Landscapes Forest and Global Change - ESA - Escola Superior ...

S.M. Carvalho & A.R. de Freitas 2010. The impact of legislation on the dynamics of land use the River Basin Cará-Cará
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Figure 2. Maps of environmental conflicts of Cará-Cará Hydrographic Basin of 1980 and 2007.
As a result of the maps of artificiality of the medium we obtained two letters of hemerobia for
Cará-Cará Hydrographic basin dated of 1980 and 2007 (Figure 3), which were analyzed
according to the degree of anthropogenic interference existing.
Figure 3. Maps of hemerobia of Cará-Cará Hydrographic Basin of 1980 and 2007.
Were identified and mapped four classes of hemerobia: ahemerobe, oligohemerobe,
mesohemerobe and euhemerobe (Table 3).
4. Discussion
Table 3. Quantification of hemerobe classes of Cará-Cará Hydrographic Basin
Classes
1980 2007
Area (ha) % Area (ha) %
Ahemerobe 363.42 4.97 274.36 3.75
Oligohemerobe 3,802.30 51.96 3,069.06 41.94
Mesohemerobe 2,808.08 38.37 2,897.03 39.59
Euhemerobe 343.72 4.70 1,077.07 14.72
Total 7,315.52 100 7,315.52 100
Between the years 1980 and 2007, three classes of land use had expanded, namely: industrial
area, urbanized area and cultivation. In 1980 the industrial district was already defined in the
Cará-Cará basin, however there were no industries located. The area dedicated to industrial
activities at this time was occupied by reforestation (Pinus spp.) raw material for wood
Forest Landscapes and Global Change-New Frontiers in Management, Conservation and Restoration. Proceedings of the IUFRO Landscape Ecology
Working Group International Conference, September 21-27, 2010, Bragança, Portugal. J.C. Azevedo, M. Feliciano, J. Castro & M.A. Pinto (eds.)
2010, Instituto Politécnico de Bragança, Bragança, Portugal.