Abstract:
Experiments conducted at
Agricultural Research and Development
Station of Podu-Iloaiei, Iaşi County,
Romania, during 2002 - 2011, followed
study runoff and soil erosion in different
cultures, and establish critical season of soil
erosion in this area. Establish critical season
of soil erosion is necessary to satisfy the
critical level of ground cover, which is
required to maintain a low risk of soil
erosion. Average annual soil loss by
erosion, recorded in maize and sunflower
were (mean on 10 years) of 6.753 and 7.385
t/ha/year, respectively. In sunflower and
corn of the total soil loss recorded in the
Moldavian Plateau, 19.7- 20.4% occurred in
spring, 68.7 to 69.2% in summer and 6.1-
6.6% in the autumn. Differences of 4.5 to
4.9% of the total annual soil losses by
erosion were recorded in winter, with snow
melt. Season critic of soil erosion in the
Moldavian Plateau, when recording the
most aggressive rain event occurs in June
and July. Mean soil loss due to erosion,
recorded in June and July were 0.424 t/ha
for winter rape, winter wheat 0.291 and
0.093 t/ha the perennial grasses in the
second year of vegetation.
