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Wyświetlanie 1-4 z 4
Tytuł:
Wpływ mechanicznego przygotowania gleby na zrębie na jej cechy
Effect of mechanical site preparation on features of the soil in a clear-cut area
Autorzy:
Aleksandrowicz-Trzcińska, M.
Drozdowski, S.
Żybura, H.
Powiązania:
https://bibliotekanauki.pl/articles/986611.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
zreby
przygotowanie gleby
zabiegi mechaniczne
maszyny lesne
plug LPZ
plug aktywny jednotalerzowy
frez lesny
gleby lesne
wlasciwosci fizyczne
wlasciwosci chemiczne
forest plough
active plough
forest mill
soil scarification
clear−cut
Opis:
In most cases, mechanical site preparation (MSP) is a precondition if high−quality (natural or artificial) regeneration of forests is to be achieved. However, the measures involved here may differ in terms of the level of intervention of the soil environment, at both the surface and deeper down. The choice of MSP methods should be based on climatic conditions, site type and the species whose renewal is sought, while the effect should improve conditions for the emergence and growth of the young generation of trees, with the influence on the soil environment being limited as far as possible. The research sought to compare physical and chemical features of the soils of the microhabitats created in clear−cut areas as a result of MSP using either an LPz double mould−board forest plough (furrow and ridge), an active plough (furrow and ridge) and a forest mill (belt and beyond the belt) as compared with unscarified soil. Investigated physical features included grain size (content of sand, silt and clay), bulk density and actual moisture, while the chemical ones: pHH2O and pHKCl, exchangeable acidity, total content of N and C and the C/N ratio, P2O5 content and base cations Mg2+, Ca2+, K+ and Na+. The most invasive MSP method for the soil environment is the active plough, which leaves the ridge exposed to processes of the decomposition of organic matter (and the highest content of N, C, Mg2+, Ca2+ and K+). Equally, this method may pose the greatest threat of mineral components of the soil being leached, with impoverishment of the habitat ensuing. The forest mill in turn offers the least invasive MSP. Most of the physical and chemical features of soil (other than exchangeable acidity and pHH2O and pHKCl) both in the belt areas and beyond them differed little from the those characterising non−scarified soil. Also the analysed features determined for the furrows ploughed by the active or LPz ploughs or the belt prepared using the forest mill did not differ significantly.
Źródło:
Sylwan; 2018, 162, 08; 648-657
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ przygotowania gleby frezem leśnym na wzrost sadzonek sosny zwyczajnej w warunkach ubogich siedlisk Puszczy Bydgoskiej
Impact of soil preparation with rotary tiller on growth of Scots pine plants on poor sites of the Bydgoszcz Forest
Autorzy:
Sewerniak, P.
Gonet, S.S.
Quaium, M.
Powiązania:
https://bibliotekanauki.pl/articles/1005970.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
gleby lesne
przygotowanie gleby
frezarka lesna
plug LPZ
uprawy lesne
uprawy sosnowe
udatnosc uprawy
sadzonki
sosna zwyczajna
Pinus sylvestris
wzrost roslin
Puszcza Bydgoska
soil preparation
rotary tiller
scots pine
the bydgoszcz forest
Opis:
The study was conducted in the Bydgoszcz Forest (Cierpiszewo Forest District) in the area of the lowest precipitation in Poland. In 4 plots (3 of rotary tiller and 1 – the comparative one – of plough soil preparation) measurement of Scots pines (Pinus sylvestris L.) and dry biomass of ground vegetation as well as soil investigations were performed. The best height and radial increment of pines were stated in the comparative plot (the soil cultivated by a plough) in spite of the distinct lowest of all plots soil moisture and nutrient stocks occurring there. The differences in plant growth can be explained by much more effective reduction of competition of ground vegetation in young plantations by a mouldboard plough than by a tiller. The results can also be explained by occurrence of unfavourable water conditions in rows prepared by a tiller during dry periods. The soil material in the rows is enriched in organic matter that results in increasing water repellence when it is dried. Rotary tiller should be recommended for soil preparation in the study area but on condition of successful ground vegetation removal from young pine plantations in some first years after planting.
Źródło:
Sylwan; 2012, 156, 11; 871-880
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ sposobu przygotowania gleby na dynamikę jej warunków wodnych na wydmach Kotliny Toruńskiej
Effect of site preparation method on dynamics of soil water conditions on inland dunes of the Torun Basin
Autorzy:
Sewerniak, P.
Stelter, P.
Bednarek, R.
Powiązania:
https://bibliotekanauki.pl/articles/987135.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Kotlina Torunska
wydmy srodladowe
uprawy lesne
rzezba terenu
przygotowanie gleby
plug LPZ-75
frez lesny
gleby bielicowe
zawartosc wegla organicznego
higroskopijnosc
wilgotnosc gleby
warunki wodne
zapas wody w gruncie
soil
site preparation
forest site
inland dunes
topography
podzols
dry areas
Opis:
The research was conducted in a young Scots pine (Pinus sylvestris) plantation located in a dune area of the Toruń Basin (N Poland). The aim of the study was to investigate differences in dynamics of soil water conditions followed different method used for site preparation. The three plots were investigated in the study: belt of soil prepared by a mill, north−facing slope of a dune (FR−N), belt of soil prepared with a mill, south−facing slope of a dune (FR−S) and soil prepared with a plough (furrows) on the ridge of a small aeolian mound (LPZ). On each plot soil samples were taken and soil moisture was regularly measured from April to December of 2013 (the TDR method). The measurements of soil moisture were taken at four depths (3, 10, 25 and 50 cm) at intervals of ca. 2 weeks. Additionally, soil moisture was also measured on 25.08.2015. It was done to determine soil water conditions for a deep summer drought (the measurements were taken twice this day – just before and after rain which turned to be the first since ca. a month). Reserves of soil moisture and shares of water unavailable to plants were calculated for every measure day for each study plot. As a result of higher organic carbon content, values of soil actual moisture as well as reserves of soil moisture were almost regularly higher for belts mixed with a mill than for furrows prepared with a plough (fig. 1, 3). Opposite relation was found, however for the summer drought (tab. 2). This was explained by the higher repellence of rich in organic mater, dried material occurring in belts. On 25.08.2015 much lower improvement of water conditions after rain was also stated for this material than for topsoil in LPZ. Unfavoured soil water conditions for plants occurring in belts in dry periods could explain relatively low dynamics of pine growth revealed for the variant of soil preparation in a previous study. However, it was concluded that a forest mill should be recommended for forestry, because the device much less disturbs topsoil than a plough. Besides, differences in growth parameters of pines followed different methods of soil preparation used before planting decline in next years of a stand growth.
Źródło:
Sylwan; 2017, 161, 01; 52-61
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ sposobu przygotowania gleby na dynamikę jej temperatury na wydmach Kotliny Toruńskiej
Effect of site preparation method on dynamics of soil temperature on inland dunes of the Torun Basin
Autorzy:
Sewerniak, P.
Stelter, P.
Powiązania:
https://bibliotekanauki.pl/articles/989413.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
Kotlina Torunska
wydmy srodladowe
uprawy lesne
rzezba terenu
przygotowanie gleby
plug LPZ-75
frez lesny
gleby bielicowe
gestosc objetosciowa
porowatosc
wilgotnosc gleby
zawartosc materii organicznej
temperatura gleb
dynamika temperatury
pojemnosc cieplna
soil
thermal conditions
site preparation
inland dunes
topography
podzols
dry areas
Opis:
The objective of the study was to determine the dynamics of soil temperature on inland dunes in the Toruń Basin (N Poland) with reference to the two methods of site preparation: homogenization of belts with a forest mill (FR) and preparation of trenches with a double−mouldboard plough LPZ−75 (LPZ). The study was conducted in a young Scots pine (Pinus sylvestris) plantation on plots with soil prepared by a forest mill on north− and south−facing slopes of a dune (FR−N and FR−S respectively) and with soil prepared with a plough on the ridge of a small aeolian mound (LPZ). On each plot a soil pit was dug and soil samples were taken from distinguished horizons for laboratory analyses. Besides, from April to December of 2013, at interval of ca. two weeks, soil temperature was measured at the depths of 3, 10, 25 and 50 cm. To estimate daily amplitudes of temperature in topsoil on the studied plots, in a sunny summer day (23.08.2013) the temperature was additionally measured from 5 a.m. to 9 p.m. with an hourly interval. These measurements were taken at the two upper depths (3 and 10 cm). Despite the fact that soil surface was distinctly darker for belts prepared with a mill than in trenches prepared by a plough, soil temperatures were almost regularly lower in FR−N and in FR−S than in LPZ. This concerns all the investigated depths. The differences were explained by much higher moisture of soil material in belts what involves higher thermal capacity and with that slower heat of a soil, as well as causes higher losses of thermal energy for evaporation. Another agent explaining this was indicated to be related to high porosity of materials found in the belts. Namely, especially in dry periods, high volume of soil pores are filled on the FR plots with air what impedes heat transfer in a soil. It was concluded that stated in a previous study worse growth of pines planted in milled belts than in tranches prepared with a plough was unlikely related to differences in soil thermal conditions. Thus, differences in growth dynamics of young pines in plots with site prepared by the two studied methods are caused by other reasons rather as primarily other competitive impact of weeds and differences in soil water conditions occurring at root system of young trees.
Źródło:
Sylwan; 2016, 160, 11; 923-932
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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