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Analiza stanja lišajev v popisu stanja gozdov v letu 2007
Batič, Franc (Author), Kastelec, Damijana (Author), Skudnik, Mitja (Author), Kovač, Marko (Author)

URLURL - Presentation file, Visit http://www.dlib.si/details/URN:NBN:SI:doc-CYUXOQDE This link opens in a new window

Abstract
Obrast epifitskih skorjastih, listastih in grmičastih lišajev je bila popisana v okviru standardizirane mreže na izbranem številu primerljivih drevesnih vrst na ploskvah popisa stanja gozdov leta 2007. Prikazana je pokrovnost skorjastih, listastih in grmičastih lišajev kot mediana pokrovnosti za vse skupine drevesnih vrst in pokrovnost skorjastih lišajev za bukev in listastih za smreko po razredih pokrovnosti. Na splošno je obrast slaba; največja je pri skorjastih lišajih in najslabša pri grmičastih. Ploskve z večjo lišajsko obrastjo so predvsem na območjih, oddaljenih od virov onesnaženja zraka. Ploskve s slabo obrastjo so na območjih, kjer je večji vpliv lokalnega onesnaženja ali daljinskega vnosa zračnih onesnažil. Lišajska obrast vseh treh rastnih tipov se veča s starostjo sestoja, preostali sestojni parametri pa tudi rastiščni značilno ne vplivajo na obrast. Dokaj slaba obrast gozdnega drevja z epifitskimi lišaji je še vedno posledica zračnega onesnaženja, kljub sanaciji večjih emitentov žveplovih spojin. Vzrok je verjetno še vedno veliko onesnaženje z dušikovimi spojinami iz prometa, termoenergetskih in industrijskih virov, kmetijstva in drugih virov. V določenem obsegu je slabše stanje epifitske lišajske obrasti tudi posledica uporabljene metode, v kateri je popis lišajev narejen le na spodnjem delu debla dreves, kjer svetlobne razmere pogosto niso ugodne za rast lišajev.

Language:Slovenian
Keywords:gozdovi, popis stanja, gozdna inventura, epifitski lišaji, bioindikatorji, onesnaženje zraka, Slovenija
Work type:Scientific work (r2)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2011
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije
Number of pages:str. 312-321
Numbering:Letn. 69, št. 5/6
UDC:630*17:630*52"2007"(497.4)(045)=163.6
ISSN on article:0017-2723
COBISS.SI-ID:3158694 Link is opened in a new window
Views:432
Downloads:192
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Record is a part of a journal

Title:Gozdarski vestnik
Shortened title:Gozd. vestn.
Publisher:Zveza gozdarskih društev Slovenije
ISSN:0017-2723
COBISS.SI-ID:3736834 This link opens in a new window

Secondary language

Language:English
Title:Analysis of epiphytic lichen vegetation in forest inventory carried out in 2007
Abstract:
Epiphytic lichen cover of crustose, foliose and fructicose lichens has been assessed within the standardized grid laid on trunks of the chosen, comparable tree species on the plots of forest inventory in 2007. Median cover of crustose, foliose and fructicose epiphytic lichens are presented in grouped analyses for all trees. The cover of crustose lichens is presented additionally for common beech and the cover of foliose lichens for Norway spruce. Generally, the epiphytic lichen cover is poor, the richest is the cover of crustose and the poorest is the cover offructicose lichens. Plots with major lichen cover are situated in remote areas with cleaner air while plots with minor epiphytic lichen cover are situated in areas affected by local sources of air pollution, some also in areas where transboundary input of air pollutants takes place. Epiphytic lichen cover increases slightly with the age of the forests stands, other stand and site parameters have no major influence. In spite of the reduction of air pollution by sulphur compounds in the last two decades in Slovenia the epiphytic lichens cover in forests remains poor. The most probable reason is the persisting air pollution by nitrogen compounds from traffic, thermal power plants, industry, agriculture and other sources. The worsened state of the epiphytic lichen cover is, to a certain extent, also the consequence of themonitoring method in which the epiphytic lichens are assessed only in the lower part of tree trunks where light conditions are not always suitablefor their growth.


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