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Articles de revues sur le sujet « Mixed-pine »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 3 février 2022

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1

Porté, Annabel, Frédéric Huard, and Philippe Dreyfus. "Microclimate beneath pine plantation, semi-mature pine plantation and mixed broadleaved-pine forest." Agricultural and Forest Meteorology 126, no. 1-2 (2004): 175–82. http://dx.doi.org/10.1016/j.agrformet.2004.06.001.

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Tkach, Viktor, Oksana Tarnopilska, Oleksiy Kobets, et al. "Harmfulness of root rot in the stands planted on formerly arable land and clear-cuts after annosum-infected pine forests in Chernihiv Polissya physiographic region of Ukraine." Central European Forestry Journal 66, no. 1 (2020): 37–48. http://dx.doi.org/10.2478/forj-2019-0025.

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AbstractThe study was conducted in pure Scots pine (Pinus sylvestris L.) forests and mixed forests of Scots pine and silver birch (Betula pendula Roth.) within the Chernihiv Polissya physiographic region of Ukraine. The aim of the study was a comparative analysis of forest mensuration characteristics and health condition of pine and mixed pine-birch stands planted on formerly arable lands and cutover areas after pine stands infected by annosum root rot. It was found that in pine stands planted on formerly arable land, the average diameter of living trees in the root rot disease focus was 1–6%

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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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Levin, S., and Aleksey Chernodubov. "ASPECTS OF THE GROWTH OF CRIMEAN PINE INTRODUCED IN HERB-GRASS AND MIXED-GRASS STEPPE ZONE OF VOLGA-DON DISTRICT OF THE SOUTH OF THE RUSSIAN PLAIN." Actual directions of scientific researches of the XXI century: theory and practice 8, no. 1 (2020): 73–79. http://dx.doi.org/10.34220/2308-8877-2020-8-1-73-79.

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Crimean pine (Pinus nigra subsp.pallasiana Lamb.) better than other introduced tree species fits the environmental conditions of the studied region, as it is highly resistant to various pathologies and can be used to form complex (multilayered) uneven-aged multispecies stands. The significant age of the studied stands (110 and 118 years old) provides a good indication of this fact, as well as allows us to make a judgement on the features of growth and development of Crimean pine mixed with Scots pine. It should be noted that when Crimean pine is mixed with Scots pine its average trunk volume i

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Longpré, Marie-Hélène, Yves Bergeron, David Paré, and Martin Béland. "Effect of companion species on the growth of jack pine (Pinusbanksiana)." Canadian Journal of Forest Research 24, no. 9 (1994): 1846–53. http://dx.doi.org/10.1139/x94-238.

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The growth and yield of jack pine (Pinusbanksiana Lamb.) was studied in even-aged stands of three types: pure jack pine, jack pine mixed with paper birch (Betulapapyrifera Marsh.), and jack pine mixed with trembling aspen (Populustremuloides Michx.) growing on moderately well-drained glaciolacustrine clay soils in the southern tip of the Clay Belt of northwestern Quebec. Site index, average DBH, and average height of jack pine, and the availability of nutrients in the forest floor were compared among stand types. No differences were found in the height growth of jack pine among stand types. Ho

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Baker, William L. "Variable Forest Structure and Fire Reconstructed Across Historical Ponderosa Pine and Mixed Conifer Landscapes of the San Juan Mountains, Colorado." Land 9, no. 1 (2019): 3. http://dx.doi.org/10.3390/land9010003.

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Late-1800s land surveys were used to reconstruct historical forest structure and fire over more than 235,000 ha in ponderosa pine and mixed conifer landscapes of the San Juan Mountains, Colorado, to further understand differences among regional mountain ranges and help guide landscape-scale restoration and management. Historically, fire-resistant ponderosa pine forests with low tree density and relatively frequent fire, the most restorable forests, covered only the lower 15%–24% of the study area. The other 76%–85% had dominance by mixed- to high-severity fires. Both ponderosa pine and dry mix

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Riofrío, José, Miren del Río, Douglas Maguire, and Felipe Bravo. "Species Mixing Effects on Height–Diameter and Basal Area Increment Models for Scots Pine and Maritime Pine." Forests 10, no. 3 (2019): 249. http://dx.doi.org/10.3390/f10030249.

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Models that incorporate known species-mixing effects on tree growth are essential tools to properly design silvicultural guidelines for mixed-species stands. Here, we developed generalized height–diameter (h-d) and basal area growth models for mixed stands of two main forest species in Spain: Scots pine (Pinus sylvestris L.) and Maritime pine (Pinus pinaster Ait.). Mixed-effects models were fitted from plot measurement and tree rings data from 726 Scots pine and 693 Maritime pine trees from mixed and pure stands in the Northern Iberian Range in Spain, with the primary objective of representing

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Willis, Gordon, Tanger, Blazier, Self, and Brodbeck. "Managing Mixed Stands: Reassessing a Forgotten Stand Type in the Southeastern United States." Forests 10, no. 9 (2019): 751. http://dx.doi.org/10.3390/f10090751.

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Forestry in the Southeastern United States has long focused on converting natural stands into pine plantations or managing exclusively for hardwoods. Little consideration has been given to managing stands containing pine and hardwood mixtures, as these stands were considered inferior in terms of productivity and/or quality. Recent declines in small-diameter softwood markets and logging workforce have, however, begun to stress the traditional pine production model in some locations, raising interest in management alternatives. Here, we provide biological, economic, and sociocultural rationale f

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Данилов, Dmitriy Danilov, Смирнов, and A. Smirnov. "Effect of stand structure on density of pine and spruce wood in myrtillus forest type." Forestry Engineering Journal 4, no. 4 (2015): 13–20. http://dx.doi.org/10.12737/8434.

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Mixed stands of spruce and pine of myrtillus y forest types occupy large areas of the forest fund of the Leningrad region. For the theory and practice of forestry it is important to know the impact of plantations on the density of wood in bunk mixed spruce-pine stands. In mixed stands of pine and spruce disks and cores of wood species were selected from the model tree to determine the basic density by the method of maximum water capacity. The study of basic wood density of pine and spruce in the coniferous bunk stands revealed that its rates are higher for both sp

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Elena M, Runova, Garus Ivan A, and Serkov Denis V. "Growth and formation patterns of pine-larch saplings in conditions of Eastern Siberia." Journal of Forest Science 64, No. 9 (2018): 387–93. http://dx.doi.org/10.17221/4/2018-jfs.

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Researches and generalizations of information on basic patterns of formation, growth, and structure of Irkutsk region forest stands and plantations enabled to study dynamics of formation and productivity of mixed pine forests, being naturally developed under various economic impacts. Such parameters as diameter-, height-, and volume-wise pine and larch increment in mixed forest stands were studied. The obtained results were accurate due to a wealth of experimental material, statistical and mathematical processing using MS Excel application software, graphic methods of processing the materials.

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Gutsch, M., P. Lasch, F. Suckow, and C. Reyer. "Management of mixed oak-pine forests under climate." Forest Systems 20, no. 3 (2011): 453. http://dx.doi.org/10.5424/fs/20112003-11073.

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Sharma, K. D., and J. F. Correia. "Upland erosion in a mixed pine forest ecosystem." Journal of Earth System Science 98, no. 2 (1989): 133–45. http://dx.doi.org/10.1007/bf02863239.

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Nothdurft, Arne, and Markus Engel. "Climate sensitivity and resistance under pure- and mixed-stand scenarios in Lower Austria evaluated with distributed lag models and penalized regression splines for tree-ring time series." European Journal of Forest Research 139, no. 2 (2019): 189–211. http://dx.doi.org/10.1007/s10342-019-01234-x.

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Abstract Penalized regression splines and distributed lag models were used to evaluate the effects of species mixing on productivity and climate-related resistance via tree-ring width measurements from sample cores. Data were collected in Lower Austria from sample plots arranged in a triplet design. Triplets were established for sessile oak [Quercus petraea (Matt.) Liebl.] and Scots pine (Pinus sylvestris L.), European beech (Fagus sylvatica L.) and Norway spruce [Picea abies (L.) H. Karst.], and European beech and European larch (Larix decidua Mill.). Mixing shortened the temporal range of ti

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Rohiyan, Muhammad, Samsul Bakri, and Susni Herwanti. "Keanekaragaman Jenis Burung Di Hutan Pinus Dan Hutan Campuran Muarasipongi Kabupaten Mandailing Natal Sumatera Utara." Jurnal Sylva Lestari 2, no. 2 (2014): 89. http://dx.doi.org/10.23960/jsl2289-98.

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Muarasipongi pine and mixed forests contribute greatly to the biodiversity wildlife. The study of bird species diversity in pine and mixed forests Muarasipongi, to support the preservation and protection efforts on biodiversity especially bird species. This research was conducted on August 2013 by the point count method on Muarasipongi pine and mixed forest then mark and record all the birds over a predetermined period of time before moving to the next point. The data obtained were analyzed and then used to calculate the index of species diversity equality, and community similarity were determ

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Primicia, Irantzu, Rubén Artázcoz, Juan-Bosco Imbert, Fernando Puertas, María-del-Carmen Traver, and Federico-José Castillo. "Influence of thinning intensity and canopy type on Scots pine stand and growth dynamics in a mixed managed forest." Forest Systems 25, no. 2 (2016): e057. http://dx.doi.org/10.5424/fs/2016252-07317.

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Aim of the study: We analysed the effects of thinning intensity and canopy type on Scots pine growth and stand dynamics in a mixed Scots pine-beech forest. Area of the study: Western Pyrenees. Material and methods: Three thinning intensities were applied in 1999 (0, 20 and 30% basal area removed) and 2009 (0, 20 and 40%) on 9 plots. Within each plot, pure pine and mixed pine-beech patches are distinguished. All pine trees were inventoried in 1999, 2009 and 2014. The effects of treatments on the tree and stand structure variables (density, basal area, stand and tree volume), on the periodic ann

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16

Lopez-Lope, Miguel A., R. M. Reich, C. Aguirre-Br, and A. Velazquez-. "Pine Growth and Nutrient Status as Related to Pine/Alder Ratio in Mixed Stands." Journal of Biological Sciences 9, no. 7 (2009): 637–47. http://dx.doi.org/10.3923/jbs.2009.637.647.

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17

Manral, Vijyeta, Kirtika Padalia, and Himani Karki. "Plant diversity and regeneration potential of three different forests of Central Himalaya." Current World Environment 13, no. 1 (2018): 113–23. http://dx.doi.org/10.12944/cwe.13.1.11.

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Plant diversity is essential for human survival and economic well-being and also for the ecosystem function and stability. The total number of accessible seedlings and saplings in a forest community indicates the regeneration status/potential of a species or a forest. In this study, composition, diversity and population structure of three different forests (Banj oak, Chir-pine and Mixed oak-pine) was assessed around Nainital town of Uttarakhand state. Species richness and diversity were maximum in Banj-oak forest (9 species and 1.970, respectively) and minimum in Chir-pine forest (4 species an

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18

Ilintsev, Aleksey, Darya Soldatova, Alexander Bogdanov, Sergey Koptev, and Sergey Tretyakov. "Growth and structure of pre-mature mixed stands of Scots pine created by direct seeding in the boreal zone." Journal of Forest Science 67, No. 1 (2021): 21–35. http://dx.doi.org/10.17221/70/2020-jfs.

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The purpose of the research is to analyse the successful creation of an artificial pine forest by seeding and develop recommendations for the guaranteed reproduction of pine stands in Northern European Russia. In recent decades, there has been a steady decline in the share of pine stands and their replacement with low-value and low-yielding tree species. We surveyed 12 permanent sample plots that were laid out in various variants of forest crops. The taxation parameters were obtained by a standard analysis of the experimental data. The evaluation parameters of the stands vary within the follow

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Jactel, H., P. Menassieu, F. Vetillard, A. Gaulier, J. C. Samalens, and E. G. Brockerhoff. "Tree species diversity reduces the invasibility of maritime pine stands by the bast scale, Matsucoccus feytaudi (Homoptera: Margarodidae)." Canadian Journal of Forest Research 36, no. 2 (2006): 314–23. http://dx.doi.org/10.1139/x05-251.

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Species-rich plant communities may be more resistant to invasive herbivores because of reduced host-plant accessibility and increased natural enemy diversity and abundance. We tested these hypotheses in Corsica, a Mediterranean island recently invaded by the maritime pine bast scale, Matsucoccus feytaudi Duc., which causes widespread tree mortality in Pinus pinaster Ait. The endemic Matsucoccus pini Green infests Corsican pine, Pinus nigra laricio Poiret, where it is controlled by the native predatory bug Elatophilus nigricornis Zetterstedt. As revealed by kairomone trapping, E. nigricornis wa

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20

Meshkova, Valentyna, and Ivan Bobrov. "Parameters of Pinus sylvestris health condition and Ips acuminatus population in pure and mixed stands of Sumy region." Наукові праці Лісівничої академії наук України, no. 20 (June 4, 2020): 131–40. http://dx.doi.org/10.15421/412012.

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Outbreaks of bark beetles have increased in recent years in various regions. Pine engraver beetle (Ips acuminatus (Gyllenhal, 1827); Coleoptera: Curculionidae: Scolytinae) is most common in the pine forests of many European countries. Research on its biology and spread carried out in different natural conditions, phases of pest outbreak and considered various parameters to characterize the population of the pest and forest health condition. The aim of the research was to compare the health condition of Scots pine stands and population parameters of I. acuminatus in its two generations in

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Izhaki, I., A. Haim, and O. Zohar. "Rodent Populations Recovering from Fire in an East Mediterranean Woodland*." Water Science and Technology 27, no. 7-8 (1993): 539–45. http://dx.doi.org/10.2166/wst.1993.0593.

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Fire in woodlands causes a dramatic decrease in rodent populations. The aim of this study was to detect rodent succession in three different management regimes of a post-fire habitat on Mount Carmel: (1) a control area of mixed woodlands of burnt pine and oak; (2) a mixed burnt woodland in which the burnt pine trees were cut and left in situ; and (3) a mixed burnt woodland in which burnt pines were cut and removed from the plot. Two plots in an unburnt mixed woodland were used as controls. The first invader species observed in the post-fire habitats were Mus macedonicus, which was the most abu

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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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Huo, Xueying, Dexiang Wang, Deye Bing, et al. "Appropriate Removal of Forest Litter is Beneficial to Pinus tabuliformis Carr. Regeneration in a Pine and Oak Mixed Forest in the Qinling Mountains, China." Forests 10, no. 9 (2019): 735. http://dx.doi.org/10.3390/f10090735.

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Research Highlights: Natural regeneration is important in pine–oak mixed forests (Pinus armandii Franch., Pinus tabuliformis Carr., and Quercus aliena Bl. var. acuteserrata Maxim.ex Wenz.), but allelopathy as a limiting factor has not been studied. Our research provides insights into allelopathy in pine–oak mixed forest litter. Background and Objectives: Allelopathy among tree species occupying the same ecological niche in mixed forests may adversely affect regeneration. We studied allelopathy in pine and oak forest litter to determine the effect on regeneration, whether it is offset by adding

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Данилов, Dmitriy Danilov, Беляева, et al. "THE IMPACT OF SHARE PARTICIPATION OF PINE AND SPRUCE ON INVENTORY INDICES OF MIXED FOREST STANDS." Forestry Engineering Journal 7, no. 1 (2017): 49–58. http://dx.doi.org/10.12737/25192.

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The influence of composition on the dynamics of inventory indices of the mixed modal forest stands is considered: ridges with the groups of forest types of middle subzone of taiga in the territory of the Leningrad region, for 60 year period. The course of growth of pine and spruce in the mixed stand is due to the composition of the stand, which affects the entire life cycle of its development. Analysis of forest inventory data at the test plots has shown that the median line for the average height and diameter has the distinction of growth from tabular reference data. Differences in the dynami

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Jetté, Hélène, and Robert J. Mott. "Vegetation and Climate of Maritime Canada 6000 Years BP: A Synthesis." Géographie physique et Quaternaire 49, no. 1 (2007): 141–62. http://dx.doi.org/10.7202/033034ar.

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ABSTRACT Environmental conditions (vegetation and climate) of Maritime Canada are reconstructed as a regional contribution to a national synthesis on the paleoenvironment of Canada 6000 yr BP. Ten new sites, including three complete sequences and seven short sequences bracketing the 6 ka period, are added to the existing pollen dataset for this region. The vegetation prevalent 6000 yr BP in New Brunswick was a mixed coniferous-deciduous forest with pine, mostly white pine (Pinus strobus) in the northwest, and a mixed coniferous-deciduous forest with hemlock (Tsuga canadensis) in the south and

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Varga, Pàl, Han YH Chen, and Karel Klinka. "Tree-size diversity between single- and mixed-species stands in three forest types in western Canada." Canadian Journal of Forest Research 35, no. 3 (2005): 593–601. http://dx.doi.org/10.1139/x04-193.

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Mixed-species stands are hypothesized to be more structurally diverse because of inherent differences in growth rates between tree species. We investigated three combinations of even-aged, single- and mixed-species coniferous stands in western Canada: (i) shade-tolerant western hemlock (Tsuga heterophylla (Raf.) Sarg.) and western redcedar (Thuja plicata (Donn ex D. Don) Spach), (ii) shade-intolerant lodgepole pine (Pinus contorta Dougl. ex Loud.) and western larch (Larix occidentalis Nutt.), and (iii) shade-intolerant lodgepole pine and shade-tolerant black spruce (Picea mariana (Mill.) BSP).

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ÇATAL, Yılmaz, Babür GÜZEL, and Musa GENÇ. "Determination of Free-to-Grow Stages for Natural Mixed Brutian Pine-Anatolian Black Pine Stands." TURKISH JOURNAL OF FOREST SCIENCE 1, no. 2 (2017): 145–54. http://dx.doi.org/10.32328/turkjforsci.331708.

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Długosiewicz, Justyna, Stanisław Zając, and Emilia Wysocka-Fijorek. "Evaluation of the natural and artificial regeneration of Scots pine Pinus sylvestris L. stands in the Forest District Nowa Dęba." Forest Research Papers 80, no. 2 (2019): 105–16. http://dx.doi.org/10.2478/frp-2019-0009.

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Abstract The main purpose of this article was to highlight the potential for enhancing positive silvicultural effects and their dependency on the management method in Scots pine Pinus sylvestris L. stands. We therefore assessed the impact of natural and artificial regeneration on vitality and health, compaction, surface coverage and seedlings height. Another important goal was to assess the severity of damage in the selected forest sites. A comparative analysis was carried out based on results from field work conducted in the autumn 2010 in the Forest District Nowa Dęba. As part of this field

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Russo, Diego, Pasquale A. Marziliano, Giorgio Macrì, Giuseppe Zimbalatti, Roberto Tognetti, and Fabio Lombardi. "Tree Growth and Wood Quality in Pure Vs. Mixed-Species Stands of European Beech and Calabrian Pine in Mediterranean Mountain Forests." Forests 11, no. 1 (2019): 6. http://dx.doi.org/10.3390/f11010006.

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Mixed-species forests may deliver more forest functions and services than monocultures, as being considered more resistant to disturbances than pure stands. However, information on wood quality in mixed-species vs. corresponding pure forests is poor. In this study, nine plots grouped into three triplets of pure and mixed-species stands of European beech and Calabrian pine (three dominated by European beech, three dominated by Calabrian pine, and three mixed-species plots) were analysed. We evaluated tree growth and wood quality through dendrochronological approaches and non-destructive technol

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Drössler, Lars, Eric Agestam, Kamil Bielak, et al. "Over- and Underyielding in Time and Space in Experiments with Mixed Stands of Scots Pine and Norway Spruce." Forests 9, no. 8 (2018): 495. http://dx.doi.org/10.3390/f9080495.

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Pine-spruce forests are one of the commonest mixed forest types in Europe and both tree species are very important for wood supply. This study summarized nine European studies with Scots pine and Norway spruce where a mixed-species stand and both monocultures were located in an experimental set-up. Overyielding (where growth of a mixed stand was greater than the average of both monocultures) was relatively common and often ranged between 0% and 30%, but could also be negative at individual study sites. Each individual site demonstrated consistent patterns of the mixing effect over different me

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Błońska, Ewa, Jarosław Lasota, Maciej Zwydak, and Wojciech Piaszczyk. "Stand mixing effect on enzyme activity and other soil properties." Soil Science Annual 67, no. 4 (2016): 173–78. http://dx.doi.org/10.1515/ssa-2016-0021.

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Abstract In this research study, enzyme activity was used to assess differences occurring in soils as a result of the different tree species influence. The aim of the study was to assess the effects of Scots pine (Pinus sylvestris), sessile oak (Quercus petraea) and mixed-species stands on the enzymatic activity and chemical characteristics of soil. Sample plots were located in central Poland, in the Przedbórz forest district (51.09.59.50°N, 20.00.24.25°E). The test area was dominated by Brunic Arenosols. 15 research plots were established (5 plots under pine, 5 plots under oak and 5 plots und

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Kowalska, Anna, and Ewa Kołaczkowska. "Regeneration-degeneration processes in the inland dune forests in protected areas of central Poland (Kampinos National Park)." Miscellanea Geographica 19, no. 4 (2015): 56–63. http://dx.doi.org/10.1515/mgrsd-2015-0028.

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Abstract The aim of our study was to quantify the differences in the regeneration-degeneration processes in pine and mixed oak-pine forest habitats in the Kampinos Forest (central Poland). We investigated whether the regeneration rate depends on habitat type, whether there is a relationship between the bilberry (Vaccinium myrtillus) cover and the degree of community deformation, and which habitat type has been most invaded by alien plant species. Our results indicate that the constant loss of pine forest habitats, which has been observed since the 1970s, is continuing. The less deformed commun

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Dziadowiec, Helena. "The decomposition of plant litter fall in an oak-linden-hornbeam forest and an oak-pine mixed forest of the Białowieża National Park." Acta Societatis Botanicorum Poloniae 56, no. 1 (2014): 169–85. http://dx.doi.org/10.5586/asbp.1987.019.

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The decomposition of hornbeam, linden and oak leaves in an oak-linden-hornbeam ,(<em>Tilio-Carpinetum</em>) forst and of pine and spruce needles in an oak-pine mixed forest (<em>Pino-Quercetum typicum</em>) of the Białowieża National Park were studied. The decay of the hornbeam and linden leaves progressed at the same rates, while that of oak leaves was slower. During the first year in the oak-pine mixed forest, the decay of pine needles was more intense than that of spruce needles, then during later periods, the rate of decomposition of spruce needles exceeded that of

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Quiñonez-Barraza, Gerónimo, Dehai Zhao, and Héctor Manuel De los Santos-Posadas. "Compatible Taper and Stem Volume Equations for Five Pine Species in Mixed-Species Forests in Mexico." Forest Science 65, no. 5 (2019): 602–13. http://dx.doi.org/10.1093/forsci/fxz030.

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Abstract Ten systems of compatible taper and outside-bark volume equations derived from upper-height-based volume ratio equations were compared with a used segmented-stem system of compatible taper and volume equations. All the systems were simultaneously fitted to cumulative volume data and taper data for Arizona pine, Aztec pine, Durango pine, Mexican white pine, and Smooth-leaved pine species in naturally regenerated mixed-species forests in Mexico. The systems derived from volume ratio equations performed better than the segmented-stem system for most species. The resultant top systems mig

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McMinn, James W. "Whole-Tree Harvesting Affects Pine Regeneration and Hardwood Competition." Southern Journal of Applied Forestry 9, no. 2 (1985): 81–84. http://dx.doi.org/10.1093/sjaf/9.2.81.

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Abstract Mixed upland hardwood-pine stands of low quality in the Upper Piedmont of Georgia were whole-tree harvested to 1-inch and 4-inch diameter limits in both winter and summer. Natural pine regeneration and hardwood sprouting were observed two growing seasons after harvesting. Early pine establishment was generally successful after winter harvesting but not after summer harvesting. Pine regeneration was excellent following the 1-inch winter harvest and acceptable following the 4-inch winter harvest. The treatment resulting in the best pine regeneration also produced the greatest coverage o

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Hansen, Robert S., and M. Victor Bilan. "Height Growth of Loblolly and Slash Pine Plantations in the Northern Post-Oak belt of Texas." Southern Journal of Applied Forestry 13, no. 1 (1989): 5–8. http://dx.doi.org/10.1093/sjaf/13.1.5.

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Abstract Age accounted for over 70% of the variation in tree height of 10- to 44-year-old loblolly pine (Pinus taeda L.) and slash (Pinus elliottii Engelm.) plantations established on deep sands, moderate sands, and nonsandy soils in the Northern Post-Oak Belt of Texas. Climatic and edaphicfactors, relating either directly or indirectly to the amount of moisture available for tree use, explained up to 17% of height growth variation. Height growth of the plantations was comparable to that of plantations growing in the pine-mixed hardwood forest cover type of East Texas. The NorthernPost-Oak Bel

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Axelson, Jodi N., René I. Alfaro, and Brad C. Hawkes. "Changes in stand structure in uneven-aged lodgepole pine stands impacted by mountain pine beetle epidemics and fires in central British Columbia." Forestry Chronicle 86, no. 1 (2010): 87–99. http://dx.doi.org/10.5558/tfc86087-1.

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We examined the development of lodgepole pine (Pinus contorta Dougl.) in uneven-aged stands in the Interior Douglasfir (IDF) biogeoclimatic zone of central of British Columbia (B.C.), which are currently undergoing a massive outbreak of the mountain pine beetle (Dendroctonus ponderosae Hopkins; MPB). Using historical ecological approaches, dendrochronology, and stand measurement data, we determined the roles MPB and fire disturbances have played in the ecological processes of lodgepole pine in an Interior Douglas-fir zone. We found that multiple mixed-severity fires created patchy uneven-aged

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Brown, James H., Valerie B. Cruickshank, Walter P. Gould, and Thomas P. Husband. "Impact of Gypsy Moth Defoliation in Stands Containing White Pine." Northern Journal of Applied Forestry 5, no. 2 (1988): 108–11. http://dx.doi.org/10.1093/njaf/5.2.108.

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Abstract Heavy infestations of gypsy moth in Rhode Island forests in 1981 and 1982 caused the greatest defoliation and mortality of white pines in stands where pines were mixed with oaks. White pine basal area losses were greatest (33.7%) in oak stands where white pine occurs as an understory (oak-pine). In stands where pines shared the canopy with oaks (pine-oak), white pine basal area losses were 12.7%, and in pure pine stands, losses were 7.3%. Losses were nearly 5, 4 and 9 times those observed in control stands for oak-pine, pine-oak, and pine stands, respectively. Results indicate that in

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Dolgova, E. A., O. N. Solomina, V. V. Matskovsky, A. S. Dobryansky, N. A. Semenyak, and S. S. Shpunt. "Spatial variation of pine tree-ring growth in the Solovetsky Islands." Izvestiya Rossiiskoi akademii nauk. Seriya geograficheskaya, no. 2 (May 13, 2019): 41–50. http://dx.doi.org/10.31857/s2587-55662019241-50.

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The paper presents the results of an analysis of the spatial variability of pine tree-ring growth in the Solovetsky Islands. As a result of the field work, tree-ring network containing 14 dendrochronological pine sites in various habitats were developed. For each site, a local tree-ring width pine chronology (from 472 to 271 years) is obtained, representing pine growth features in different habitat conditions. A comparison between chronologies revealed synchronious growth of pine in various habitats in the late 17th, in the first half of the 18th and the beginning of the 19th centuries. The us

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Olszowska, Grażyna. "Denoting the intensity of soil biochemical transition according to stand species composition." Forest Research Papers 79, no. 4 (2018): 327–34. http://dx.doi.org/10.2478/frp-2018-0033.

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Abstract The aim of this study was to denote biochemical soil activity in pure Scots pine, Norway spruce, silver fir, European larch, European beech and oak stands as well as in mixed fir-pine, beech-pine and fir-beech forests growing on a fertile fresh mixed deciduous site. The field work was carried out in the following Forest Districts: Nowe Ramuki (Mazursko-Podlaska forest region), Płońsk, Jabłonna, Brzeziny Siedlce, Grójec (Mazowiecko-Podlaska forest region) and Skarżysko, Ostrowiec and Marcule (Małopolska forest region). In 2015–2017, sample plots were assigned and chemical as well as so

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Levin, Sergey. "The growth of Сrimean pine mixed with scots pine in the protecting forest area in Voronezh". Proceedings of the Kuban State Agrarian University 1, № 81 (2019): 103–8. http://dx.doi.org/10.21515/1999-1703-81-103-108.

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Perot, T., P. Vallet, and F. Archaux. "Growth compensation in an oak–pine mixed forest following an outbreak of pine sawfly (Diprion pini)." Forest Ecology and Management 295 (May 2013): 155–61. http://dx.doi.org/10.1016/j.foreco.2013.01.016.

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Sun, Shuaichao, Quang V. Cao, and Tianjian Cao. "Characterizing Diameter Distributions for Uneven-Aged Pine-Oak Mixed Forests in the Qinling Mountains of China." Forests 10, no. 7 (2019): 596. http://dx.doi.org/10.3390/f10070596.

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Pine-oak mixed forests in the Qinling Mountains are an essential part of the ecosystem in Northwestern China. Diameter distribution models for four species groups of pine-oak mixed forests were developed using the Weibull function. Both moment and hybrid estimation approaches were used to predict the Weibull parameters. For each approach, three fitting methods (maximum likelihood estimator regression (MLER), cumulative distribution function regression (CDFR) and modified CDFR) were employed to obtain estimates for coefficients of regression equations to predict Weibull parameters. Overall resu

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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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Bohall-Wood, Petra, and Michael W. Collopy. "Abundance and Habitat Selection of Two American Kestrel Subspecies in North-Central Florida." Auk 103, no. 3 (1986): 557–63. http://dx.doi.org/10.1093/auk/103.3.557.

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Abstract We censused American Kestrels (Falco sparverius) in the three vegetation communities representative of north-central Florida (pine flatwoods, sandhills, and agriculture/mixed hardwoods) along 24 16-km roadside transects. The winter kestrel population included resident F. s. paulus and migrant F. s. sparverius. Eighty-four percent of the 1,433 kestrels were sighted in winter, reflecting a significant influx of migrant F. s. sparverius, and were primarily females (65%). Significant (P < 0.05) sexual differences in winter habitat use were attributed to the large numbers of migrants. M

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Groninger, J. W., J. R. Seiler, S. M. Zedaker, and P. C. Berrang. "Effects of elevated CO2, water stress, and nitrogen level on competitive interactions of simulated loblolly pine and sweetgum stands." Canadian Journal of Forest Research 25, no. 7 (1995): 1077–83. http://dx.doi.org/10.1139/x95-119.

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Loblolly pine (Pinustaeda L.) and sweetgum (Liquidambarstyraciflua L.) were grown in mixed stands and in monocultures at 2.54 × 2.54 cm spacing in controlled-environment chambers. Treatments consisted of present (ambient) and projected future (ambient + 400 ppm) carbon dioxide (CO2) concentrations, drought-stressed, and well-watered conditions, and low (20 kg N/ha) and high (474 kg N/ha) nitrogen application rates. After two accelerated growing cycles, total biomass of both species was significantly greater under elevated CO2. No significant interactions between CO2 concentration and water ava

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Culin, Joseph D., and Marianne W. Robertson. "Spider Prey of Trypoxylon lactitarse Saussure (Hymenoptera: Sphecidae)." Journal of Entomological Science 38, no. 3 (2003): 321–33. http://dx.doi.org/10.18474/0749-8004-38.3.321.

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Surveys of prey use by Trypoxylon lactitarse Saussure (Hymenoptera: Sphecidae) were conducted in Clemson, SC, by placing trap-nests in four habitat types: a planted loblolly pine stand, a naturally-occurring mixed hardwood forest, an area of mowed grass containing scattered mature oaks, and a mowed pasture. Trypoxylon lactitarse only provisioned trap-nests in the planted pine and mixed hardwood habitats. All recovered trap-nests were found between 1 and 19 July 1991. In the pine habitat, two fully provisioned trap-nests were recovered that contained a total of 91 spiders in the families Aranei

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Sanborn, P. T., and R. P. Brockley. "Decomposition of pure and mixed foliage litter in a young lodgepole pine – Sitka alder stand in the central interior of British Columbia." Canadian Journal of Forest Research 39, no. 11 (2009): 2257–62. http://dx.doi.org/10.1139/x09-122.

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A 7-year litterbag experiment examined mass loss dynamics of Sitka alder ( Alnus viridis (Chaix) DC. subsp. sinuata (Regel) A. Löve & D. Löve) and lodgepole pine ( Pinus contorta Dougl. ex Loud. var. latifolia Engelm. ex S. Watson) foliage litter in a young stand dominated by these species in the Sub-Boreal Spruce biogeoclimatic zone of central British Columbia. Although mass loss was initially faster for alder litter, the amounts of mass remaining for alder, pine, and mixed pine–alder (50:50 by mass) litter began to converge after 2 years. Mass loss by the mixed litter differed significan

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Inclán, Rosa, Daniel De la Torre, Marta Benito, and Agustín Rubio. "Soil CO2Efflux in a Mixed Pine-Oak Forest in Valsaín (Central Spain)." Scientific World JOURNAL 7 (2007): 166–74. http://dx.doi.org/10.1100/tsw.2007.7.

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Soil-surface CO2efflux and its spatial and temporal variation were investigated in a southern Mediterranean, mixed pine-oak forest ecosystem on the northern slopes of the Sierra de Guadarrama in Spain from February 2006 to July 2006. Measurements of soil CO2efflux, soil temperatures, and moisture were conducted in nine 1963-m2sampling plots distributed in a gradient around the ecotone betweenPinus sylvestrisL. andQuercus pyrenaicaLam. forest stands. Total soil organic matter, Walkey-Black C, particulate organic matter, organic matter fraction below 53 μm, total soil nitrogen content, total soi

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Coble, Dean W., and Young-Jin Lee. "A Mixed-Effects Height—Diameter Model for Individual Loblolly and Slash Pine Trees in East Texas." Southern Journal of Applied Forestry 35, no. 1 (2011): 12–17. http://dx.doi.org/10.1093/sjaf/35.1.12.

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Abstract A new mixed-effects model was developed that predicts individual-tree total height for loblolly (Pinus taeda) and slash pine (Pinus elliottii) as a function of individual-tree diameter (in.), dominant height (ft), quadratic mean diameter (in.), and maximum stand diameter (in.). Data from 119,983 loblolly pine and 42,697 slash pine height–diameter observations collected on 185 loblolly pine and 84 slash pine permanent plots located in plantations throughout East Texas were used for model fitting. This new model is an improvement over earlier models fit with ordinary least squares, in t

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