All geographic
analysis was done in ArcGIS and ArcCatalog, All data layers
were projected in UTM -Nad 1987 coordinate
The final result map of vineyards site selection is a function
of 3 main and seperate layers
- Solar radiation suitability
The solar radiation intensity greatly influences the level
of soluble solid in grapes. When inadeque solar radiation
condition occure due to cloudy weather, desirable sugare
may not be reached. The growers can conpensate for low solar
radiation to some extend by thinning to give a higher ratio
of leaves to fruite. and through the use of trellies designs
which allows maximum light penetration into the vines.
- Growing degree suitability
The growing of most variates of grapes requires a large
accumulation of growing degree days to permit the fruite
to rippen. the insufficient growing degree day reduces the
suger level of the grapes and the alchohol level of the
produced wine.
- Soil drainage suitability
vines are very sensitive to moisture. Heavier soils with
too much clay content, especially on flatter terrain are
not appropriate, since they reduce root development and
tend to hold too much moisture in wet periods. Ideally the
soil should be clay/loam or sandy/loam with considerable
moisture drainage.
The final map then
was produced as a function of the above criteria. since the
solar radiation in mind of many growers seems to be the most
important factor among the other two it was given double the
weight of the others. So the final result equals to
2 * [solar radiation suitability] + [growing degree day suitability]
+ [soil drainage suitability].
click here to see the final vineyard
suitability map..
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