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    Wyświetlanie 1-7 z 7
    Tytuł:
    Erosion processes initialized by use of heavy equipment in mountain forests of the Wilczy Potok catchment, Silesian Beskids
    Procesy erozji zapoczątkowane przez użycie ciężkiego sprzętu w górskich lasach zlewni Wilczego Potoku w Beskidzie Śląskim
    Autorzy:
    Łukasik, W.
    Kubiesa, P.
    Staszewski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/205475.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mountain forest
    skidding
    soil erosion
    erosion gullies
    forest management
    las górski
    zrywka drewna
    erozja gleby
    rynna erozyjna
    gospodarka leśna
    Opis:
    Forest stand decomposition of the Silesian Beskids which is followed by the tree cutting has been observed since the beginning of the 21st century. Changes in forest management due to the introduction of heavy machines for forest work mainly for skidding have been observed in the Silesian Beskids for the last decade. The paper presents results of a three-year investigation of erosion gullies forming in mountain forest after the skidding performed with use of heavy equipment. In the Wilczy Potok catchment comprising an area of above 100 ha 40 gullies were identified. The measurement of the length and depth of gullies showed that the total volume of soil and rock material removed from the catchment area due to erosion accelerated by skidding exceeded 9 000 m3. The year erosion rate for deep gullies was found to be 10%. The presented results show that necessary protective actions and preventive measures should be taken to mitigate the soil degradation processes.
    W ciągu ostatniej dekady, w Beskidzie Śląskim, zaobserwowano zmiany w gospodarce leśnej spowodowane wprowadzeniem ciężkiego sprzętu do prac leśnych, głównie do zrywki drewna. W artykule przedstawiono wyniki trzech lat badań rynien erozyjnych powstających w lesie górskim po zrywce wykonanej przy stosowaniu ciężkiego sprzętu. W zlewni Wilczego Potoku, o powierzchni powyżej 100 ha zinwentaryzowano 40 rynien erozyjnych. Pomiar długości i głębokości wąwozy wykazały, że całkowita objętość gleby i materiału skalnego usuniętego ze zlewni w wyniku erozji – przyspieszonej przez prace zrywkowe – wynosi ponad 9 000 m3. Roczne tempo erozji rynien zrywkowych wynosi 10%. Przedstawione wyniki pokazują, że niezbędne jest podjęcie działań ochronnych i zastosowanie środków zapobiegawczych w celu ograniczenia procesów degradacji gleby.
    Źródło:
    Archives of Environmental Protection; 2016, 42, 1; 80-86
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution and development of gullies in Southern East Siberia (Russia)
    Autorzy:
    Ryzhov, Y. V.
    Kobylkin, D. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/295172.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    gully erosion
    degree of frequency and density of gullies
    south of East Siberia
    gully development
    Opis:
    Large catchment basins (the Yenisei, Angara, Lena, Selenga, and Amur) within southern East Siberia are characterized by weak gully dissection, and by a very uneven distribution of gullies.The varied natural conditions, combined with anthropogenic impacts, produce a highly mosaic pattern in the spatial distribution of gullies.For the last 230-300 years, four intensification stages of gully erosion were identified, which were associated with periods of abrupt changes in nature management.The growth rates of the gully heads in different areas of southern East Siberia vary from 0.1 to 26 m yr-1, the mean long-term linear growth rates of gullies are 0.5–2.5 m yr-1.Extreme meteorological phenomena: torrential rains (over 30 mm hr-1), abundant rains (over 50 mm day-1), and rapid snow thawing in the spring are responsible for gullying.
    Źródło:
    Landform Analysis; 2011, 17; 155-159
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geomorphic dynamics of gullies developed in sandy slopes of Central Spain
    Autorzy:
    Lucía, A.
    Martín-Duque, J. F.
    Laronne, J. B.
    Sanz-Santos, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/294675.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    sand
    gullies
    Terrestrial Laser Scanner (TLS)
    Reid bedload sampler
    erosion-runoff plots
    Spain
    Opis:
    Gullies developed on sandy lithologies are scarce. Such landforms have developed in the sandy deposits of the Cretaceous 'Utrillas' facies within the Segovia province of Central Spain. They appear at the slopes of a group of mesas and cuestas located at the edge of the northern piedmont of the Guadarrama Mountains of the Spanish Central System. The activity of the different geomorphic processes acting in these gullies, as well as their connectivity, are being characterized and quantified. This study was preceded by reconnaissance methods, whereas presently technologically advanced and more accurate techniques are being utilized. The new methods are applied in an experimental catchment (1.26 ha). They include: i) an automatic Reid-type (formerly termed Birkbeck) slot bedload sampler for continuous monitoring of bedload flux and for continuous sampling of bedload; siphons for sampling the suspended load; and a Parshall flume to monitor water discharge. Jointly, these instruments allow to study the fluvial dynamics at the catchment mouth; ii) topographic surveys undertaken by a Terrestrial Laser Scanner (TLS) to quantify the activity of gravitational, overland flow and fluvial processes in different sediment source areas within the gully basin; iii) micro runoff and erosion plots to monitor the infiltration and erosive response of different Hydrologic Response Units (HRU) comprising the interior of the catchment. This ensemble of novel methods has started providing patterns of sediment movement within the gully system.
    Źródło:
    Landform Analysis; 2011, 17; 91-97
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gullies development in afforested slopes in Southeastern Spain
    Autorzy:
    Ruiz-Sinoga, J. D.
    Romero-Díaz, A.
    Belmonte-Serrato, F.
    Alonso-Sarría, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/295162.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    afforestation
    gullies
    erosion rates
    marls
    semi-arid region
    Spain
    Opis:
    In semiarid regions, the main purpose of afforestation has been to provide a protective vegetative cover in order to prevent or reduce soil erosion. This paper shows the results of a study carried out in some areas afforested in the 1970s, in steep slopes and mostly in marls. Afforestation where performed using terraced with subsoiling, so the existing scrub vegetation was removed and Pinus halepensis was planted. The main conclusion is that human action developed in this semi-arid territory, perhaps because the technique applied was not the most suitable for afforestation, has led to the geomorphological activation of the slopes and the emergence and large development of gullies.
    Źródło:
    Landform Analysis; 2011, 17; 173-176
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sediment transport along the gullies in flysch badlands : an example from SW Slovenia
    Autorzy:
    Zorn, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/295196.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    badlands
    gullies
    erosion processes
    flysch
    Istria
    Slovenia
    Opis:
    Sediment transport along erosion gullies in flysch badlands under Sub-Mediterranean climate is presented. Presented are weekly measurements, compiled measurements by months, as well as correlations of sediment transport with selected weather data. Sediment transport was measured up to 19 kg m-2 and was largely dependent on special weather conditions.
    Źródło:
    Landform Analysis; 2011, 17; 229-235
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The development of ephemeral gullies in cultivated areas of Wiśnicz Foothills, Poland
    Autorzy:
    Święchowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/295200.pdf
    Data publikacji:
    2011
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    ephemeral gullies
    rill erosion
    soil erosion
    Wiśnicz Foothills
    Polska
    Opis:
    Ephemeral gullies most frequently form and develop on cultivated slopes in natural drainage lines or they are associated with man-made agricultural activities like field borders, furrows, tractor traces and cart roads. The paper presents the results of ephemeral gullies studies carried out in hydrological years 1998-2009 on cultivated slopes in the Wiśnicz Foothills. Ephemeral gullies usually form and develop during single rain or several subsequent rains of high erosivity (of several hundred MJ mm ha-1 h -1) on long cultivated slopes, particularly at the beginning of vegetation period, when most slopes are devoid of vegetation cover or plants are in the inicial stage of growth.
    Źródło:
    Landform Analysis; 2011, 17; 209-214
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Erozja wąwozowa zapisana w odsłanianych korzeniach drzew na Wysoczyźnie Proboszczowickiej pod Górą Św. Anny
    Gully erosion recorded in anatomical changes in exposed roots in permanent gullies (southern Poland)
    Autorzy:
    Malik, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074442.pdf
    Data publikacji:
    2006
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    erozja wąwozowa
    intensywność erozji
    analiza dendrologiczna korzeni
    datowanie epizodów erozyjnych
    permanent gullies
    gully erosion
    exposed roots
    tree rings
    extreme rainfall events
    Opis:
    Erosion occurs in permanent gullies cutting into the undulating loess plateau in southern Poland. The gully slopes are mainly vegetated with beech trees as opposed to the surface of the plateau summit, which is cultivated agricultural land, devoid of forests for at least 18 centuries [od 18 wieków czy od XVIII wieku – czyli “since 1700s”?]. Beech roots are exposed in the gullies through erosion. Wood cells in the tree rings divide into early wood and late wood and, after the roots are exposed, also start to make fewer cells. In the roots on the border between exposed and unexposed tree rings in the tree roots, scars sometimes occur. This is an effect produced by corrasion by dolomites and limestones lying under the loess cover and re-deposition of building material stored by people in the higher part of the gullies. These anatomical changes in root tree rings allow one to date erosion episodes. Dating of the exposure of roots indicates that intensive erosion took place in the gullies starting in the 1980s. Since that time, numerous extreme rainfall events responsible for initiating erosion have also occurred. They contribute to deepening valleys causing new incisions to develop on hillslopes and headcut retreat in upper parts of the valleys studied at theWysoczyna Proboszczowicka near Góra św. Anny. The bottom of the valley head eroded during extreme rainfall events in 1984 and 1991. Erosion here alternates with deposition, its speed being relatively small. Incisions in hill slopes retreated during the flood in 1997, but they originated during earlier rainfall episodes. Such incisions retreat 2.5–3 m/year, i.e., relatively fast.
    Źródło:
    Przegląd Geologiczny; 2006, 54, 4; 326-332
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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