scholarly journals Establishing windbreaks: how rapidly do the smaller tree transplants reach the height of the larger ones?

2014 ◽  
Vol 60 (No. 1) ◽  
pp. 12-17 ◽  
Author(s):  
J. Dostálek ◽  
M. Weber ◽  
T. Frantík

The aim of this study is to identify a period of time over which smaller, less costly tree transplants can reach the height of larger tree transplants and thus offset their performance. The following Central European native tree species were used: Quercus robur L., Carpinus betulus L., Fraxinus excelsior L., Acer campestre L., Acer pseudoplatanus L., Tilia cordata Mill. and Prunus avium L. In the period after planting, the best growth was observed for small tree transplants. These transplants reached the height of the medium-sized tree transplants for all species except C. betulus. However, the large transplants of A. campestre, F. excelsior and P. avium were still significantly taller than the medium-sized transplants ten years after planting. In contrast, slow growth was observed for the large tree transplants of C. betulus and Q. robur. During the monitoring period, the height of the medium-sized transplants of C. betulus even exceeded the height of the large transplants of this species. These differences suggest that the differences in the establishment rates of individual species are reflected in the growth rates of their plantations during longer periods after planting.    

2009 ◽  
Vol 4 (4) ◽  
pp. 574-584
Author(s):  
Jiří Dostálek ◽  
Martin Weber ◽  
Svatopluk Matula ◽  
Tomáš Frantík

AbstractOn the arable land of the Rosovka Stream alluvium in the Czech Republic, a windbreak containing native woody species, was planted within a restoration project. This study evaluates the effect of that planting of three different tree sizes, on the rate of growth. The sizes of transplants employed in this study included small (1.0–1.5 meters tall), medium-sized (2.0–2.5 meters tall) and large (with a trunk circumference of 0.1–0.12 meters). The following native tree species, from the Eurosiberian region, were used: Quercus robur L., Carpinus betulus L., Fraxinus excelsior L., Acer campestre L., Acer pseudoplatanus L., Tilia cordata Mill., and Prunus avium L. Growth rates were monitored over a five-year period. Small transplants had the highest growth; they grew approximately 0.4 meters more than transplants from the other size categories. Our results show that the selection of the size of transplant has a significant impact on development and growth. However, differences in the post-transplant responses of individual species were found.


2018 ◽  
Vol 28 (8) ◽  
pp. 14-18
Author(s):  
V. P. Masalskiy ◽  
S. I. Kuznetsov

Висвітлено результати досліджень складу насаджень дендрологічних парків Лісостепу України. Встановлено, що в складі насаджень парків кількісно переважають рослини аборигенних видів. Разом із дубом звичайним (Quercus robur L.) паркоутворювальну роль відіграють його супутники: клен гостролистий (Acer platanoides L.), ясен звичайний (Fraxinus exelsior L.), липа серцелиста (Tilia cordata Mill.), клен польовий (Acer campestre L.), клен явір (Acer pseudoplatanus L.), граб звичайний (Carpinus betulus L.), в'язові. Зроблено порівняльний аналіз аборигенної та інтродукованої дендрофлори в дендропарках Лісостепу України з таких критеріїв: функціональність, економічність та естетичність. З погляду функціональності доведено, що садово-паркові об'єкти, основу яких складають аборигенні види покритонасінних, легко створювати, за ними легко доглядати і такі об'єкти є більш довговічними. Доведено, що з економічного погляду парки, створені з покритонасінних аборигенної дендрофлори, є дешевшими за парки, створені з інтродуцентів у 10–15 разів. Встановлено, що парки, створені аборигенною дендрофлорою покритонасінних, мають найбільший позитивний психоемоційний вплив на відвідувачів і є комфортними для відпочинку. Отже, для створення парків, аборигенна дендрофлора є саме тим елементом ландшафту, який повною мірою відповідає основним трьом критеріям оцінки садово-паркового об'єкта, а значить є головним паркоутворювальним елементом.


2017 ◽  
Vol 29 (2) ◽  
pp. 123-134
Author(s):  
Pavel Bulíř

AbstractThe main goal of the research conducted in the Lednice chateau park was to map the current spectrum of host trees and shrubs. The aim of the investigation was also to record changes in the host species, namely between the years 1985 and 2016, and to get an overview of the extent and degree of mistletoe infection on the most significant tree species present in the park. Furthermore, the occurrence of mistletoe across the developmental stages of woody species was monitored. Apart from taxonomic changes also the quantitative extent and the degree of infection reported in the last 31 years, and the impact on the development stages of woody plants in the past 20 years were analysed. Among the most frequently infected taxa are currently: Acer campestre, Acer platanoides, Acer pseudoplatanus, Crataegus monogyna, Robinia pseudoacacia, Tilia cordata and Tilia platyphyllos. The average share of infected specimens of the above host species amounts to 34.28%. A distinctive change in frequency and infection degree was recorded in the aggregate spectrum of hosts. The presence of mistletoe was recorded in a total of 1,362 specimens (almost 12% of the trees growing in the area). Compared to 1985, the occurrence of mistletoe was newly recorded in a total of 13 families (+3), 19 genera (+5) and 42 species (+18). In Aesculus ×marylandica, Fraxinus biltmoreana, Magnolia hypoleuca ×tripetala or Malus ×moerlandsii, it was probably described for the first time ever. At the moment, the most existentially endangered taxon is Tilia cordata.


2021 ◽  
Author(s):  
Robert Reuter ◽  
Olga Ferlian ◽  
Mika Tarkka ◽  
Nico Eisenhauer ◽  
Karin Pritsch ◽  
...  

Abstract Mycorrhizal fungi play an important role for the nitrogen (N) supply of trees. The influence of different mycorrhizal types on N acquisition in tree-tree interactions is, however, not well understood, particularly with regard to the competition for growth-limiting N. We studied the effect of competition between temperate forest tree species on their inorganic and organic N acquisition in relation to their mycorrhizal type (i.e., arbuscular mycorrhiza or ectomycorrhiza). In a field experiment, we quantified net N uptake capacity from inorganic and organic N sources using 15N/13C stable isotopes for arbuscular mycorrhizal tree species (i.e., Acer pseudoplatanus L., Fraxinus excelsior L., and Prunus avium L.) as well as ectomycorrhizal tree species (i.e., Carpinus betulus L., Fagus sylvatica L., and Tilia platyphyllos Scop.). All species were grown in intra- and interspecific competition (i.e., monoculture or mixture). Our results showed that N sources were not used complementarily depending on a species´ mycorrhizal association, but their uptake rather depended on the competitor indicating species-specific effects. Generally, ammonium was preferred over glutamine and glutamine over nitrate. In conclusion, our findings suggest that inorganic and organic N acquisition of the studied temperate tree species is less regulated by mycorrhizal association, but rather by the availability of specific N sources in the soil as well as the competitive environment of different tree species.


2019 ◽  
pp. 195-202
Author(s):  
Serhii Razanov ◽  
Volodymyr Nedashkivskyi

The intensity of damaging the nectar and pollen trees of forest lands, parks and woods in the conditions of Vinnytsia region has been studied. It has been found that in the zones of the highest local overspreading of Viscum album L. on the nectar and pollen trees, the following sequence of their damage is observed, in particular, in the conditions of forest lands: Tilia cordata L.-Tilia platyphyllos L. -Acer platanoides L.- Acer tataricum L.; in the parks: Acer platanoides L.- Acer tataricum L.- Tilia cordata L.- Acer campestre L.- Tilia platyphyllos L. - Robinia pseudoacacia L.; in the woods: Robinia pseudoacacia L. - Tilia platyphyllos L. - Acer tataricum L. It depended both on the composition of the nectar and pollen trees and their number in the area of distribution of the parasite. It was found that the level of damage to the nectar-dust-bearing trees of forest lands, parks and forest strips was respectively within 11.7% - 34.6%, 28.5% - 85.5% and 38.4% - 84.8%. Characterizing the intensity of distribution of white mistletoe within the forest lands, it should be noted that damage to the Tilia cordata L. – 34,6%, Tilia platyphyllos L. – 23,5%, Acer platanoides L. and Acer tataricum L.– 25,0% and 11,7% . In the conditions of park plantations, damage to Viscum album L.: Tilia cordta– 51,6%, Tilia platyphyllos L. – 52,9%, Viscum album L. – 28,5%, Acer platanoides L. – 85,5%, Acer campestre L. – 71,4% and Acer tataricum L.– 63,6%. Analysis of the intensity of Viscum album L. distribution on the nectar-pollen-bearing trees of the forest area under the highways showed that this parasite was damaged: Tilia platyphyllos L. – 38,4%, Viscum album L. – 84%, Acer campestre L. – 42,8%. The intensity of damage to nectar-pollen was found to depend on the dominant tree species in the area of local Viscum album L. In the woodland, a greater proportion of the nectar-bearing trees were Tilia, in the park zones – Acer platanoides L. and in the forest strips -– Viscum album L., at the same time, and a larger percentage were observed of damaged trees in these species. The distribution of Viscum album L. depended not only on the breed of nectar-pollen-bearing trees, but also on the number of trees of a particular variety in the area of their local damage by this parasite.


Zootaxa ◽  
2012 ◽  
Vol 3578 (1) ◽  
pp. 43 ◽  
Author(s):  
DANIEL R. L. PYE

One new genus and four new species of eriophyoid mites from Britain are described and illustrated: Novophytoptus acu-leatus n. sp. (Phytoptidae) from Juncus squarrosus L. (Juncaceae); Tegnacus unicornutus n. gen. & n. sp. (Eriophyidae)from Carpinus betulus L. (Betulaceae); Calacarus pusillus n. sp. (Eriophyidae) from Calluna vulgaris (L.) Hull (Ericace-ae); and Brevulacus extensus n. sp. (Diptilomiopidae) from Quercus robur L. (Fagaceae). Digital micrographs are alsoprovided for each new taxon. Furthermore, 19 eriophyoid species are confirmed or recorded in Britain for the first time:one species in the family Phytoptidae, Trisetacus ehmanni Keifer from Pinus sylvestris L. (Pinaceae); 13 species belong-ing in the family Eriophyidae, Abacarus acutatus Sukhareva and Aceria eximia Sukhareva from Calamagrostis epigeios(L.) Roth (Poaceae), Acaricalus hydrophylli Keifer from Ilex aquifolium L. (Aquifoliaceae), Aceria exigua (Liro) from C.vulgaris, Acaricalus rubrifoliae Labanowski and Glyptacus fagineae Carmona from Q. robur, Aculus cytisi Labanowskifrom Cytisus scoparius (L.) (Fabaceae), Anthocoptes transitionalis Hodgkiss from Acer pseudoplatanus L. (Sapindaceae),Calepitrimerus buxi Petanović from Buxus sempervirens L. (Buxaceae), Calepitrimerus crataegi Malandraki, Petanović& Emmanouel from Crataegus monogyna Jacq. (Rosaceae), Neotegonotus fastigatus (Nalepa) from Acer campestre L.(Sapindaceae), Phyllocoptes abaenus Keifer from Prunus spinosa L., and Platyphytoptus sabinianae Keifer from Pinusnigra J.F. Arnold; five species belonging in the family Diptilomiopidae, Brevulacus reticulatus Manson from Q. robur andQuercus cerris L., Cheiracus ornatus (Farkas) from Fagus sylvatica L. (Fagaceae), Quadracus urticarius (Canestrini &Massalongo) from Urtica dioica L. (Urticaceae), Rhinophytoptus bagdasariani Shevtchenko & Pogosova from Ulmusprocera Salisb. (Ulmaceae), and Rhyncaphytoptus amplus Keifer from Acer pseudoplatanus L. Two species are also re-corded here in Britain as incursions, Tumescoptes trachycarpi Keifer on Trachycarpus fortunei (Hook.) H. Wendl. (Are-caceae) from a commercial plant nursery site, and Aceria gilloglii on Pleioblastus distichus (Mitford) Nakai[=Arundinaria pygmaea (Miq.) Asch. & Graebn. var. disticha (Mitford) C.S. Chao & Renvoize] (Poaceae) from a botan-ical garden. Collection details, distribution records and host symptoms are given for each species. The practice of publishing records solely identified from gall morphology and host association is also discussed.


2015 ◽  
Vol 112 (5) ◽  
pp. 1458-1463 ◽  
Author(s):  
Patrick J. McIntyre ◽  
James H. Thorne ◽  
Christopher R. Dolanc ◽  
Alan L. Flint ◽  
Lorraine E. Flint ◽  
...  

We document changes in forest structure between historical (1930s) and contemporary (2000s) surveys of California vegetation through comparisons of tree abundance and size across the state and within several ecoregions. Across California, tree density in forested regions increased by 30% between the two time periods, whereas forest biomass in the same regions declined, as indicated by a 19% reduction in basal area. These changes reflect a demographic shift in forest structure: larger trees (>61 cm diameter at breast height) have declined, whereas smaller trees (<30 cm) have increased. Large tree declines were found in all surveyed regions of California, whereas small tree increases were found in every region except the south and central coast. Large tree declines were more severe in areas experiencing greater increases in climatic water deficit since the 1930s, based on a hydrologic model of water balance for historical climates through the 20th century. Forest composition in California in the last century has also shifted toward increased dominance by oaks relative to pines, a pattern consistent with warming and increased water stress, and also with paleohistoric shifts in vegetation in California over the last 150,000 y.


2006 ◽  
Vol 33 (1) ◽  
pp. 59 ◽  
Author(s):  
Matthew I. Daws ◽  
Hazel Cleland ◽  
Pawel Chmielarz ◽  
Fabio Gorian ◽  
Olivier Leprince ◽  
...  

Nine seedlots of the widely planted southern and central European native tree species Acer pseudoplatanus L. were collected along a north–south gradient spanning 21° of latitude in Europe. We investigated how the heat sum during seed development influences seed maturity as assessed by physical, physiological and biochemical traits. Using principal component analysis we found predictable and consistent patterns in all traits, which correlated with heat sum. For example, compared with fruits from their native range (Italy and France, heat sum >3000°C d), fruits from the coldest location (Scotland; heat sum of 1873°C d) were shorter (c. 30 v. 42 mm), germinated over a narrower temperature range (5–20 v. 5–35°C) and had smaller embryos (28 v. > 70 mg) with a higher water content (c. 63 v. 48%), less negative solute potentials (c. –2.4 v. –4.1 MPa) and were more desiccation sensitive (critical water potential of –20.2 v. –55.4 to –60.7 MPa). The observed level of desiccation-tolerance for the French and Italian seedlots is more consistent with the intermediate category than the previous classification of A. pseudoplatanus as recalcitrant. Our results demonstrate that a lower heat sum causes fruits from northern Europe to be dispersed before maximum potential seed quality is achieved.


2020 ◽  
Vol 62 (2) ◽  
pp. 128-138
Author(s):  
Valentina P. Bessonova ◽  
Anastasia V. Sklyarenko

AbstractVegetation serves as a universal filter that is capable of protecting the environment from pollution by industrial emissions given the availability of appropriate technical facilities. The aim of this study is to determine the ability of leaves of various species of woody plants growing in the area of sanitary protection zones to accumulate fluorine and to establish the most informative indicators of environmental pollution by its compounds. The object of the study was the species of woody plants growing in the area of protective plantations of a number of enterprises of Zaporizhzhya: Zaporizhzhya Titanium & Magnesium Combine, Zaporizhzhya Aluminium Plant PJSC, Zaporizhzhya Abrasive Plant PJSC, Zaporizhstal PJSC, ‘Zaporizhcoke’ PJSC (KOKS), Zaporizhzhya Ferroalloy Plant PJSC, Zaporizhvohnetryv (‘Vohnetryv’) PJSC, PrJSC ‘Ukrgrafit’ and Zaporizhtransformator PJSC. Under the conditions of sanitary protection zones of enterprises the leaves of woody plants accumulate significantly more fluoride compared to the control specimens. We have established that a gradual accumulation of the element occurs during the vegetation period being the most intense in young leaves. In senescent leaves, the activity of its accumulation begins to diminish. The maximum amount of fluoride was detected by us at the end of the vegetation period. Its highest concentration was found in the leaves of woody plants growing in the forest belt near the Zaporizhzhya Aluminium Plant. According to the level of accumulation of the said phytotoxicant in the leaves of plants growing in the area of sanitary protection zones, industrial enterprises of Zaporizhzhya may be ranked as follows: Zaporizhzhya Aluminium Plant PJSC > Zaporizhzhya Ferroalloy Plant PJSC ≥ ‘Zaporizhcoke’ PJSC > Zaporizhstal PJSC > Zaporizhvohnetryv (‘Vohnetryv’) PJSC > ‘Ukrgrafit’ PJSC> Zaporizhzhya Abrasive Plant PJSC > Zaporizhzhya Titanium & Magnesium Combine > Zaporizhtransformator PJSC. The largest amount of fluorine accumulated by the leaves can be attributed to such tree species as: Catalpa bignonioides, Ailanthus altissima, Acer platanoides, Populus nigra, Armeniaca vulgaris, Tilia cordata, Acer pseudoplatanus, Platanus orientalis, which is a distinguishing characteristic of the sanitary protection zones of various enterprises in the city of Zaporizhzhya. Variations of fluorine accumulation in different experimental plots for the same species of woody plants are expressed in quantitative terms. These plants are capable of being the most efficient at purifying the atmospheric air from gaseous fluoride compounds. The highest coefficient of relative accumulation of fluorine in the leaves is found in the following species of woody plants: Catalpa bignonioides, Ailan-thus altissima, Acer platanoides, Populus nigra, Armeniaca vulgaris, Tilia cordata, Acer pseudoplatanus, Platanus orientalis, thus they have a potential to be considered for use as phytoindicators of environmental pollution by the fluorine compounds. The aforementioned coefficient appears to be the lowest in the following species: Morus alba, Elaeagnus angustifolia, Juglans regia and Fraxinus lanceolata.


2019 ◽  
Vol 46 (3) ◽  
pp. 256
Author(s):  
Ally K. Nkwabi ◽  
Kris Metzger ◽  
Rene Beyers ◽  
Flora Magige ◽  
Simon A. R. Mduma ◽  
...  

Context The increase in density of large tree species, Vachellia robusta and V. tortilis, in the Serengeti Ecosystem of Tanzania has resulted in a decline of small tree species Senegalia senegal, V. hockii, Commiphora spp. This change has occurred since the late 1970s, a consequence of an increase in wildebeest following the extirpation of rinderpest, which reduced the dry grass fuel for fires, resulting in low fire frequencies. Change in tree species raises the question of whether there are indirect consequences for the avifauna that depend on the large trees for food and nesting. Aims To determine how an increase in large mammals could influence diversity and distribution of avifauna communities in the Serengeti ecosystem woodlands. Methods Data used to estimate changes in density of large and small trees were measured by Point Centre Quarter (PCQ). Bird species were recorded in 19 small-tree sites and 18 large-tree sites in the Serengeti National Park. Richness of bird guilds was calculated in the two habitat complexes (small and large trees), and the ‘rarefaction’ method was used to assess the difference in richness in habitats of the study area. Mean abundance for each species was calculated over the total number of sites for each habitat and compared using the Wilcoxon Rank Sum test to examine how the abundance of avifauna changes with each habitat type. Key results There was an increase in the density of large trees in some areas in which they have replaced the original small trees. Such changes have resulted in greater richness of hole nesters and bark feeders, and a greater abundance of large-hole nesters and gleaner bird species. Conclusions Because the increase in tree density was caused by an increase in large mammals, we conclude that this increasing mammal population is indirectly increasing richness and abundance of birds using the trees. Implications Understanding the influence of large mammal populations on bird distributions has important conservation implications because the Serengeti ecosystem is classified as an important, endemic bird area.


Sign in / Sign up

Export Citation Format

Share Document