nstantaneous and historical temperature effects on a-pinene
Conditions
of gully development within piedmont areas with examples
from
the western part of the GeticPiedmont, Romania
Â
Author Details
Â
SanduBoengiu
Geography
Department, University of Craiova, Romania,
Str.Al.I.Cuza,
nr. 13, Craiova,
Romania
AlinaVladut
(Corresponding author)
Geography
Department, University of Craiova, Romania,
Str.Al.I.Cuza,
nr. 13, Craiova,
Romania
e-mail: vladut_alina2005@yahoo.com
EmilMarinescu
Geography Department, University of Craiova,
Romania, Str.Al.I.Cuza,
nr. 13, Craiova,
Romania
Â
Publication Data
Paper received:
25
October 2010
Â
Revised
received:
02
July 2011
Â
Accepted:
30 July 2011
Â
Abstract
Features of gully morphometry and associated relief characteristics
emphasize that gully develop under a wide variety of rock conditions,
rainfall regimes, geomorphic predisposition, and human influence.Consequently, many slopes within piedmont areas, in this
case, the Getic Piedmont, are characterized by
dense gully systems, as there occur excessive clearing, inappropriate land
use, compaction of the soil caused by grazing, on the general background of a
favourable climate. Both rainfall and runoff
factors must be considered in assessing a water erosion problem. The erosional slope development within the Getic Piedmont was evaluated based on maps and field
studies in the last 15 years, which emphasized that about 20 % of the total
surface of the piedmont is affected by gully erosion. The results show that
the factors leading to the strong gully erosion in this area include – the
widely distributed friable rocks, the unique geomorphologic configuration,
the strong and time-concentrated rainfall, the alternance
of drought-humid periods that prepares the ground for the development of
fissures in soils, the drought that influence the growth and recovery of
vegetation, and the intense human activities. Gully erosion is one of the most
visible forms of soil erosion, which affects its productivity, provides
considerable material transport – torrential transports, debris flow,
restricts land use, and threatens local communities.
Â
Key
words
Gully erosion, Slopes,
Torrential transport, Land use, Getic Piedmont