6 research outputs found
Spatial distribution analysis of the ecological factors in the Avereşti Wine Growing Centre – Huşi vineyard
The spatial distribution of
the ecological factors explain the presence
in viticultural areas of “terroirs”, which are
microzones with particular ecological
features, favourable for wine growing, that
influence the quality of grapes, as well as
the authenticity of wines. The locations of
these terroirs in the vineyards are usually
known, but their ecological evaluation and
territory delimiting are difficult to achieve.
In this work, we proposed the use of the
Geographic Information System (GIS), a
tool of the informational technologies that
allow carrying out complex analyses of the
geographic areas. Using GIS, we calculated
the spatial distribution of some climatic
(temperature, solar radiation, insolation and
rainfall) and topographic factors (altitude,
slope and slope direction) for the Avereşti
Wine Growing Centre and elaborated the
thematic maps corresponding to the abovementioned
factors. Their analysis pointed
out the presence in the Averesti wine
growing area of many "terroirs" with
particular ecological features, some of them
being favourable for the production of
quality white wines, while others, for table
and sparkling wines
Evaluating the ecological suitability of the vineyards, by using Geographic Information Systems (GIS)
In this scientific paper are
presented the preliminary results of the
research having as goal to establish a
methodology for the determination of the
oenoclimatic potential and its spatial
distribution in the viticultural areas. Data
were obtained by means of GIS technology
and disclosed a new, original model for
analysing the viticultural ecoclimate. The
evaluation presented in this scientific paper
was the result of processing and interpreting
data concerning spatial distribution,
individual influence and total influence of
four ecological factors that determine the
quality of grapes: slope, aspect, solar
radiation and real insolation. Investigations
were carried out in three stages: I.
Determination of the spatial distribution of
ecological factors in the wine growing
region; II. Determination of the ecological
factors suitability and their distribution in
the wine growing region; III. Determination
of the oenoclimatic potential of the wine
growing region and the graphical
representation of its spatial distribution.
The distribution of ecological factors is
represented by digital maps. The ecological
factor suitability for grape growing was
assessed according to a new evaluation
system, and its distribution was represented
graphically on the region map. The
oenoclimatic potential was expressed by the
sum and the average of evaluation points
given to the ecological factors. We found
that the sum of evaluation points has
generated a detailed representation of the
oenoclimatic potential, while the average of
evaluation points gave a much clearer
synthetic representation, allowing the
identification and delimitation of highly
favourable terroirs. The evaluation of the
Avereşti wine-growing centre – Huşi
vineyard (Vaslui County) has shown that
94.37% of its area was favourable for
producing high quality white wines, 4.40%
for producing quality white and red wines,
while 1.19% was less favourable for wine
growing. The maps showing the distribution
of the oenoclimatic potential highlighted the location of valiant terroirs in the Avereşti
wine growing centre
GIS applications in viticulture: the spatial distribution analysis of slope inclination and slope exposure in Huşi vine growing centre – Huşi vineyard
The paper presents the
results of a study regarding the spatial
distribution of slope exposure and slope
inclination in Husi vine growing centre,
Husi vineyard. These factors determine the
ecological suitability of an area for vine
growing and influence, to a large extent,
both directions of wine production and
grape quality. The knowledge in their share
and variation in vine growing areas, allows
to establish the proper grapevine varieties,
to place each variety in the optimum
location (microzoning), to choose the
optimal training system and the appropriate
maintenance techniques for the vineyard
area. The technology that allows such
analysis and the elaboration of maps with
spatial distribution of the ecological factors
is GIS (Geographic Information Systems),
an instrument of information technologies
introduced in the last years in viticulture
too. The research presents a case study in
which GIS is used to determine the
geomorphological features of Husi vine
growing center, the local variation of the
slopes and the spatial distribution of
ecological suitability in the vineyard,
depending on these factors. The results
show that, in relation to suitability of slope
inclination and slope exposure, Husi center
includes four areas with different suitability
for vine growing. Of the total vineyard area,
42.2% (903.2 ha) has south and
predominantly south exposure, the most
favorable for vines, and 37.98% (814.58 ha)
northern exposure, bad or limiting for vines.
The slope analysis shows that 29.19%
(624.2 ha) is suitable for high production
varieties, and 70.81% (1515.6 ha) for
quality wines varieties. According to the
suitability of slope inclination and slope
exposure, the most favorable for vine
cultivation is SD4 area, that includes Recea
and Galbena lands, while the worst for the
vines is SD1 unit that includes Rusca, Schit
and Ochi lands