Arhivi avtorja: Katarina Flajšman

Sledovi poledenitve v dolini Krnice

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Vabljeni na predavanje z naslovom: Sledovi poledenitve v dolini Krnice, ki bo v petek, 11.12.2020 ob 10.00 na Zoom povezavi: https://zoom.us/j/97361590435?pwd=WHJJa1o0djRZemV2S0Rxb0JXd0lJUT09

Pleistocen predstavlja obdobje v geološki zgodovini, v katerem se je zgodila tudi zadnja ledena doba. Tako je bilo tudi na območju naših Julijskih Alp, o čemer pričajo ledeniške krnice in številni ledeniški morenski nasipi, ki so ponekod bolje, drugod nekoliko slabše ohranjeni. Enega lepših primerov ledeniško preoblikovane doline predstavlja tudi dolina Krnica, ki je bila v zadnjih 20.000 letih večkrat poledenela. Led je v določenem obdobju dosegel debelino tudi do 100 m. Najverjetneje pa bo del ledene preteklosti za vedno ostal ohranjen pod debelo plastjo grušča tik pod Kriško steno.

Predavala bo Erika Kozamernik.

The impact of agricultural land use on soil properties and fungal community response to drought conditions

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Vabljeni na predavanje z naslovom: The impact of agricultural land use on soil properties and fungal community response to drought conditions, ki bo v sredo 27.11.2019 ob 11.00 v veliki dvorani GIS.

»Conventional arable management leads to changes in soil water/nutrient retention and yields through compaction, reduced carbon sequestration, and loss of microbial diversity and abundance. Degraded soils are less resilient to perturbation including droughts, which are projected to increase in frequency and severity. Restoring soils through implementing grass-clover ley (long-term uncropped fallow) has been shown to increase organic carbon and crop yields, though little work has looked at the effects on microbial diversity or stress response. Thereby the aim of this research was was to investigate the role of arable extensification and ecological intensification in promoting soil ecosystem services related to water retention and crop performance under future climate conditions.«

Predaval bo Philip Brailey-Jones. Predavanje bo v angleščini!

Soil respiration in forest ecosystems

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Vabljeni na predavanje z naslovom Soil respiration in forest ecosystems, ki bo v ponedeljek, 14.10.2019 ob 11.00 v veliki dvorani GIS.

Forests represent the largest terrestrial carbon stock and the potential of forest management to increase carbon sequestration in terrestrial ecosystems, which is an area of intensive research. Research is focused on soil as a long-term carbon stock but sensitive to disturbances.

Carbon enters the ecosystem by assimilation of atmospheric CO2 by green parts of plants and gets into soil mainly through roots and plant litter. Soil respiration, on the contrary, represents the major carbon loss from the soil and even the whole ecosystem. The presentation will introduce soil respiration as a part of forest carbon cycle, its components, drivers and measuring systems. Moreover, examples of the results on soil respiration in forest ecosystems and the effect of forest management will be presented based on the presenter’s research.

Predavala bo dr. Eva Darenova. Predavanje bo v angleščini!

Antagonizem med glivo Eutypella parasitica in izbranimi vrstami gliv v lesu odmrlih vej gorskega javorja

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Vabjeni na predavanje z naslovom Antagonizem med glivo Eutypella parasitica in izbranimi vrstami gliv v lesu odmrlih vej gorskega javorja, ki bo v ponedeljek, 23.9.2019 ob 12.00 v veliki dvorani GIS.

Eutypella parasitica R. W. Davidson & R. C. Lorenz je tujerodna vrsta glive, ki so jo odkrili in opisali v Severni Ameriki. V Evropi je bila prvič najdena ravno v Sloveniji. Gre za slabo raziskano vrsto, ki povzroči razvoj navadno pravilne eliptične rane, obarvanje lesa in njegovo trohnenje. Okužbe so relativno maloštevilne, kar lahko pripišemo vsaj dvema razlogoma – način izmetavanja askospor in tekmovanje z ostalimi vrstami gliv, ki se pojavljajo v odmrlih vejah javorjev.

V predavanju bodo predstavljene metode treh raziskav o E. parasitica in nekaj preliminarnih rezultatov poskusov, ki jih izvajamo na tej vrsti.

Predavala bo Ana Brglez.

Strokovna ekskurzija na Kitajsko

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Vabljeni na predavanje: Strokovna ekskurzija na Kitajsko, ki bo v petek 07.06.2019 ob 9.00 v veliki dvorani GIS.

Kaja Kandare (ZGS), Anica Simčič (GIS) in Dejan Pfeifer (Studio Drevo) smo se udeležili seminarja z naslovom »Seminar on capacity building in forestry international cooperation for developing countries«, ki je trajal od 9.4. – 29.4. 2019.  Seminar je potekal v Pekingu, terenski ogledi pa v provinci Zheijang. Cilji seminarja so bili krepitev sodelovanja med Kitajsko in državami udeleženkami, učenje o dobrih praksah Kitajske v boju s podnebnimi spremembami, predstavitev lesnopredelovalne industrije na Kitajskem, trajnostno gospodarjenje z gozdovi, naravna obnova gozdov in gospodarjenje s hitro rastočimi vrstami. S predavanjem želiva na kratko predstaviti vsebine seminarja in življenje na Kitajskem, kot sva ga doživeli v treh tednih aprila.

Predavali bosta Kaja Kandare in Anica Simčič.

 

Studies and perspectives of edible ectomycorrhizal fungi in Brazil

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Vabljeni na predavanje z naslovom: Studies and perspectives of edible ectomycorrhizal fungi in Brazil, ki bo v torek, 28.5.2019 ob 12.00 v veliki dvorani na Gozdarskem inštitutu Slovenije.

The diversity and distribution of ectomycorrhizal fungi are unknown in Brazil, especially edible mushrooms. Recently, a new specie of Tuber was found associated with Carya illinoinensis (Wangenh.) K. Koch, in Southern Brazil. The first record of true truffles occurring in Brazil proves the possibility to cultivate pecan with truffles and stimulates novelty studies in this area. Therefore, my thesis project aims to respond (1) if European truffles can establish a symbiotic relationship with pecan in Neotropical conditions, and improve the growth of different varieties of pecan seedlings; (2) if truffles can establish a symbiotic relationship with Brazilian native forest species and exotic species; and finally (3) to investigate the distribution and diversity of ectomycorrhizal fungi in pecan orchards. The opportunity to visit the Slovenian Forestry Institute, funding by the International Union of Forest Research Organizations (IUFRO) and the European Forest Institute (EFI), it will contribute on knowledge about the potential and challenges of edible ectomycorrhizal fungi in Brazil. 

 Predavala bo Joice Aline Freiberg. Predavanje bo v angleščini.

The Physiological and Molecular Responses of Populus Species to Cadmium and Sustainable forest management in China

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Vabljeni na predavanji z naslovoma: The Physiological and Molecular Responses of Populus Species to Cadmium in Sustainable forest management in China, ki bosta v petek, 12.4.2019 ob 10.00 v veliki dvorani na Gozdarskem inštitutut Slovenije.

Povzetek predavanja The Physiological and Molecular Responses of Populus Species to Cadmium:

In China, soil in some regions is seriously contaminated by cadmium (Cd) which is a toxic and non-essential element for most organisms. Phytoremediation is an effective and environment friendly approach to reduce Cd pollution in soil. Populus species are fast growing woody plants and ideal candidates for phytoremediation of Cd-contaminated soil. In this talk, the selection of proper poplar genotypes for remediating Cd-contaminated soil, the physiological and molecular mechanisms will be presented of selected poplar genotype in response to Cd accumulation.

 Povzetek predavanja Sustainable forest management in China:

The presentation on “Sustainable Forest Management in China” will briefly introduce the International initiatives on Criteria and Indicators for sustainable forest management, especially in most European countries and China. The significance of using C&I framework to report national progress toward sustainable forest management will also be discussed. Finally, some suggestions will be presented about the possible cooperation options between 16 European countries and China.

Predavala bosta prof. Zhi-Bin Luo in prof. Jing-Pin Lei iz Kitajske akademije za gozdarstvo. Predavanja bosta v angleščini.

Vplivi gospodarjenja na funkcionalne lastnosti gozdne vegetacije in ekološke razmere v dinarskih jelovo-bukovih gozdovih Slovenije

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Vabljeni na predavanje z naslovom: Vplivi gospodarjenja na funkcionalne lastnosti gozdne vegetacije in ekološke razmere v dinarskih jelovo-bukovih gozdovih Slovenije, ki bo v četrtek, 28.3.2019 ob 10.00 v veliki dvorani GIS.

Kako različna intenziteta poseka dreves vpliva na funkcionalno sestavo in pestrost pritalne gozdne vegetacije in kakšno vlogo imajo pri tem funkcionalne lastnosti rastlinskih vrst? Kakšne so razlike v ekoloških razmerah (mikroklima, tla) med gozdnim sestojem in sestojnimi vrzelmi? V predavanju bo predstavljen pomen funkcionalnih pristopov (koncept funkcionalnih znakov rastlin ter rastlinskih funkcionalnih tipov) pri analizi sprememb in dinamike vegetacije. Pojasnili pa bomo tudi dosedanje rezultate naše raziskave, ki obravnava naravovarstveno (Natura 2000) pomemben gozdni habitatni tip v Sloveniji.

Predaval bo Janez Kermavnar.

Inventura gozda

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Vabljeni na predavanje z naslovom: Inventura gozda, ki bo v torek, 26. 2. 2019 ob 10.00 v veliki dvorani GIS.

Za oceno stanja gozdov se na terenu zbirajo podatki o rastiščih, gozdnih sestojih in dendrometrijskih znakih živega in odmrlega drevja. V okviru tega sistema je bil na GISu vzpostavljen sistem gozdne inventure (NGI), ki na državni ravni zagotavlja časovno in prostorsko opredeljene podatke o stanju gozdov z znano statistično zanesljivostjo. V letu 2018 smo na mreži 4 x 4 km izvedli četrto ponovitev nacionalne gozdne inventure in pridobljeni podatki kažejo na velike spremembe v slovenskih gozdovih. Prvič od leta 2000, ko je bila izvedena prva, se je lesna zaloga v gozdovih znižala in sicer iz 334 m3/ha v letu 2012 na 331 m3/ha. V zadnjem obdobju se je posek povečal za 50% in sicer iz 4 na 6 m3/ha leto in volumen mrtvih dreves iz 4 na 13 m3/ha.

Predaval bo dr. Mitja Skudnik.