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Meritve in analiza prestreženih padavin navadne breze (Betula pendula Roth.) in rdečega bora (Pinus sylvestris L.) v urbanem okolju
Verstovšek, Martin (Author), Vavpotič, Damjan (Mentor) More about this mentor... This link opens in a new window, Šraj, Mojca (Author), Lah, Aleš (Author), Brilly, Mitja (Author)

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Abstract
Študija prikazuje meritve, primerjavo in analizo prestreženih padavin iglastih in listnatih dreves. Meritve so se izvajale na raziskovalni ploskvi v urbanem predelu mesta Ljubljane in sicer na dveh skupinah dreves: navadne breze (Betula pendula) in rdečega bora (Pinus sylvestris). Analize in primerjave prepuščenih padavin in odtoka po deblu so narejene za obdobje od junija 2004 do decembra 2006, ki je bilo razdeljeno na štiri vegetacijska obdobja. Padavine nad drevesnimi krošnjami so se merile z ombrografom z avtomatskim zapisovanjem rezultatov na vsakih 10 minut ter s Helmanovim dežemerom z ročnim odčitavanjem za kontrolo. Prepuščene padavine so se merile s kombinacijo stalnih (korita) in pomičnih merilcev (totalizatorji) z avtomatskim zapisovanjem na 10 minut in ročnim odčitavanjem. Odtok po deblu se je meril ročno na po enem drevesu vsake vrste. Rezultati meritev so pokazali, da breze prepustijo 57-70 %, bori pa 35-49 % padavin, kar je primerljivo z rezultati drugih podobnih študij po svetu. Odtok po deblu je bil pri brezi 1,1-6,7 % padlih padavin in pri boru praktično zanemarljiv.

Language:Unknown
Keywords:prestrežene padavine, breza, bor, prepuščene padavine, odtok po deblu
Work type:Not categorized (r6)
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2008
Publisher:Zveza gozdarskih društev Slovenije
Number of pages:406-416
Numbering:9
ISSN:0017-2723
Views:1113
Downloads:330
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Secondary language

Language:Unknown
Title:Measurements and Analysis of Intercepted Precipitation of Silver Birch (Betula pendula Roth.) and Scots Pine (Pinus sylvestris L.) in Urban Area
Abstract:
Study presents measurements, comparation and analysis of intercepted precipitation of coniferous and deciduous trees. Measurements were made on experimental plot in the urban part of the city Ljubljana on two groups of trees: Betula pendula and Pinus sylvestris. Analyses and comparations of throughfall and stemflow were made for the period from June 2004 till December 2006 which was devided onto four vegetation periods. Rainfall above the canopy was measured automatically with a tipping bucket rain gauge with digital recording of results every 10 minutes in combination with manual Helman's rain gauge for control. Throughfall was measured using a combination of fixed gauges with digital recording of results every 10 minutes and manual roving gauges. Stemflow was measured manually on one tree of each specie. The results of the measurements showed that the throughfall for Betula pendula was 57-70 % of precipitation and for Pinus sylvestris 35-49 % which is comparable with the results of other similar studies around the world. The stemflow fraction for Betula pendula amounted 1,1-6,7 % of precipitation and it was practically negligible for Pinus sylvestris.

Keywords:rainfall interception, Betula pendula, Pinus sylvestris, throughfall, stemflow

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