In: Wagner W„ Szekely, B. (eds.): ISPRS TC VII Symposium - 100 Years ISPRS, Vienna, Austria, July 5-7, 2010, IAPRS, Vol. XXXVIII, Part 7B
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development of the fruit bearing, stock breeding, tourism
etc.
Fig. 1.1. Albania on the west of Balkan Peninsula
The climate is Mediterranean on the west. Inside the
country are appeared the influences of the continental
phenomenons in the climate while in height the alpine ones.
Summer, in general, is hot and dry, while the winter is wet.
The period with equal or higher temperature than 10° C
changes from 260 to 300 days in a year. In general there
precipitate average 1480 mm in a year. But the average
annual quantity of the precipitation changes from 600 mm
to 2100 mm. There are met 2000 - 2700 hduk with sun
radiation. The extraordinary meteorological situations
which are accompanied with economical damages happen
rather often.
Albania is rich with water richness. It is traversed
by a hydrographical network with general length over 49
000 km and mean density 1.7 km/km 2 . The annual volume
of the water quantity of the rivers arrives 41.2 km 3 . Main
rivers are Buna and Drin with average discharge 680 m/sec,
Vjosa 195 m 3 /sec, Mati 103 m 3 /sec, Seman 95 m 3 / sec. It
has parts of the big tectonic lakes (Shkodra, Ohri and
Prespa), glacial lakes (about 30), charstic ones (80), littoral
(10) and artificial (700). It is rich with underground water
and big karstic springs, mineral springs and thermo mineral
ones. Some of the rivers, parts of the littoral and some lakes
are polluted by the industrial, agricultural and urban wastes.
Vegetation world is various. There are 3250 kinds of
natural plants, which constitute 29 % of the total number
grown in Europe and 47 % of the Balkan plants. In Albania
are met plants of different regions such as: Mediterranean,
north Balkanic, alpine - Carpathian, central of Europe,
euroaziatics. etc. 1 % of the Albanian vegetation is endemic
and 5 % is sub endemic. There are four vegetation belts
(Mediterranean shrubs, oaks, beeches and conifers, alpine
in pastures).
About 35 % of the territory is occupied by the forests,
from which to every person belongs 0.3 ha. The high forests
occupy about 47 % of the forest area, low forest 29 % and
shrubs 24 %. About 10 000 ha forest are proclaimed
national parks. The wild world is rich with many kinds of
animals, even rare ones ( grey dark bear, wild cat and goat,
pelican, etc). As we see the country is significant for the
biodiversity but is damaged a lot by the man's activity.
3. LAND COVER CLASSIFICATION SYSTEMS
Classification is an abstract representation of the
situation in the field using well-defined diagnostic criteria:
the classifiers. Sokal (1974) defined it as: "the ordering or
arrangement of objects into groups or sets on the basis of
their relationships." Classification is one of the most
important steps in handling remote sensing imagery and
represents important input data for geographic information
systems (GIS) (Ostir 2006)
A classification describes the systematic framework
with the names of the classes and the criteria used to
distinguish them, and the relation between classes.
Classification thus necessarily involves definition of class
boundaries that should be clear, precise, possibly
quantitative, and based upon objective criteria. Land cover
classes are defined by a string of classifiers, but due to the
heterogeneity of land cover, and with the aim of achieving a
logical and functional hierarchical arrangement of the
classifiers, certain design criteria have been applied.
A classification should therefore be:
• Scale independent, meaning that the classes at all
levels of the system should be applicable at any
scale or level of detail; and
• Source independent, implying that it is
independent of the means used to collect
information, whether satellite imagery, aerial
photography, field survey or some combination of
them is used.
Classification systems come in two basic formats,
hierarchical and non-hierarchical. Most systems are
hierarchically structured because such a classification offers
more consistency owing to its ability to accommodate
different levels of information, starting with structured
broad-level classes, which allow further systematic
subdivision into more detailed sub-classes. The Land Cover
Classification System (LCCS) that is used for land cover in
Albania is in the format hierarchical.
4. LAND COVER CLASSIFICATION SYSTEM IN
ALBANIA
4.1. USING LAND COVER
The words about land/terra/ground that are used
until now in Albanian literature, are: “geography”,
“land/ground”, “topographic elements of land/ground ”,
“geographic environment” “geographic landscape”,