Razširjenost izbranih invazivnih tujerodnih vrst rastlin v obrežnem pasu reke Rižane

Abstract

Keywords

Data

Language:	Slovenian
Year of publishing:	2013
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[T. Lipičar]
UDC:	581.96(043.2)
COBISS:	9882441
Views:	1343
Downloads:	213
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	ǂThe ǂdistribution of selected invasive alien plant species in the riparian zone of the river Rižana
Secondary abstract:	The aim of the graduation thesis was to determine the presence and the frequency of invasive alien plant species in the riparian zone of the river Rižana and to find out the relations between environmental factors and their appearance. We examined 44 reaches on the left bank of the river Rižana and 48 reaches on the right bank. For each reach an environmental assessment on the base of selected environmental characteristics (questionnaire) and the inventory of invasive alien species were made. We found 19 invasive alien species. Among them, the most frequent invasive species were Robinia pseudacacia, Helianthus tuberosus and Erigeron annuus. Canonical Correspondence Analysis revealed that water depth, riparian vegetation and its completeness, flow velocity and flow dynamics were the most influential parameters affecting the presence and abundance of invasive alien species on the left bank while on the right bank riparian vegetation within ten-meter zone along the channel and bank modifications exerted significant effect.
Secondary keywords:	botany;environment;botanika;okolje;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. Ljubljana, Pedagoška fak., Biotehniška fak., Fak. za kemijo in kemijsko tehnologijo, Naravoslovnotehniška fak., Kemija in biologija
Pages:	XI, 70 f., [4] f. pril.
Type (ePrints):	thesis
Title (ePrints):	The distribution of selected invasive alien plant species in the riparian zone of the river Rižana
Keywords (ePrints):	invazivne vrste
Keywords (ePrints, secondary language):	Invasive species
Abstract (ePrints):	Cilj diplomske naloge je bil ugotoviti katere invazivne tujerodne rastlinske vrste naseljujejo obrežni pas reke Rižane ter kakšna je njihova pogostost ter ugotoviti povezavo med okoljskimi dejavniki in njihovim pojavljanjem. Na levem bregu reke Rižane smo pregledali 44 odsekov, na desnem pa 48. Za vsak odsek smo na podlagi izbranih okoljskih značilnosti (vprašalnik) podali oceno okolja ter popisali invazivne tujerodne vrste. Popisali smo 19 invazivnih tujerodnih vrst. Med njimi so se najbolj pogosto pojavljale vrste: Robinia pseudacacia, Helianthus tuberosus in Erigeron annuus. Kanonična korespondenčna analiza je pokazala, da so na pojavljanje in pogostnost invazivnih tujerodnih vrst na levem bregu najbolj vplivali globina vode, obrežna vegetacija tik ob strugi, sklenjenost obrežne vegetacije, hitrost vode, spodjedanje bregov in dinamika toka, na desnem bregu pa obrežna vegetacija znotraj desetmetrskega pasu ob strugi ter spremembe rečne struge.
Abstract (ePrints, secondary language):	The aim of the graduation thesis was to determine the presence and the frequency of invasive alien plant species in the riparian zone of the river Rižana and to find out the relations between environmental factors and their appearance. We examined 44 reaches on the left bank of the river Rižana and 48 reaches on the right bank. For each reach an environmental assessment on the base of selected environmental characteristics (questionnaire) and the inventory of invasive alien species were made. We found 19 invasive alien species. Among them, the most frequent invasive species were Robinia pseudacacia, Helianthus tuberosus and Erigeron annuus. Canonical Correspondence Analysis revealed that water depth, riparian vegetation and its completeness, flow velocity and flow dynamics were the most influential parameters affecting the presence and abundance of invasive alien species on the left bank while on the right bank riparian vegetation within ten-meter zone along the channel and bank modifications exerted significant effect.
Keywords (ePrints, secondary language):	Invasive species
ID:	8311888