International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B2, 2012
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia
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Figure 14 illustrates a vegetation area that received care. This
region was classified in the image as “Small change” class. In a
GIS framework we can enquiry information by attribute. Below,
we give some examples of queries to explore the features of
SIG.
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J№ 35300'242123000
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Significant Change
Small Change
Figure 13 - Relationship between vegetation changes (LC and
SC) and income.
Figure 15. Spatial query: districts with amount of vegetation
higher than 0.8 and income lower than RS 1,244 (yellow).
Figure 16 -Significant Changes in the Vale do Rio Meia Ponte.
Conversely, we may ask what are the districts with vegetation
change less than 0.2 and income higher than RS 3.500,00
(Figure 17).
Figure 14 - Vegetation area pointed out as “Small change” in
the vegetation change map.
Figure 15 presents a spatial query involving the SC variable and
income. We asked the system to indicate the districts that have
vegetation change higher than 0.8 and income lower than RS
1,244. The system pointed out the districts of Vale do Meia
Ponte, which was confirmed by the field work as shown in
Figure 16. This area presents abandoned flower beds covered
with vegetation and city squares that are unattended.
Figure 17. Spatial Query: what arc the districts with vegetation
change less than 0.2 and income higher than RS 3.500,00.
The Central Sector and the Campinas Sector appeared as
districts with better income and low change, which are also
confirmed, as illustrated in Figure 18.
Figure 18 - Small Change in the Central Sector.
We also verified the possibility of establishing a relationship
between intra-urban vegetation changes and social-economic