Vol 3, No 2 (2009)

Published March 21, 2019

Issue Description

Szabó, Gy. - Czellér, K.: Examination of the heavy metal uptake of carrot (daucus carota) in different soil types

Joshi, V.U. - Nagare, V.: Land use change detection along the Pravara River basin in Maharashtra, using remote sensing and GIS techniques

Tóth, T. - Langohr, R. -Becze-Deák, J. - Molnár, Zs.: Field pedological characterisation of two transects along the inner and outer sides of a sixty years old Tisza dike - a contribution to the problem of primary and secondary alkali grasslands

Németh, Á. - Mika, J.: Climate as a risk factor for tourism

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Articles

Examination of the heavy metal uptake of carrot (daucus carota) in different soil types
56-70

In this paper the heavy metal uptake of carrot (Daucus carota) is studied in sample areas with
different soil types. Our aim is to examine how the different soil types possessing different
characteristics affect the heavy metal uptake and distribution in the plant. Correlation analyses were
carried out in order to determine which of th...e total heavy metal concentrations and soil characteristics
(pH, CaCO3-content, humus content, granulometric composition) play the most important role in the
uptake of the Co, Cu, Fe, Ni, Mn, Zn and in the metal distribution in the examined plant. Soil and
plant samples were collected from 5 different Hungarian areas in July, 2008. In the cases of soils with
different soil characteristics, the examined plants are supposed to give varied physiological responses.
During the examination we proved that the genetic type and the heavy metal content of the soil do not
significantly affect the heavy metal uptake of carrot. The granulometric composition of the soil has
the most considerable effect but this factor only affects the rate of the metal uptake in 50% of the
examined heavy metals (Ni, Mn, Zn).

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65
93
Land use change detection along the Pravara River basin in Maharashtra, using remote sensing and GIS techniques
71-86

In the past few decades there has been an increasing pressure of population all over the world,
especially in India, resulting in the utilization of every available patch of available land from
woodlands to badlands. The study area represents a basin which is economically growing fast by
converting the fallow lands, badlands and woodla...nds to agricultural land for the past few decades.
IRS (Indian Remote sensing Satellites) 1 C – LISS III and IRS 1 C PAN and IRS P6 – LISS III and
IRS 1 D PAN Images were merged to generate imageries with resolution matching to the landscape
processes operating in the area. The images of the year 1997, 2000, 2004 and 2007 were analyzed to
detect the changes in the landuse and landcover in the past ten years. The analysis reveals that there
has been 20% increase in the agricultural area over the past ten years. Built up area also has increased
from 1.35% to 6.36% of the area and dense vegetation also has marginally increased. The remarkable
increase in the agricultural area occurs owing to the reclaim of the natural ravines and fallow lands.
Presently the area looks promising, but it is necessary to understand the sedimentological and
geomorphological characteristics of the area before massive invasion on any such landscapes because
the benefit may be short lived.

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50
132
Field pedological characterisation of two transects along the inner and outer sides of a sixty years old Tisza dike - a contribution to the problem of primary and secondary alkali grasslands
87-112

Two transects were studied by field pedological investigations and soil bulk electrical conductivity measurements in order to understand the effect of a 60 year old dike along the Tisza River on soil formation and vegetation composition. There were no great differences in the soil properties. The soil is more saline and wetter inside the dike a...nd vegetation reflected this environment. We hypothesize that the increasing build up of the riverbed might contribute to the contrast in soil and groundwater salinity between the area inside and the area outside the dike, similarly as conceptualised by Kuti (1989) for the Danube area, but at a much smaller distance.

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34
20
Climate as a risk factor for tourism
113-125

Weather and climate risk factors for tourism are surveyed and illustrated with regard to the expected climate changes in Hungary. These changes are not at all advantageous and which affect the business in question both directly and indirectly. These are the summer resort tourism (characterised by bioclimatic indices). Green tourism is the next ...one to characterise, including skiing, mountain climbing and eco-tourism, as well. Here both day-to-day weather extremes and long-lasting effects on the biota (e.g. drought, or inundation for plain-area eco-tourism). Last, but not least the urban (cultural- and shopping-) tourism is presented, since the large towns exhibit their special climate and different risks. The paper intends to specify these meteorological factors and effects also in terms of the different types of touristic activities. The general statements on the effect of weather and climate on tourism are illustrated by a few individual parameters and also by the so called Physiologically Equivalent Temperature. Annual and diurnal course of this parameter are presented, together with various trends in this variable at different sites and in different (hot and cold) extremities of the occurring values. Other examples, helping the tourism industry are presented in various climate conditions of the country. They include high precipitation and high relative humidity information. The paper also lists the possible adaptation measures to extreme events and also their likely changes in time.

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98
38
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