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Uporaba bioklimatskih indeksov v vinogradništvu
ID Lenič, Alen (Author), ID Črepinšek, Zalika (Mentor) More about this mentor... This link opens in a new window

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Abstract
Rast vinske trte je odvisna od talnih razmer in podnebnih dejavnikov. Različne sorte vinske trte imajo različne potrebe po toploti in vodi. Zaradi razmer, ki so značilne za posamezna območja, so se določile vinogradniške regije, ki združujejo območja z istimi ali zelo podobnimi podnebnimi razmerami. Za prikaz odnosa med rastlinami in okoljem so bili postavljeni številni bioklimatski indeksi, ki nam glede na različne vremenske spremenljivke (temperatura zraka in tal, količino padavin, trajanje sončnega obsevanja, zračno vlago) kažejo primernost posameznega pridelovalnega območja za sorte vinske trte. V nalogi so predstavljeni najpogosteje uporabljeni indeksi v vinogradništvu (Winklerjev indeks, Huglinov indeks, sušni indeks, indeks hladnih noči in bioklimatski indeks) in njihova uporabnost. Pri Winklerjev indeksu se računa vsoto efektivnih temperatur med rastno dobo vinske trte. Huglinov indeks poleg količine efektivnih temperatur zraka upošteva še maksimalne temperature med rastno dobo vinske trte. Indeks hladnih noči je osnovan na povprečni nočni temperaturi zraka med fenofazo zorenja grozdnih jagod, kar vpliva na aromo in obarvanost vina. Sušni indeks upošteva količino v tleh dostopne vode za rastlino, bioklimatski indeks pa efektivne temperature zraka, trajanje sončevega sevanja in količino padavin. Glede na vrednosti indeksov so vinogradniška območja razdeljena v več podnebnih razredov, za Winklerjev in Huglinov indeks je na osnovi teh razredov predlagan tudi sortiment vinske trte. Bioklimatski indeksi nam pomagajo pri rajonizaciji vinogradniških območij, glede na napovedane podnebne spremembe, pa lahko z njimi tudi napovedujemo spremembe pri pridelavi vinske trte v bodoče.

Language:Slovenian
Keywords:bioklimatski indeksi, vinogradništvo, podnebne spremembe
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Publisher:[A. Lenič]
Year:2020
PID:20.500.12556/RUL-120437 This link opens in a new window
UDC:551.586:634.8(043.2)
COBISS.SI-ID:29668611 This link opens in a new window
Publication date in RUL:20.09.2020
Views:1266
Downloads:307
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Secondary language

Language:English
Title:Use of bioclimate indices in viticulture
Abstract:
The growth of grapevine depends on soil and climate conditions. Different grapevine varieties have various demands for heat and water. As a result, different winegrowing regions have been formed, combining areas with the same or very similar climatic conditions. Numerous bioclimatic indices have been made to show the plant-atmosphere relationship, which determine the suitability of an individual producing region for grapevine varieties according to various weather variables (air and soil temperature, precipitation, sun radiation, air humidity). This thesis presents most frequently used bioclimatic indices in viticulture (Winkler index, Huglin index, dryness index, cold night index and bioclimatic index) and their applicability. The Winkler index calculates the sum of effective temperatures during the grapevine growing season. In addition to the amount of effective temperatures, Huglin index also takes into account maximum temperatures during the grapevine growing season. The cold nights index is based on the average night temperature during the ripening of grape berries affecting the wine aromas and colour. Dryness index gives the amount of water available in the soil for the plant, and the bioclimatic index takes into account the effective temperatures, solar radiation and precipitation. According to the values of the indices, winegrowing areas are divided into several climate classes, and for the Winkler and Huglin, an grapevine assortment is also proposed on the basis of these classes. Bioclimatic indices help us in the regionalization of winegrowing areas, and according to the forecasted climate changes, we can also use them to predict changes in the grape growing the future.

Keywords:bioclimatic indices, viticulture, climate change

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