Meritve in modeliranje erozivnosti padavin kot parametra erozije tal

doktorska disertacija

Sašo Petan (Author), Matjaž Mikoš (Mentor), Goran Turk (Thesis defence commission member), Mitja Brilly (Thesis defence commission member), Boris Kompare (Thesis defence commission member), Marina Pintar (Thesis defence commission member), Jože Rakovec (Co-mentor)

Abstract

Keywords

gradbeništvo;erozija tal;erozivnost padavin;intenzivnost padavin;porazdelitev padavinskih delcev;kinetična energija;padavine;sproščanje tal;karte;Slovenija;

Data

Language:	Slovenian
Year of publishing:	2010
Source:	Ljubljana
Typology:	2.08 - Doctoral Dissertation
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[S. Petan]
UDC:	551.3.053:556.12:556.535/537(043.3)
COBISS:	5194849
Views:	2838
Downloads:	762
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Measurements and spatial modelling of rainfall erosivity as a soil erosion factor
Secondary abstract:	Soil erosion threatens the ecological functions of soil and water ecosystems. Today, in the time of changing climate factors and increased economic pressures on land use, the early identification of the endangered areas on the basis of erosion factor quantification is of extraordinary importance. The doctoral dissertation deals with rainfall erosivity as the climate factor of soil erosion, which is defined in the widely used (R)USLE procedure for soil loss prediction. As a rule, the rainfall erosivity calculation is based on empirical relationships which are derived for individual climate regions. On the basis of performed rainfall intensity and raindrop size distribution measurements, we derived exponential relationships between the rainfall kinetic energy and the rainfall intensity for the submediterranean, subalpine and moderate continental climate regions of Slovenia, to assist the rainfall erosivity assessment. We compared the results of the derived relationships with those of the relationships proposed by other authors, which enabled us to examine the derived relationships within global and regional (Mediterranean) contexts. Furthermore, we performed surface runoff and soil loss measurements on experimental plots that were set up on different land use locations, to determine the significance of maximum rainfall intensities of different duration, declared as crucial for soil loss estimation along with the rainfall kinetic energy. From the previously derived relationships for rainfall kinetic energy calculation and the rainfall intensity data obtained from the pluviographic network of the Environmental Agency of the Republic of Slovenia we determined the rainfall erosivity factor and also its seasonal distribution for 31 locations in Slovenia distributed across the three climate regions of Slovenia. Finally, using spatial interpolation techniques we created a preliminary map of spatial distribution of rainfall erosivity in Slovenia.
Secondary keywords:	doctoral thesis;civil engineering;soil erosion;rainfall erosivity;rainfall intensity;raindrop-size;distribution;rainfall kinetic energy;soil loss;rainfall erositivity map;
URN:	URN:NBN:SI
File type:	application/pdf
Type (COBISS):	Dissertation
Thesis comment:	Univ. Ljubljana, Fak. za gradbeništvo in geodezijo
Pages:	XXXV, 205 str., [15] str. pril.
Keywords (UDC):	mathematics;natural sciences;naravoslovne vede;matematika;earth sciences;geological sciences;geologija;general geology;meteorology;climatology;historical geology;stratigraphy;palaeogeography;external geodynamics (exogenous processes);mathematics;natural sciences;naravoslovne vede;matematika;earth sciences;geological sciences;geologija;hydrosphere;water in general;hydrology;hidrosfera;voda na splošno;hidrologija;mathematics;natural sciences;naravoslovne vede;matematika;earth sciences;geological sciences;geologija;hydrosphere;water in general;hydrology;hidrosfera;voda na splošno;hidrologija;surface-water hydrology;land hydrology;hidrologija površinskih voda;
ID:	26468