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Journal articles on the topic 'Tree growth; Wood density; Dry matter production'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Niemczyk, Marzena, Margalita Bachilava, Marek Wróbel, Marcin Jewiarz, Giorgi Kavtaradze, and Nani Goginashvili. "Productivity and Biomass Properties of Poplar Clones Managed in Short-Rotation Culture as a Potential Fuelwood Source in Georgia." Energies 14, no. 11 (2021): 3016. http://dx.doi.org/10.3390/en14113016.

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Georgian forests are very valuable natural resources, but due to the lack of affordable alternatives to firewood, people are forced to use forest resources illegally and unsustainably. The aim of this study was to determine the productivity and biomass properties of four poplar clones from Aigeiros and Tacamahaca and one control clone, considering their wood and bark characteristics and their proportion in the stems. Short-rotation woody crops with these clones represent a potential source of commercial fuelwood production in Georgia as an alternative to natural forests. These tree characteris

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Caruso, T., P. Inglese, F. Sottile, and F. P. Marra. "Effect of Planting System on Productivity, Dry-matter Partitioning and Carbohydrate Content in Above-ground Components of `Flordaprince' Peach Trees." Journal of the American Society for Horticultural Science 124, no. 1 (1999): 39–45. http://dx.doi.org/10.21273/jashs.124.1.39.

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Vegetative growth, fruit yields, and dry matter partitioning within above-ground components were assessed during three growing seasons for trees of an early ripening peach (Prunus persica L. Batsch `Flordaprince' on GF 677 rootstock) trained either to a free standing central leader (930 trees/ha) or to Y shape (1850 trees/ha). Individual trees trained to central leader gave higher fruit yield, had a significantly greater leaf area and accumulated more dry mass in above-ground components per tree than Y shape trees. The training systems did not differ in terms of yield efficiency (yield per tru

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Balzano, Angela, Katarina Čufar, and Veronica De Micco. "Xylem and Phloem Formation Dynamics in Quercus ilex L. at a Dry Site in Southern Italy." Forests 12, no. 2 (2021): 188. http://dx.doi.org/10.3390/f12020188.

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Quercus ilex L. dieback has been recently reported at numerous Mediterranean sites. Wood and phloem formation dynamics and tree-ring series of anatomical traits can be used to evaluate growth conditions of trees. We monitored cambial activity in Q. ilex trees growing at a site in southern Italy in order to assess how xylem and phloem production are affected by harsh seasonal climatic variation during a dry year. We followed xylogenesis by counting the number of cambial cells and detecting the occurrence of post-cambial cells throughout the year. As phloem did not show clear growth rings and bo

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

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

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Tonini, Helio, Marina Moura Morales, Flavio Jesus Wruck, and Ronaldo Maran Deliberali. "GROWTH AND ENERGY QUALITY OF EUCALYPTUS WOOD IN DIFFERENT CROP-LIVESTOCK-FOREST SPATIAL ARRANGEMENTS." FLORESTA 50, no. 4 (2020): 1707. http://dx.doi.org/10.5380/rf.v50i4.59650.

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The aim of the present study was to assess the growth and energetic properties of genetic material of eucalyptus grown in several integrated crop-livestock system spatial arrangements in Barra-do-Garças City (MT). The genetic material of 76-month old Eucalyptus spp from eight spatial arrangements were assessed according to the following properties: diameter, height and volume growth, mortality rate, dry matter yield, sapwood to heartwood ratio, form factor, bark volume, basic density, superior calorific value, ash content, volatile matter, fixed carbon and trunk energy. Data analysis was perfo

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Grossman, Yaffa L., and Theodore M. DeJong. "Fruit Tree Light Interception, Simulated Carbon Assimilation, and Carbon Partitioning." HortScience 30, no. 4 (1995): 881B—881. http://dx.doi.org/10.21273/hortsci.30.4.881b.

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Plant dry matter production is proportional to light interception, but fruit production does not always increase with increased light interception. Seasonal daily patterns of light interception by cling peach trees planted in four different planting density/training systems were obtained using a Decagon ceptometer. The High Density V system (1196 trees/ha) intercepted significantly more light than the KAC V and Cordon systems (918 trees/ha). The Vase system (299 trees/ha) intercepted significantly less light than the other systems. Response surfaces using a quadratic model with interactions fo

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Trnka, M., M. Trnka, J. Fialová, et al. "Biomass production and survival rates of selected poplar clones grown under a short-rotation on arable land." Plant, Soil and Environment 54, No. 2 (2008): 78–88. http://dx.doi.org/10.17221/437-pse.

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Fast-growing woody plants that can be grown under short-rotation systems offer an alternative to food production on arable land, and serve as a potential source of renewable energy. In order to establish the feasibility of future large scale production under the conditions of the Czech-Moravian highland, a high density experimental field plantation including a range of available clones of <I>Populus</I> sp. and <I>Salix</I> sp. with the total area of 1.5 ha was established in early 2001 in Domanínek (Czech Republic, 49°32'N, 16°15'E and altitude 530 m). The clone experi

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PRASAD, J. V. N. S., G. R. KORWAR, K. V. RAO, et al. "EFFECT OF MODIFICATION OF TREE DENSITY AND GEOMETRY ON INTERCROP YIELDS AND ECONOMIC RETURNS IN LEUCAENA-BASED AGRO-FORESTRY SYSTEMS FOR WOOD PRODUCTION IN ANDHRA PRADESH, SOUTHERN INDIA." Experimental Agriculture 46, no. 2 (2010): 155–72. http://dx.doi.org/10.1017/s0014479709990858.

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SUMMARYLeucaena leucocephala is cultivated at close spacings that do not permit intercropping. This has been a discouraging factor for small landholders who need regular income to establish leucaena plantations and benefit from the rapidly expanding market for wood. Therefore, on-farm experiments were conducted near Bhadrachalam, Khammam district, Andhra Pradesh, India, from August 2001 to January 2006, to study the effect of reducing tree density and modifying tree geometry on the growth of leucaena and productivity of intercrops. The inter-row spacing of 1.3 m in farmers' practice was increa

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Sotelo Montes, Carmen, John C. Weber, Tougiani Abasse, et al. "Variation in fuelwood properties and correlations of fuelwood properties with wood density and growth in five tree and shrub species in Niger." Canadian Journal of Forest Research 47, no. 6 (2017): 817–27. http://dx.doi.org/10.1139/cjfr-2016-0497.

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Information about variation and correlations of fuelwood properties and growth is needed in order to recommend species and sites for fuelwood production in a changing climate in Africa. We investigated the effects of site variables (land use, soil, terrain), geographical coordinates, and mean annual rainfall on fuelwood properties (volatile matter, fixed carbon, ash content, moisture content, gross calorific value, gross calorific value per cubic metre, and fuel value index) of Combretum glutinosum Perr., Combretum micranthum G. Don., Combretum nigricans Lepr. ex Guill. & Perr., Guiera sen

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Silva, Sérgio Ricardo da, Nairam Félix de Barros, Liovando Marciano da Costa, and Fernando Palha Leite. "Soil compaction and eucalyptus growth in response to forwarder traffic intensity and load." Revista Brasileira de Ciência do Solo 32, no. 3 (2008): 921–32. http://dx.doi.org/10.1590/s0100-06832008000300002.

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During timber exploitation in forest stands harvesting machines pass repeatedly along the same track and can cause soil compaction, which leads to soil erosion and restricted tree root growth. The level of soil compaction depends on the number of passes and weight of the wood load. This paper aimed to evaluate soil compaction and eucalyptus growth as affected by the number of passes and wood load of a forwarder. The study was carried out in Santa Maria de Itabira county, Minas Gerais State - Brazil, on a seven-year-old eucalyptus stand planted on an Oxisol. The trees were felled by chainsaw an

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Choi, Hyun-Sug, Curt R. Rom, Mengmeng Gu, and Jason McAfee. "(160) Seasonal Variations of Nutrient Status in Soil and Leaves, Soil Properties, and Tree Growth under Different Organic Apple Groundcover Management Production Systems." HortScience 41, no. 4 (2006): 1032B—1032. http://dx.doi.org/10.21273/hortsci.41.4.1032b.

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Seasonal variations of nutrient concentrations in soil and apple leaves, soil properties, weed density, and tree performance were observed for response to four groundcover managements systems: 1) mowed control; 2) plastic woven landscape fabric; 3) wood chip mulch; and 4) shredded commercial paper mulch. Soil sampled below the wood chip and shredded paper mulch treatments had higher NO3-N concentrations during the season. Soil below the shredded paper mulch had greater soil Ca, Na, and Zn than other treatments. Soil sampled below wood chip mulch had higher Mg and B. Leaf K was greater for tree

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TerAvest, Dan, Jeffrey L. Smith, Lynne Carpenter-Boggs, Lori Hoagland, David Granatstein, and John P. Reganold. "Influence of Orchard Floor Management and Compost Application Timing on Nitrogen Partitioning in Apple Trees." HortScience 45, no. 4 (2010): 637–42. http://dx.doi.org/10.21273/hortsci.45.4.637.

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Synchronizing the supply of plant-available nitrogen (N) from organic materials with the N needs of apple trees is essential to cost-effective organic apple production. Tree growth and organic matter mineralization are affected by orchard floor management. This study examines the effects of three orchard floor management systems, cultivation, wood chip mulch, and a legume cover crop, on the accumulation and partitioning of compost-derived N in young apple (Malus domestica Borkh.) trees at different compost application dates across two growing seasons. Compost enriched with 15N was applied to a

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Mia, Md Jebu, Francesca Massetani, Giorgio Murri, et al. "Integrated Weed Management in High Density Fruit Orchards." Agronomy 10, no. 10 (2020): 1492. http://dx.doi.org/10.3390/agronomy10101492.

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Despite the productivity, achieving long-term sustainability and maintaining plant biodiversity have become the pivotal goals in orchard floor management, especially along tree rows. Thus, the paradigm of eradicating weeds in the tree row using chemical herbicide or repeated soil tillage needs to be substituted with more sustainable alternatives. This study was conducted in two commercial apple and peach orchards in Marche region (Italy). Two integrated mechanical approaches, integrated mowing (mower and brush or disc) and integrated tillage (blade weeder and integrated mowing), were compared

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McGowan, AA, and GL Mathews. "Effect of inter-row spacing on the production of tagasaste and associated pastures." Australian Journal of Experimental Agriculture 34, no. 4 (1994): 487. http://dx.doi.org/10.1071/ea9940487.

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Tagasaste (Chamaecytisus proliferus (L. fil.) Link ssp. palmensis) was planted at 4 densities (2500, 5000, 10000, 20000 plants/ha with row spacings of 0.5, 1, 2 or 4 m). Plants were 1 m apart within rows for all densities, The tagasaste was harvested at about 6-monthly intervals in February and August over a 5-year period at a height of 0.5 m. Pasture growing between the rows was harvested at the same time to about 50 mm height. Growth per tree was reduced by increasing density, especially as the trees matured, but even after 4 years, yield per ha was more than 200% greater at the lowest densi

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Bouriaud, O., N. Bréda, J. L. Dupouey, and A. Granier. "Is ring width a reliable proxy for stem-biomass increment? A case study in European beech." Canadian Journal of Forest Research 35, no. 12 (2005): 2920–33. http://dx.doi.org/10.1139/x05-202.

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The relationship between basal-area increment and stem-volume increment or biomass annual production was investigated in 30 dominant European beech (Fagus sylvatica L.) in northeastern France. The trees were sampled at four heights along the stem for dendrochronological and densitometric measurements. Annual stem-volume and stem-biomass increments were computed from the measurements and were not obtained by applying allometric relationships. A comparison of the ring-area increments at the four stem heights indicated that the vertical distribution of annual growth fluctuates at an interannual t

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BEAUCHEMIN, SUZANNE, MARC R. LAVERDIÈRE, and ADRIEN N'DAYEGAMIYE. "EFFETS D'APPORT D'AMENDEMENTS LIGNEUX FRAIS ET HUMIFIES SUR LA PRODUCTION DE POMME DE TERRE ET SUR LA DISPONIBILITE DE L'AZOTE EN SOL SABLEUX." Canadian Journal of Soil Science 70, no. 4 (1990): 555–64. http://dx.doi.org/10.4141/cjss90-058.

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Intensive potato cropping has been reported as a major cause of degradation of sandy soils. Wood residues from tree clipping applied to soils can substitute for crop residues to maintain adequate organic matter levels and crop productivity. However, this ligneous material presents a C:N ratio varying from 50 to 175 and, when applied in large quantities, may induce N immobilization at the expense of the crop. The objectives of this study were to quantify the importance of this N immobilization following addition of residues and its effect on yield and quality of potato crops. Fresh or humified

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Grossman, Y. L., and T. M. DeJong. "Training and Pruning System Effects on Vegetative Growth Potential, Light Interception, and Cropping Efficiency in Peach Trees." Journal of the American Society for Horticultural Science 123, no. 6 (1998): 1058–64. http://dx.doi.org/10.21273/jashs.123.6.1058.

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Plant dry matter production is proportional to light interception, but fruit production does not always increase with increased light interception. Vegetative growth potential, the effect of cropping on vegetative growth, light interception and cropping efficiency of a clingstone peach [Prunus persica (L.) Batsch `Ross' on `Nemaguard' rootstock] were assessed in four production systems differing in tree density and training system. The four systems were a perpendicular V (KAC-V) system, a high-density perpendicular V (HiD KAC-V) system, a cordon system, and an open vase system. Vegetative grow

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Tyukavina, Olga N., Denis N. Klevtsov, and D. M. Adaj. "Calorific Value of Pine Wood in Crops of the Northern Taiga Forest Area." Lesnoy Zhurnal (Forestry Journal), no. 1 (February 9, 2021): 82–91. http://dx.doi.org/10.37482/0536-1036-2021-1-82-91.

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Calorific value of plants is an important characteristic for evaluation of material cycles and energy conversion in forest ecosystems, as well as a qualitative characteristic of plant raw materials as fuel. Wood biofuel is increasingly used in the production of thermal energy, in this regard, it is important to study the calorific value of wood, as well as the conditions for growing high-quality raw materials. The research purpose is to identify the dependence of the calorific value of pine wood in crops on its macroscopic structure, the assimilation apparatus characteristics, density and heig

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Fyllas, N. M., E. Gloor, L. M. Mercado, et al. "Analysing Amazonian forest productivity using a new individual and trait-based model (TFS v.1)." Geoscientific Model Development Discussions 7, no. 1 (2014): 1413–52. http://dx.doi.org/10.5194/gmdd-7-1413-2014.

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Abstract. Repeated long-term censuses have revealed large-scale spatial patterns in Amazon Basin forest structure and dynamism, with some forests in the west of the Basin having up to a twice as high rate of aboveground biomass production and tree recruitment as forests in the east. Possible causes for this variation could be the climatic and edaphic gradients across the Basin and/or the spatial distribution of tree species composition. To help understand causes of this variation a new individual-based model of tropical forest growth designed to take full advantage of the forest census data av

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Petráš, Rudolf, Julian Mecko, and Viera Petrášová. "ENERGY POTENTIAL IN PRODUCTION OF FAST-GROWING POPLAR CLONES IN SLOVAK REGIONS." Acta Regionalia et Environmentalica 10, no. 2 (2013): 51–54. http://dx.doi.org/10.2478/aree-2013-0011.

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Abstract Calorific value production from the above-ground biomass of stands was derived from its volume production. The mathematical models of growth tables of I-214 and Robusta poplar clones, biomass density values and calorific values of biomass dry matter were used for its calculation. At the stands aged 35 years and site indices of 20, 30 and 40, the calorific value has approximately 2.700, 6.000 and 9.300 GJ.ha-1 respectively. The I-214 clone has higher production than Robusta in the first half of its growth, albeit with minimum differences. The annual increments of calorific value culmin

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Nosko, V. L., O. V. Pavliv, and A. Iu Linnik. "Effectiveness evaluation of energy crops production as a biofuel sources." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 91 (2019): 83–88. http://dx.doi.org/10.32718/nvlvet-a9114.

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Energy crops are grown for energy purposes. Traditionally energy crops are corn and sugarcane which are grown for industrial scale ethanol, rapeseed for producing biodiesel, annual and perennial grasses, for example cane, miscanthus, cereal straw, as well as fast-growing tree crops for biomass production. The most interesting for the temperate climate zone of Europe are the fast-growing willow species. The interest in growing energy crops, which can be used as a renewable energy source, in European countries arose in the 1970s, which was related with rising prices for traditional energy source

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Xu, Hao, Danielle Ediger, Amritpal Singh, and Christopher Pagliocchini. "Rootstock–Scion Hydraulic Balance Influenced Scion Vigor and Yield Efficiency of Malus domestica cv. Honeycrisp on Eight Rootstocks." Horticulturae 7, no. 5 (2021): 99. http://dx.doi.org/10.3390/horticulturae7050099.

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Rootstocks with internal hydraulic limitations can effectively restrict scion growth, influence crop load, and improve yield efficiency in apple production. The characteristics of xylem vessels in rootstock and scion play essential roles in determining the hydraulic properties of the grafted tree; however, much remains unknown for commonly available rootstocks. In this study, we extracted secondary xylem using an increment borer from living Honeycrisp scion (Malus domestica cv. ‘Honeycrisp’), and two Malling rootstocks, one Budagovsky rootstock, and five Geneva rootstocks. The size and density

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Varghese, M., C. E. Harwood, R. Hegde, and N. Ravi. "Evaluation of Provenances of Eucalyptus camaldulensis and Clones of E. camaldulensis and E. tereticornis at Contrasting Sites in Southern India." Silvae Genetica 57, no. 1-6 (2008): 170–79. http://dx.doi.org/10.1515/sg-2008-0026.

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Abstract A total of 188 open-pollinated families of Eucalyptus camaldulensis Dehnh. from 18 Australian natural provenances and 15 selected Indian families of the “Mysore Gum” land race were evaluated in three provenance- family trials at contrasting sites in southern India. At two years of age, the fastest growth was recorded at the driest site in Tamil Nadu, where E. camaldulensis provenances from Queensland were superior to those from Northern Territory and Western Australia, and the Indian land race. Provenance differences were less pronounced at the two higher-rainfall sites in Andhra Prad

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Vale, Ailton Teixeira do, and Jeanine Maria Felfili. "Dry biomass distribution in a cerrado sensu stricto site in Brazil central." Revista Árvore 29, no. 5 (2005): 661–69. http://dx.doi.org/10.1590/s0100-67622005000500001.

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The Cerrado has been the main source of firewood and charcoal in Brazil, but despite being one of the hot spots for conservation of the world's biodiversity, neither plantations of native species nor sustainable management has been adopted in the region. The aim of this work was to investigate the biomass distribution and the potential for energy production of the cerrado species. The study was conducted in a cerrado sensu stricto site at the Água Limpa Farm (15º 56'14'' S and 47º 46'08'' W) in the Cerrado Biosphere Reserve. An area of 63.54ha was divided in 20 x 50m plots and, a random sample

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Kopeć, Szczepan, Paweł Staniszewski, Aleksandra Giedrowicz, Jakub Misiurski, Anna Szymańska, and and Maciek Bilek. "Selected Physical Parameters and Daily Volume of Silver Birch Sap Collected from the Cardinal Directions of the Tree Trunk." Environmental Sciences Proceedings 3, no. 1 (2020): 100. http://dx.doi.org/10.3390/iecf2020-07966.

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The collection, sale, and processing of non-wood forest products are becoming a significant factor in stimulating regional development and improving the economic situation, especially of poor rural communities. The fashion for a healthy lifestyle is also conducive to the growth of interest in such goods. Among them, birch sap is indicated as one of the most promising non-wood forest resources of central Europe, with very wide possibilities of its practical use, e.g., in the food, pharmaceutical, and cosmetics industries. The potential increase in birch sap commercial use prompts research on bo

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Fyllas, N. M., E. Gloor, L. M. Mercado, et al. "Analysing Amazonian forest productivity using a new individual and trait-based model (TFS v.1)." Geoscientific Model Development 7, no. 4 (2014): 1251–69. http://dx.doi.org/10.5194/gmd-7-1251-2014.

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Abstract. Repeated long-term censuses have revealed large-scale spatial patterns in Amazon basin forest structure and dynamism, with some forests in the west of the basin having up to a twice as high rate of aboveground biomass production and tree recruitment as forests in the east. Possible causes for this variation could be the climatic and edaphic gradients across the basin and/or the spatial distribution of tree species composition. To help understand causes of this variation a new individual-based model of tropical forest growth, designed to take full advantage of the forest census data a

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Zhang, Lan, Yajun Chen, Guangyou Hao, Keping Ma, Frans Bongers, and Frank J. Sterck. "Conifer and broadleaved trees differ in branch allometry but maintain similar functional balances." Tree Physiology 40, no. 4 (2020): 511–19. http://dx.doi.org/10.1093/treephys/tpz139.

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Abstract Conifers and broadleaved trees coexist in temperate forests and are expected to differ in partitioning strategies between leaf and stem. We compare functional balances between water loss and water supply, and between sugar production and sugar transport/storage, and associate these with xylem growth to better understand how they contribute to these life form strategies. We sampled canopy branches from 14 common species in a temperate forest in northeast China and measured xylem area, phloem area, ray area, ray percentage, dry wood density, xylem conductivity and mean xylem growth rate

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Mészáros, Martin, Luděk Laňar, Josef Sus, and Jan Náměstek. "Comparison of Two Training Methods Applied to Apple Trees Trained to Slender Spindle During the First Years After Planting." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65, no. 4 (2017): 1241–45. http://dx.doi.org/10.11118/actaun201765041241.

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The research was focused on the comparison of two pruning methods (winter pruning and winter + summer pruning) applied to apple trees trained to a standard and a modified slender spindle. The orchard of ‘Topaz’ trees, grafted on rootstock M 9, was planted in spring 2011. In the years 2013 – 2016, trunk cross sectional area (TCSA), crown volume, cumulative yields, yield efficiency, relative proportion of fruit size classes, number of cuts and dry matter of pruned wood were analyzed. The total growth intensity of the trees, measured by TCSA, was similar among the treatments. The trees of modifie

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Yang, Mei, Minguo Liu, Jiaoyun Lu, and Huimin Yang. "Effects of shading on the growth and leaf photosynthetic characteristics of three forages in an apple orchard on the Loess Plateau of eastern Gansu, China." PeerJ 7 (August 29, 2019): e7594. http://dx.doi.org/10.7717/peerj.7594.

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Background Inclusion of forage into the orchard is of great help in promoting the use efficiency of resources, while shading from trees restricts forage growth and production in the Loess Plateau of China. This study was aimed to investigate how tree shading affected leaf trait, photosynthetic gas exchange and chlorophyll feature of forages under the tree in the orchard-forage system. Methods The shading treatments were set as partially cutting branches (reduced shading), normal fruit tree shading (normal shading) and normal tree shading plus sun-shading net (enhanced shading) in an apple orch

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Milevskaya, S. Y. "Production potential of photosynthesis in forest ecosystems of the low mountain Pokuttya (Ukrainian Carpathians)." Biosystems Diversity 24, no. 1 (2016): 15–25. http://dx.doi.org/10.15421/011603.

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The aim of the study was testing on the example of a model region a method of estimation of the production potential of forest ecosystems and the consequences of anthropogenic changes there. The object of study is a typical Carpathian lower mountain forest in the basin of the river Lyuchka, an area of 14,806 ha. It has long undergone considerable agricultural transformations. Studies were based on cartographic modeling of modern anthropogenically transformed biogeocenotic cover using large scale satellite images. The main types of biogeocenotical cover were defined according to the altitudinal

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Santos Batista Bonini, Carolina dos, and Marlene Cristina Alves. "Recovery of soil physical properties by green manure, liming, gypsum and pasture and spontaneous native species¹." Revista Brasileira de Ciência do Solo 35, no. 4 (2011): 1397–406. http://dx.doi.org/10.1590/s0100-06832011000400034.

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Inadequate usage can degrade natural resources, particularly soils. More attention has been paid to practices aiming at the recovery of degraded soils in the last years, e.g, the use of organic fertilizers, liming and introduction of species adapted to adverse conditions. The purpose of this study was therefore to investigate the recovery of physical properties of a Red Latosol (Oxisol) degraded by the construction of a hydroelectric power station. In the study area, a soil layer about 8m thick had been withdrawn by heavy machines leading not only to soil compaction, but resulting in high-degr

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Martín, M. P., J. Pacheco-Labrador, R. González-Cascón, et al. "Estimación de variables esenciales de la vegetación en un ecosistema de dehesa utilizando factores de reflectividad simulados estacionalmente." Revista de Teledetección, no. 55 (June 23, 2020): 31. http://dx.doi.org/10.4995/raet.2020.13394.

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<p>Mixed vegetation systems such as wood pastures and shrubby pastures are vital for extensive and sustainable livestock production as well as for the conservation of biodiversity and provision of ecosystem services, and are mostly located in areas that are expected to be more strongly affected by climate change. However, the structural characteristics, phenology, and the optical properties of the vegetation in these mixed -ecosystems such as savanna-like ecosystems in the Iberian Peninsula which combines herbaceous and/or shrubby understory with a low density tree cover, constitute a se

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Tanabe, Jun, Yuya Takashima, Futoshi Ishiguri та ін. "Differences in β-thujaplicin content of wood between plantation- and naturally grown Thujopsis dolabrata var. hondae (hinokiasunaro) trees in Shimokita Peninsula, Aomori, Japan". Journal of Wood Science 65, № 1 (2019). http://dx.doi.org/10.1186/s10086-019-1835-z.

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Abstract β-Thujaplicin (hinokitiol) is an important extractive of Thujopsis dolabrata var. hondae (hinokiasunaro) that confers high durability to its wood. We investigated differences in β-thujaplicin content in wood from plantation- and naturally grown trees of T. dolabrata var. hondae, and also examined growth rate and wood density. A total of 29 trees were collected from two natural forests and a plantation forest in the Shimokita Peninsula, Aomori, Japan. β-Thujaplicin content was determined for each heartwood sample by gas chromatography. The content ranged from 0.29 to 3.67 mg/g (oven-dr

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Monge González, María, Patrick Weigelt, Nathaly Guerrero-Ramírez, et al. "BIOVERA-Tree: tree diversity, community composition, forest structure and functional traits along gradients of forest-use intensity and elevation in Veracruz, Mexico." Biodiversity Data Journal 9 (September 9, 2021). http://dx.doi.org/10.3897/bdj.9.e69560.

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Here, we describe BIOVERA-Tree, a database on tree diversity, community composition, forest structure and functional traits collected in 120 forest plots, distributed along an extensive elevational gradient in Veracruz State, Mexico. BIOVERA-Tree includes information on forest structure from three levels of forest-use intensity, namely old-growth, degraded and secondary forest, replicated across eight elevations from sea-level to near the tree line at 3500 m and on size and location of 4549 tree individuals with a diameter at breast height ≥ 5 cm belonging to 216 species, 154 genera and 80 fam

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Hawke, M. F., and J. D. Tombleson. "Production and interaction of pastures and shelterbelts in the central North Island." Proceedings of the New Zealand Grassland Association, January 1, 1993, 193–97. http://dx.doi.org/10.33584/jnzg.1993.55.2095.

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Many New Zealand farms contain shelterbelts which have generally been unmanaged, resulting in dubious shelter benefits and poor log values at harvest. The effect of a 6- and 7-row Pinus radiata shelterbelt on adjacent pasture production was monitored at Matea, Taupo during 1992193. Pasture production was measured at a range of distances parallel'to the shelterbelts on both sides and on open pasture. A 15% increase in pasture production was recorded at 0.7 tree height distance on both sides of the shelterbelts. There was also a gradual trend of increasing dry matter production as distance from

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Fransson, Peter, Åke Brännström, and Oskar Franklin. "A tree’s quest for light—optimal height and diameter growth under a shading canopy." Tree Physiology, September 2, 2020. http://dx.doi.org/10.1093/treephys/tpaa110.

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Abstract For trees in forests, striving for light is matter of life and death, either by growing taller toward brighter conditions or by expanding the crown to capture more of the available light. Here, we present a mechanistic model for the development path of stem height and crown size, accounting for light capture and growth, as well as mortality risk. We determine the optimal growth path among all possible trajectories using dynamic programming. The optimal growth path follows a sequence of distinct phases: (i) initial crown size expansion, (ii) stem height growth toward the canopy, (iii)

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Lima, Diego Fernandes, and Maria Amanda Menezes Silva. "Coconut powder and fiber as substrate components for the production seedlings of caatinga species." Scientia Plena 16, no. 10 (2020). http://dx.doi.org/10.14808/sci.plena.2020.100203.

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A viable alternative for the final disposal of Cocos nucifera L. waste is its use in the production of substrates to grow seedlings of vegetal species. We carried out an experiment at the Federal Institute of Ceará, Quixadá campus, to assess the technical viability of this alternative. During the experiment, seedlings of Caatinga species (Libidibia ferrea, Cenostigma pyramidale, and Amburana cearenses) were planted in the following treatments: T0 - 70% soil + 30% bovine manure, T1 - 70% soil + 20% bovine manure + 10% coconut powder, and T2 - 70% soil + 20% bovine manure + 10% coconut fiber. In

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Meuleman, B. "Growth table for Corsican pine in Flanders (Belgium)." Silva Gandavensis 56 (October 8, 1991). http://dx.doi.org/10.21825/sg.v56i0.896.

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After its introduction at the start of this century, the Corsican pine has become an important forest tree in Flanders (Belgium). The total area covered by Corsican pine is about 11.000 ha. Due to climatological factors it is virtually absent from the Walloon part of Belgium. Despite the crisis in 1984 - 1986, practical experiences with its vitality and disease resistance are generally positive. Compared to Scots pine which is native to Belgium, its productivity and insensitivity for insect pests is large. To quantify the productivity of Corsican pine, a growth table was constructed using a me

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AMIRTA, RUDIANTO, MUHAMMAD TAUFIQ HAQIQI, SAPARWADI SAPARWADI, et al. "Searching for potential wood biomass for green energy feedstock: A study in tropical swamp-peat forest of Kutai Kertanegara, Indonesia." Biodiversitas Journal of Biological Diversity 20, no. 6 (2019). http://dx.doi.org/10.13057/biodiv/d200605.

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Abstract. Amirta R, Haqiqi MT, Saparwadi, Septia E, Mujiasih D, Setiawan KA, Sekedang MA, Yuliansyah, Wijaya A, Setiyono B, Suwinarti W. 2019. Searching for potential wood biomass for green energy feedstock: A study in tropical swamp-peat forest of Kutai Kertanegara, Indonesia. Biodiversitas 20: 1516-1523. Recently, much attention has been focused on finding suitable plant species, from different forest ecosystems, having the potential to be used as sources of renewable energy. Most of such information was reported from the lowland forest area and only limited information is available regardin

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VENTURIN, NELSON, PATRÍCIA APARECIDA DE SOUZA, REGIS PEREIRA VENTURIN, and RENATO LUIZ GRISI DE MACEDO. "Avaliação nutricional da candiúva (Trema micrantha L. Blumes) em casa de vegetação." FLORESTA 29, no. 12 (1999). http://dx.doi.org/10.5380/rf.v29i12.2318.

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Estudos recentes demonstram que a fertilização de espécies florestais melhora a produtividade das florestas plantadas. Os conhecimentos científicos sobre fertilização de espécies nativas, no entanto, são escassos. Com o objetivo de avaliar os aspectos nutricionais e os efeitos da falta de nutrientes no desenvolvimento de plântulas de candiúva (Trema micrantha), foi conduzido um experimento em casa de vegetação, em substrato de Latossolo Vermelho-Amarelo de baixa fertilidade. Foram utilizados 10 tratamentos dispostos em delineamento de blocos inteiramente casualizados, com cinco repetições e um

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Данилов, Д. А., А. В. Жигунов, Б. Н. Рябинин, and А. А. Вайман. "Assessment of the condition of forest and postagrogenic soils of the Leningrad region and prospects of intensive forest growth in these areas." Известия СПбЛТА, no. 223() (May 21, 2018). http://dx.doi.org/10.21266/2079-4304.2018.223.47-63.

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Используя потенциальное плодородие посагрогенных почв, можно выращивать целевые древесные насаждения и получать балансовую и товарную древесину в более короткие сроки, чем на землях лесного фонда. Проблематика данного вопроса мало исследована и в настоящее время необходимо оценить перспективность выращивания насаждений высокой продуктивности на постагрогенных. Целью проведённого исследования было сравнение лесных и постагрогенных почв по таким параметрам, как содержание углерода органического вещества и общего азота, для прогнозирования перспективности организации хозяйства с ускоренным выращи

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