for tree-ring measurement were taken in all trees to estimate growths using biometric models previously developed. The growth values of each plot during the last twenty ye

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Carlet, Yasmine. "“Stand down Margaret !”." Volume !, no. 1 : 1 (May 15, 2002): 131–34. http://dx.doi.org/10.4000/volume.2550.

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5

Ung, Chhun-Huor, and Denis Ouellet. "Stand volume tables: Application to black spruce stands of Lebel-sur-Quévillon." Forestry Chronicle 67, no. 6 (1991): 712–15. http://dx.doi.org/10.5558/tfc67712-6.

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Within the framework of large-scale forest management, the application of Eichhorn's law, which employs dominant height or mean height exclusively to predict tree volumes per hectare, is certainly rapid, but high accuracy is not guaranteed. Substantial error occurred when this method was used in a study of boreal black spruce stands (Picea mariana (Mill.) B.S.P.). Use of both basal area per hectare and dominant height, however, permitted estimation of total volume per hectare and volume to 9 cm top with only 11 and 12% error, respectively. The form factors for total volume and volume to 9 cm t

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Kärenlampi, Petri P. "Diversity of Carbon Storage Economics in Fertile Boreal Spruce (Picea Abies) Estates." Sustainability 13, no. 2 (2021): 560. http://dx.doi.org/10.3390/su13020560.

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A “normal forest”, an idealized estate with a uniform distribution of stand ages, can be used in the study of sustainable management practices. As the normal forest contains a variety of stand ages, the characteristics of the stands can be represented in terms of a “normal stand”, with properties known as a function of age. This paper takes seven never-thinned stands as seven “normal stands”, which describe seven estates of normal forest. The intention is to study the robustness of carbon storage microeconomics to varying estate characteristics. It was found that the economically optimal rotat

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Kärenlampi, Petri P. "Diversity of Carbon Storage Economics in Fertile Boreal Spruce (Picea Abies) Estates." Sustainability 13, no. 2 (2021): 560. http://dx.doi.org/10.3390/su13020560.

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A “normal forest”, an idealized estate with a uniform distribution of stand ages, can be used in the study of sustainable management practices. As the normal forest contains a variety of stand ages, the characteristics of the stands can be represented in terms of a “normal stand”, with properties known as a function of age. This paper takes seven never-thinned stands as seven “normal stands”, which describe seven estates of normal forest. The intention is to study the robustness of carbon storage microeconomics to varying estate characteristics. It was found that the economically optimal rotat

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8

Lappi, Juha. "Calibration of Height and Volume Equations with Random Parameters." Forest Science 37, no. 3 (1991): 781–801. http://dx.doi.org/10.1093/forestscience/37.3.781.

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Abstract A new method for using sample tree heights and diameters to calibrate (localize) height/diameter and volume/diameter equations for a given stand is presented and illustrated with Scots pine data. The height/diameter and volume/diameter equations are assumed to contain random parameters that vary from stand to stand. The means, variances and both within-equation and between-equation covariances of the random parameters are estimated using data where volumes of trees from several stands are accurately measured. In applications, the random parameters of the height and volume equations of

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9

Mehtätalo, Lauri, and Annika Kangas. "An approach to optimizing field data collection in an inventory by compartments." Canadian Journal of Forest Research 35, no. 1 (2005): 100–112. http://dx.doi.org/10.1139/x04-139.

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This study presents models for the expected error of the total volume and saw timber volume due to sampling errors of stand measurements. The measurements considered are horizontal point sample plots, stem numbers from circular plots, sample tree heights, sample order statistics (i.e., quantile trees), and sample tree heights from the previous inventory. Different measurement strategies were constructed by systematically varying the numbers of these measurements. A model system developed for this study was used in a data set of 170 stands to predict the total volume and saw timber volume of ea

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10

Sterba, Hubert, and Robert A. Monserud. "Potential Volume Yield for Mixed-Species Douglas-Fir Stands in the Northern Rocky Mountains." Forest Science 41, no. 3 (1995): 531–45. http://dx.doi.org/10.1093/forestscience/41.3.531.

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Abstract A procedure for estimating potential volume yield is developed for stands containing dominant Douglas-fir in the Northern Rocky Mountains. Earlier work on site index and height growth and maximum stand density was the basis for deriving a stand form factor equation that provides potential volume estimates for a continuum of even- to uneven-aged mixed-species stands. The coefficients of this equation (which explained 84% of the variation) differ with respect to habitat type. The combination of asymptotic dominant height, potential basal area, and stand form factor allows for estimating

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11

Brūmelis, Guntis, Iluta Dauškane, Didzis Elferts, Linda Strode, Tatjana Krama, and Indrikis Krams. "Estimates of Tree Canopy Closure and Basal Area as Proxies for Tree Crown Volume at a Stand Scale." Forests 11, no. 11 (2020): 1180. http://dx.doi.org/10.3390/f11111180.

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Research Highlights: Studies on tree canopy dwelling species often require simple proxies of tree canopy volume estimated at a stand level. These include allometrically related tree crown parameters such as crown area and basal area, and canopy cover. Background and Objectives: In monoculture Scot’s pine and mixed pine/Norway spruce forest, we aimed to test the relationships between tree diameter at breast height (DBH) and tree crown volume at a tree level and between densitometer canopy closure estimates and tree crown volume at a stand level. Materials and Methods: The study was carried out

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Knoebel, Bruce R., Harold E. Burkhart, and Donald E. Beck. "A Growth and Yield Model for Thinned Stands of Yellow-Poplar." Forest Science 32, suppl_2 (1986): a0001—z0002. http://dx.doi.org/10.1093/forestscience/32.s2.a0001.

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Abstract Simultaneous growth and yield equations were developed for predicting basal area growth and cubic-foot volume growth and yield in thinned stands of yellow-poplar. A joint loss function involving both volume and basal area was used to estimate the coefficients in the system of equations. The estimates obtained were analytically compatible, invariant for projection length, and numerically equivalent with alternative applications of the equations. Given estimates of basal area and cubic-foot volume from these equations, board-foot volumes can also be calculated. As an adjunct to the stan

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13

O'Hara, Kevin L., and Chadwick D. Oliver. "Three-Dimensional Representation of Douglas-Fir Volume Growth: Comparison of Growth and Yield Models with Stand Data." Forest Science 34, no. 3 (1988): 724–43. http://dx.doi.org/10.1093/forestscience/34.3.724.

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Abstract Growth and yield estimates for unthinned stands from the Douglas-fir Stand Simulator (DFSIM; Curtis et al. 1981) and the Tree and Stand Simulator (TASS; Mitchell and Cameron 1985) were used to construct graphical three-dimensional representations of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) stand growth on site index 44 meters (50 year). The three-dimensional models used three variables: trees per hectare, breast height age, and either mean tree volume or stand volume. The TASS and DFSIM models were in agreement over most of their common range of age and number of trees. At w

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Stajic, Branko, Ksenija Vukic, Zivan Janjatovic, and Marko Kazimirovic. "Growing space efficiency of European ash (Fraxinus excelsior L.) in the region of Majdanpecka domena." Bulletin of the Faculty of Forestry, no. 115 (2017): 99–126. http://dx.doi.org/10.2298/gsf1715099s.

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This paper reports on the size and completeness of tree crowns and their effectiveness for the production of wood volumes in the case of a pure 35-years European ash stand. Starting from the interaction between the elements of the crowns structure and elements of the tree and stand growth the economical use of growing space was perceived and the optimal stand state was also defined, what were the main objectives of this paper. The trees with slender crowns, despite their better ratio of the surface area/volume of the crown, produced lower wood volume (undeveloped crowns). On the other hand, wh

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15

Štícha, Václav, Ram Prasad Sharma, Zdeněk Vacek, Stanislav Vacek, and Ondřej Nuhlíček. "Timber and Branch Volume Prediction: Effects of Stand and Site Characteristics on Dendromass and Timber-To-Branch Volume Ratio of Norway Spruce in Managed Forests." Forests 10, no. 2 (2019): 144. http://dx.doi.org/10.3390/f10020144.

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The objective of this study was to develop the models that predict both timber and branch volumes of Norway spruce (Picea abies L. Karst.), the most abundant tree species in Europe, and determine the relationships among timber and branch volumes and various site and stand characteristics. The data used in this study come from 76 sample plots in the different stands and site conditions across Norway spruce forests in the Czech Republic. Timber volume was determined by Huber’s formula and branch volume (logging residue) was determined by drying and weighing of 10 samples from the 10-chipped tree

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Kollenberg, Cassandra L., and Kevin L. O'Hara. "Leaf area and tree increment dynamics of even-aged and multiaged lodgepole pine stands in Montana." Canadian Journal of Forest Research 29, no. 6 (1999): 687–95. http://dx.doi.org/10.1139/x99-039.

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Age structure and distribution of leaf area index (LAI) of even and multiaged lodgepole pine (Pinus contorta var. latifolia Engelm.) stands were examined on three study areas in western and central Montana. Projected leaf area was determined based on a relationship with sapwood cross-sectional area at breast height. Stand structure and LAI varied considerably between individual plots. LAI and stand stem volume increment were significantly higher in multiaged than even-aged stands with the exception of one study area, which had higher volume increment in even-aged stands. Older cohorts and high

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Vuckovic, Milivoj, and Branko Stajic. "Wood volume distribution as an indicatorof stand homogeneity." Bulletin of the Faculty of Forestry, no. 94 (2006): 101–8. http://dx.doi.org/10.2298/gsf0694101v.

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The results of stand homogeneity definition are analyzed based on the percentage ratio of the distribution of tree number and the distribution of volume per diameter degrees. Homogeneity is defined based on homogeneity index (H) and Lorenz?s curve. Homogeneous stand is the hypothetical stand whose trees have equal volumes. Real stands, depending on their silvicultural form and treatment, as well as the development stage, are more or less distant from the absolutely homogenous state. The effect of the diameter degree width on the accuracy of homogeneity index calculation was determined and the

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18

Jaworski, A., and Zb KoŁodziej. "Natural loss of trees, recruitment and increment in stands of primeval character in selected areas of the Bieszczady Mountains National Park (South-Eastern Poland)." Journal of Forest Science 48, No. 4 (2019): 141–49. http://dx.doi.org/10.17221/11867-jfs.

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In three investigated stands the highest increment (8.8 m3/ha per year, i.e. 1.5% of the actual stand volume, measured at the end of the control period) was reached by Jawornik I stand in the initial period of the growing up stage, and Tworylczyk stand in the advanced growing up stage (7.4 m3/ha per year, i.e. 1.2% of the actual stand volume). Jawornik II stand, in the optimum stage, the aging phase, had the lowest increment (3.9 m3/ha per year, i.e. 0.7% of the actual stand volume). The process of a natural volume loss was the most intensive in Tworylczyk stand (7.6 m3/ha per year), a little

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Zeide, Boris. "Optimal stand density: a solution." Canadian Journal of Forest Research 34, no. 4 (2004): 846–54. http://dx.doi.org/10.1139/x03-258.

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The search for a stand density that maximizes total volume growth has continued since the beginning of forestry without producing a definite answer. One of the reasons is that the effect of density on growth is not always separated from those of tree size and age. Such a separation is not easy when the relationship between density and growth is expressed as a graph (Langsaeter's curve). This study develops a simple model that accounts for each main growth predictor individually. It allows one to calculate the density that maximizes volume growth at any given moment (current annual increment of

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20

Ward, Jeffrey S., George R. Stephens, and Francis J. Ferrandino. "Influence of Cutting Method on Stand Growth in Sawtimber Oak Stands." Northern Journal of Applied Forestry 22, no. 1 (2005): 59–67. http://dx.doi.org/10.1093/njaf/22.1.59.

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Abstract Many upland oak forests in the eastern United States are approaching economic and biological maturity. A study was established in 1981–1984 in three central Connecticut forests to examine the effects of six distinct cutting methods (shelterwood, diameter limit, multiaged crop tree, high grading, silvicultural clearcut, forest preserve) on stand growth and dynamics in sawtimber oak stands. Board-foot volumes (International 1/4) averaged 8.4 mbf/ac before the initial harvest. Sixty-nine percent of sawtimber trees had butt-log grades of 2 or better. Volume growth was significantly lower

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Hökkä, Hannu, Jaakko Repola, and Jukka Laine. "Quantifying the interrelationship between tree stand growth rate and water table level in drained peatland sites within Central Finland." Canadian Journal of Forest Research 38, no. 7 (2008): 1775–83. http://dx.doi.org/10.1139/x08-028.

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The quantitative relationship between stand growth rate and water table level in peatland forest sites has not been fully ascertained in the literature. In this study, we investigated this relationship by means of a bivariate regression model. Tree and stand attributes, including volume and past 5-year volume growth as well as median water table depth (WTM) during the 1984 growing season, were observed in 69 Scots pine ( Pinus sylvestris L.) sample stands with three subplots established in each stand. All stands were located in deep-peated, moderately rich to poor organic soil sites in Central

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Vincent, Manon, Cornelia Krause, and Ahmed Koubaa. "Influence of Stem Taper on the Yield of Black Spruce Stands and Trees Following Commercial Thinning." Forests 10, no. 11 (2019): 1024. http://dx.doi.org/10.3390/f10111024.

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In this work, we examine the effects of commercial thinning on stand volume and individual stem form in nine naturally regenerated black spruce (Picea mariana (Mill.) B.S.P.) stands. We compared these study sites with controls in the commercial boreal forest of northern Quebec, Canada. At stand level, dendrochronological data provided insight into changes in stand volume ten years after thinning. Analysis of a subsample of six individual trees from each commercially thinned stand and three individual trees from the controls illustrated the role of thinning on stem shape development. Although a

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Roessiger, Joerg, Ladislav Kulla, and Maroš Sedliak. "A high proportion of norway spruce in mixed stands increases probability of stand failure." Central European Forestry Journal 66, no. 4 (2020): 218–26. http://dx.doi.org/10.2478/forj-2020-0017.

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Abstract The decline of pure spruce forests in the Beskydy Mountains in the Czech Republic and Slovakia is mainly driven by bark beetle attacks and storm events. Salvage-harvest records based on timber volume on the forest-stand level document the extent of stand failure processed by salvage logging. On the basis of these records, the stand failure proportion was expressed as the proportion of timber volume processed by salvage harvest divided by the standing timber volume over a period of 10 years (sf). Two null hypotheses to be tested are that sf is not influenced by (H1) the size of trees e

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Šēnhofa, Silva, Ieva Jaunslaviete, Guntars Šņepsts, Jurģis Jansons, Līga Liepa, and Āris Jansons. "Deadwood Characteristics in Mature and Old-Growth Birch Stands and Their Implications for Carbon Storage." Forests 11, no. 5 (2020): 536. http://dx.doi.org/10.3390/f11050536.

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As one of the most abundant tree species in the hemiboreal zone, birch is important from both commercial and biodiversity perspectives. While old-growth deciduous stands are important for biodiversity conservation with an emphasis on deadwood availability, the role that deadwood in these stands plays in carbon sequestration remains unclear. We studied mature (71–110 years old) and old-growth (121–150 years old) birch stands on fertile mineral soils. The marginal mean deadwood volume was 43.5 ± 6.4 m3 ha−1 in all mature stands, 51.3 ± 7.1 m3 ha−1 in recently unmanaged mature stands, and 54.4 ±

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Pitt, Douglas G., Milo Mihajlovich, and Leslie M. Proudfoot. "Juvenile stand responses and potential outcomes of conifer release efforts on Alberta's spruceaspen mixedwood sites." Forestry Chronicle 80, no. 5 (2004): 583–97. http://dx.doi.org/10.5558/tfc80583-5.

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Twelve Alberta forest regeneration blocks, situated on representative white spruce (Picea glauca (Moench) Voss) - trembling aspen (Populus tremuloides Michx.) boreal mixedwood sites, planted to white spruce, and operationally released with glyphosate herbicide, were surveyed in the fall of 2002. Stand structure and composition were quantified and compared for treated and untreated portions of each block. The Mixedwood Growth Model (MGM, Department of Renewable Resources, University of Alberta) was used to project these stands over a 100-year horizon and to model the outcomes of several additio

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Ikhwan, Muhammad, Emy Sadjati, and Azwin Azwin. "PERBANDINGAN TEKNIK TREE SAMPLING DAN UNIT CONTOH LINGKARAN DALAM MENDUGA POTENSI TEGAKAN HUTAN TANAMAN EKALIPTUS (EUCALYPTUS PELLITA F. MEULL)." Wahana Forestra: Jurnal Kehutanan 12, no. 1 (2017): 29–36. http://dx.doi.org/10.31849/forestra.v12i1.197.

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The forest inventory is basically a data collection activities. This activity is relatively important, because the effect on further activities. Hence the data collected must have a high enough accuracy. A way of determining the sampling unit is considered to be simpler, easier, and faster is the tree sampling method. The purpose of this study was to quantify the potential large stands of eucalyptus in the Forest of eucalyptus plants in the Faculty of Forestry and calculate the relative efficiency of sample unit. The total area is 0.11 ha of eucalyptus stands. Unit examples used are circular,

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Tavankar, Farzam, Aezam Rezaee Kivi, Kambiz Taheri-Abkenari, Angela Lo Monaco, Rachele Venanzi, and Rodolfo Picchio. "Evaluation of Deadwood Characteristics and Carbon Storage under Different Silvicultural Treatments in a Mixed Broadleaves Mountain Forest." Forests 13, no. 2 (2022): 259. http://dx.doi.org/10.3390/f13020259.

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The deadwood (DW) of the forest is in the following two forms: standing (snag) and fallen (log). The DW categories and decay stage are important functional and structural components of forest ecosystems. We used a field-based assessment to quantify how the relative contribution of deadwood to total above-ground carbon stock changes across a silvicultural method and stand altitude gradient in mixed broadleaves stands. The characteristics of DW and carbon stock in selection-cutting managed stands (Sc), shelter-wood managed stands (Sh) and protected stands (Pr) were examined in three altitude ran

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Padari, Allar, Andres Kiviste, Diana Laarmann, and Ahto Kangur. "The model of stand basal area gross growth on the data of the Estonian Network of Forest Research Plots." Forestry Studies 78, no. 1 (2023): 91–142. http://dx.doi.org/10.2478/fsmu-2023-0007.

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Abstract The stand level gross volume increment models are used to estimate the future production of tree stands. Very often, the stand growth and yield in the models used in practice are described by the tree volume increment that includes the diameter growth function with the tree height together with stem taper as the input variables. The currently used function of stand volume increment in Estonia included also stand relative density as an additional input variable. In the current study, we developed a basal area increment function based on the periodic measurement data of the Estonian Net

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Janas, P. S., and D. G. Brand. "Comparative Growth and Development of Planted and Natural Stands of Jack Pine." Forestry Chronicle 64, no. 4 (1988): 320–28. http://dx.doi.org/10.5558/tfc64320-4.

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This study compares growth yield, and stem quality differences at age 21 between plantations spaced at 2.13 × 2.13 m (2204 stems/ha) and 4.27 × 4.27 m (548 stems/ha), and a nearby natural jack pine stand of identical age (initial density of 29 800 stems/ha). Merchantable volume/ha was greatest at the 2.13 m spacing, followed by the less dense plantation and natural stand. Total volume/ha (trees > 1.3 m height) was also greatest in the 2.13 m plantation, followed by the natural stand and the 4.27 m plantation. Individual tree mean merchantable volumes decreased with increasing density. Heigh

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Amateis, Ralph L., and Harold E. Burkhart. "Tree Volume and Taper of Loblolly Pine Varies by Stand Origin." Southern Journal of Applied Forestry 11, no. 4 (1987): 185–89. http://dx.doi.org/10.1093/sjaf/11.4.185.

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Abstract Stem analysis data were used to examine volume, height-dbh, form and taper relationships for loblolly pine (Pinus taeda L.) trees grown in unthinned old-field plantations, cutover-site plantations, and natural stands. Results showed significant differences in volume, height-dbh, tree form and taper relationships for loblolly pine grown in stands from these three origins. Thus, in order to accurately predict total and merchantable volumes as well as upper stem diameters and heights, forest managers should apply separate volume and taper equations for each stand class. South. J. Appl. F

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Conway, Bradley E., Larry A. Leefers, and Deborah G. McCullough. "Yield and financial losses associated with a jack pine budworm outbreak in Michigan and the implications for management." Canadian Journal of Forest Research 29, no. 3 (1999): 382–92. http://dx.doi.org/10.1139/x99-003.

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Stand-level merchantable volume and financial losses resulting from a 1991-1993 jack pine budworm (Choristoneura pinus pinus Freeman) outbreak were quantified for 99 jack pine (Pinus banksiana Lamb.) stands in the Raco Plains area of the Hiawatha National Forest. Associations between standing value loss and stand inventory variables were evaluated. Stands were stratified into management groups based on age, site index, and stocking. Differences in standing value loss among groups were examined. Total standing merchantable volume loss and gross value loss were estimated to be 19 500 m3 and $289

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Brassard, Brian W., Han Y. H. Chen, Jian R. Wang, and Peter N. Duinker. "Effects of time since stand-replacing fire and overstory composition on live-tree structural diversity in the boreal forest of central Canada." Canadian Journal of Forest Research 38, no. 1 (2008): 52–62. http://dx.doi.org/10.1139/x07-125.

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Stand structure diversity is hypothesized (i) to increase with stand development and (ii) to be greater in mixedwood stands than in conifer and broadleaf stands. We examined the effects of time since stand-replacing fire (TSF) and overstory type on stand volume, stand density, and tree-size variability, which is measured using Shannon’s diversity index (H′) and coefficient of variation, in fire-origin boreal forest stands. We sampled 36 stands representing conifer, mixedwood, and broadleaf overstory types, ranging in ages from 72 to 201 years TSF on upland mesic sites in northwestern Ontario,

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Astrup, Rasmus, Mark J. Ducey, Aksel Granhus, Tim Ritter, and Nikolas von Lüpke. "Approaches for estimating stand-level volume using terrestrial laser scanning in a single-scan mode." Canadian Journal of Forest Research 44, no. 6 (2014): 666–76. http://dx.doi.org/10.1139/cjfr-2013-0535.

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The most efficient way to obtain stand inventory data with terrestrial laser systems (TLS) is with the single-scan mode, which involves taking one scan at a single point. With a single-scan setup, there will be a nondetection of trees in a plot and the representation of the individual trees will be incomplete. We explore how stand-level volume estimates, based on the single-scan mode, perform compared with standard inventory estimates. We base our study on 166 plots in 12 mature stands dominated by Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies L. Karst) in southern Norway. Fi

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Karjalainen, Tomi, Lauri Mehtätalo, Petteri Packalen, Terje Gobakken, Erik Næsset, and Matti Maltamo. "Field calibration of merchantable and sawlog volumes in forest inventories based on airborne laser scanning." Canadian Journal of Forest Research 50, no. 12 (2020): 1352–64. http://dx.doi.org/10.1139/cjfr-2020-0033.

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In many countries, airborne laser scanning (ALS) inventories are implemented to produce predictions for stand-level forest attributes. Nevertheless, mature stands are usually field-visited prior to clear-cutting, so some measurements can be conducted on these stands to calibrate the ALS-based predictions. In this paper, we developed a seemingly unrelated multivariate mixed-effects model system that includes component models for basal area, merchantable volume, and sawlog volume for 225 m2 cells. We used ALS data and accurately positioned cut-to-length harvester observations from clear-cut stan

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Jaworski, A., and R. Podlaski. "Processes of loss, recruitment, and increment in stands of a primeval character in selected areas of the Pieniny National Park (southern Poland)." Journal of Forest Science 53, No. 6 (2008): 278–89. http://dx.doi.org/10.17221/2017-jfs.

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Studies were carried out during 1987â1997 in four stands situated in the lower mountain zone, and representing the association <i>Carici-Fagetum abietetosum</i> (sample plots Facimiech and Walusi&oacute;wka) and the community of a transitory character between <i>Dentario glandulosae-Fagetum</i> and <i>Carici-Fagetum</i> (sample plots Gr&oacute;dek and Przelecz Sosn&oacute;w). The greatest volume increment was found in a pure fir (<i>Abies alba</i>) stand of Facimiech (9.4 m<sup>3</sup>/ha/year, i.e. 1.4% of actual stand

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O'Hara, K. L. "Stand structure and growing space efficiency following thinning in an even-aged Douglas-fir stand." Canadian Journal of Forest Research 18, no. 7 (1988): 859–66. http://dx.doi.org/10.1139/x88-132.

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The growth of individual trees from four thinning treatments in a 64-year-old Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) stand was analyzed to determine desirable residual stand structures after thinning. Dominant and codominant trees had the highest individual tree stem volume growth rates over the previous 5 years, and accounted for most stand volume growth in thinned and unthinned stands. Two measures of growing space, crown projection area and sapwood basal area (a surrogate for leaf area), were used to measure how efficiently individual trees used their growing space. Crown classes

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Krstic, Milun. "The proposition of optimal silvicultural-reclamation operations in untended beech stands of mixed origin." Bulletin of the Faculty of Forestry, no. 89 (2004): 155–70. http://dx.doi.org/10.2298/gsf0489155k.

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The state, quality, spontaneous development and silvicultural demands of untended beech stands of mixed origin were studied, the age of trees in the dominant layer is about 75 years. The analysis of stand development through a 17-year period (1986-2003) included the monitoring of the elements of stand structure: Number of trees, basal area, volume, diameter and volume increment, mean stand diameter, structure, mortality and tree removal from the stand, morphological, biological and technical characteristics of trees and biological differentiation of trees. The adequate silvicultural-reclamatio

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DINCĂ, Lucian, Gabriel MURARIU, Cristian M. ENESCU, et al. "Productivity differences between southern and northern slopes of Southern Carpathians (Romania) for Norway spruce, silver fir, birch and black alder." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 48, no. 2 (2020): 1070–84. http://dx.doi.org/10.15835/nbha48211824.

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Forest vegetation across Southern Carpathians is distributed in altitudinal layers. The aim of this study was to highlight the productivity differences between the Southern and Northern slopes of the Southern Carpathians for Norway spruce, silver fir, birch and black alder. Data from 45 forest management plans (46.329 stands from the Southern slopes and 32.787 stands from the Northern slopes) were used. For each stand, the mean diameter, mean height, age, standing volume, current volume increment and production class were assessed. Elementary statistical methods were used to identify the facto

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D'Amato, Anthony W., Stacy J. Troumbly, Michael R. Saunders, Klaus J. Puettmann, and Michael A. Albers. "Growth and Survival of Picea glauca following Thinning of Plantations Affected by Eastern Spruce Budworm." Northern Journal of Applied Forestry 28, no. 2 (2011): 72–78. http://dx.doi.org/10.1093/njaf/28.2.72.

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Abstract The effects of thinning treatments on growth and survivorship of white spruce (Picea glauca [Moench] Voss) plantations affected by recent eastern spruce budworm (SBW) outbreaks were examined over a 5-year period in northern Minnesota. Thinning treatments increased individual tree growth, live crown ratios (LCRs), and survival relative to unthinned stands. Overall, stands affected by SBW had lower rates of volume production than unaffected stands. In addition, individual tree volume growth was greater in thinned SBW-affected stands relative to unthinned SBW-affected stands. Across stan

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Nowak, Christopher A. "Wood volume increment in thinned, 50- to 55-year-old, mixed-species Allegheny hardwoods." Canadian Journal of Forest Research 26, no. 5 (1996): 819–35. http://dx.doi.org/10.1139/x26-091.

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A thinning study in 50- to 55-year-old, even-aged, mixed species Allegheny hardwoods produced highly variable merchantable stemwood volume increment responses. Regression equations relating parameters of stand growth (ingrowth, mortality, survivor growth, net growth, and gross growth) to relative stand density had R2 values ranging from 0.07 to 0.48. When study plots with similar pretreatment species composition were assigned to four groups using cluster analysis, R2 values were increased to 0.94–0.99. There were significant differences in the relationships between relative stand density and g

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Kraszkiewicz, Artur. "Productivity of Black Locust (Robinia pseudoacacia L.) Grown on a Varying Habitats in Southeastern Poland." Forests 12, no. 4 (2021): 470. http://dx.doi.org/10.3390/f12040470.

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This study investigated growth performances of black locust (Robinia pseudoacacia L.) tree species in various soil and agro-climatic conditions in Poland. Implementing of research was based on monoculture black locust stands in which it was possible to carry out dendrometric tests allowing us to learn about their volume. These stands were located on marginal soils. In the sample plots selected for the study, the parameters of stands (main and secondary) were determined, such as number and social structure of trees, average tree height, average diameter at breast height (DBH), and volume. The v

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Wilson, Duncan S., Robert S. Seymour, and Douglas A. Maguire. "Density Management Diagram for Northeastern Red Spruce and Balsam Fir Forests." Northern Journal of Applied Forestry 16, no. 1 (1999): 48–56. http://dx.doi.org/10.1093/njaf/16.1.48.

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Abstract A stand-density management diagram is presented for use in northeastern red spruce and balsam fir forests. The diagram was derived from an extensive archived data set collected during the 1970s from fully stocked stands throughout northern Maine and a more recent study of precommercially thinned stands. The negative exponential relationship between mean stemwood volume per tree and stand density, commonly known as the "self-thinning rule, "was formulated to define a biological maximum stand density. The maximum size-density equation can be used to calculate the relative density of any

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Špulák, Ondřej, Jiří Souček, and Jakub Černý. "Do stand structure and admixture of tree species affect Scots pine aboveground biomass production and stability on its natural site?" Journal of Forest Science 64, No. 11 (2018): 486–95. http://dx.doi.org/10.17221/117/2018-jfs.

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The paper analyses stand structure and production on two experimental forest stand series of mature pure and mixed Scots pine stands, growing on natural Scots pine sites in the Czech Republic. Sessile oak was the main admixed species. In mixed stands, Scots pine constituted the dominant level of the stand, admixed species grew mostly as subdominants. Admixture increased stand densities and aboveground biomass production compared to pure stands. Sessile oak with the 20–30% number share within the Scots pine stand led to an increase of the Scots pine tree dimensions and mean stem merchantable wo

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Bankovic, Stanisa, Milan Medarevic, and Damjan Pantic. "Regression models of volume increment percentage in the Most represented stands of coniferous tree species in Serbia." Bulletin of the Faculty of Forestry, no. 85 (2002): 25–35. http://dx.doi.org/10.2298/gsf0285025b.

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Considering the great significance of volume increment in forestry, it is understandable that there are numerous methods of its assessment. However, all these methods have some disadvantages, either the accuracy of the obtained results, too large scope of works of forest inventory (economicity), or the restriction only to stands of certain silvicultural type. To make the method of stand volume increment more economic and simplified, we defined regression models for volume increment percentage assessment in fir, spruce, Austrian pine and Scots pine stands in Serbia. Empirical data were fitted b

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Légaré, Sonia, David Paré, and Yves Bergeron. "The responses of black spruce growth to an increased proportion of aspen in mixed stands." Canadian Journal of Forest Research 34, no. 2 (2004): 405–16. http://dx.doi.org/10.1139/x03-251.

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In the southeastern boreal forest of Canada, the presence of mixed stands of black spruce (Picea mariana (Mill.) BSP) and trembling aspen (Populus tremuloides Michx.) growing in similar abiotic conditions offers the opportunity to study the influence of aspen on stand volume and spruce growth. A regression analysis performed on field data from the ministère des Ressources naturelles du Québec showed a significant relationship between the relative basal area of aspen (aspen relative basal area was determined by the ratio of aspen basal area to total basal area of the stand) and the total stand

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Ikhwan, Muhammad, Emy Sadjati, and Enny Insusanty. "PENDUGAAN POTENSI TEGAKAN EKALIPTUS (Eucalyptus Pellita F. Meull) MENGGUNAKAN METODE TREE SAMPLING DAN CIRCULAR PLOT." Wahana Forestra: Jurnal Kehutanan 12, no. 2 (2017): 41–48. http://dx.doi.org/10.31849/forestra.v12i2.220.

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The forest inventory is basically a data collection activities. This activity is relatively important, because the effect on further activities. Hence the data collected must have a high enough accuracy. A way of determining the sampling unit is considered to be simpler, easier, and faster is the tree sampl ing method. The purpose of this study was to quantify the potential large stands of eucalyptus in the Forest of eucalyptus plants in the Faculty of Forestry and calculate the relative efficiency of sample unit. The total area is 0.11 ha of eucalyptus stands. Unit examples used are circular,

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Oliver, William W. "Ten-Year Growth Response of a California Red and White Fir Sawtimber Stand to Several Thinning Intensities." Western Journal of Applied Forestry 3, no. 2 (1988): 41–43. http://dx.doi.org/10.1093/wjaf/3.2.41.

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Abstract A 100-year-old stand of California red fir (Abies magnifica) and California white fir (Abies concolor) of near normal density was commercially thinned from below to 6 basal area stand densities. Growth was analyzed after 10 years. Periodic annual increments (PAI) of diameter, height, total volume, and gross basal area were correlated with reserve stand basal area, but merchantable volume and net basal area were not. Mortality resulted in considerable variation in net PAI. As much as 50% of the stand basal area was removed with negligible loss in total net volume production. When econo

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Siipilehto, Jouni, Helena M. Henttonen, Matti Katila, and Harri Mäkinen. "Using Multi-Source National Forest Inventory Data for the Prediction of Tree Lists of Individual Stands for Long-Term Simulation." Remote Sensing 16, no. 14 (2024): 2513. http://dx.doi.org/10.3390/rs16142513.

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Forest resource maps and small area estimates have been produced by combining national forest inventory (NFI) field plot data, multispectral satellite images and numerical map data. We evaluated k-nearest neighbors (k-NN) method-based predictions of forest variables for pixels in predicting tree lists of individual stands, including tree diameters at breast height and tree heights and then calculated stem volumes and tree species proportions. We compared alternative parameters (k-NN) using k of either 1 or 5 according to preliminary plot-level study and applying either measured trees (1-NN_tre

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Đorem, Todor, Boban Miletić, Bratislav Matović, et al. "Impact of orography and stand canopy on stand volume in pure uneven-aged beech stands." Topola, no. 209 (2022): 13–23. http://dx.doi.org/10.5937/topola2209013d.

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European beech is one of the most important and most common tree species in Europe, which have extremely wide amplitude in sense of horizontal and vertical distribution. In Serbia and Bosnia and Herzegovina European beech (Fagus sylvatica L.) represents one of the most important tree species from an economic and ecological point of view, because it's constituting significant areas of highly productive pure and mixed forests. The main goal of this research is to determine the influence of orography (slope, aspect, elevation, and spatial distribution-climate zone) and one stand characteristic (c

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Lilleleht, Ando. "Seoseid puistu juurdekasvu ja koosseisu vahel hariliku männi (Pinus sylvestris L.) enamusega segametsades / Relationships between stand volume growth and composition in mixed stands dominated by Scots Pine (Pinus sylvestris L.)." Forestry Studies 54, no. 1 (2011): 18–27. http://dx.doi.org/10.2478/v10132-011-0092-8.

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Abstract. Relationships between the volume growth of mixed stands and their species composition were analyzed in order to examine the so-called “mixture effect” on stand productivity. The influence of co-species was studied using multiple linear regression analysis. Stand level basal area and height growth models were constructed in order to find out which stand characteristics can be used to describe mixture-effects. The study material originates from the Estonian network of permanent forest growth plots, only stands consisting of mainly (≥ 50% of volume) Scots Pine with Norway spruce and/or

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