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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After preparation of scenarios of land use adopted the concept and classification of hemerobia
of Jalas (1953) in the preparation of letters of artificiality in the Cará-Cará basin. The Categories
adopted are: ahemerobe, oligohemerobe, mesohemerobe and euhemerobe.
3. Result
Two scenarios land use were constructed for Cará-Cará basin for the years 1980 and 2007
(Figure 1), where they were identified in the first scenario five classes of land use and seven
classes in the second (Table 1).
Figure 1. Maps of land use of Cará-Cará Hydrographic Basin of 1980 and 2007
Table 1. Quantification of land use classes
Classes
1980 2007
Area (ha) % Area (ha) %
Industrial area - - 314.59 4.30
Urbanized area 343.72 4.70 762.48 10.42
Campestral 3,802.30 51.96 3,069.06 41.94
Industrial area
Continental water - - 2.64 0.04
body
Cultivation 2,126.42 29.06 2,423.79 33.12
Forestry 363.42 4.97 274.36 3.75
Reforestation 681.66 9.31 470.60 6.43
Total 7,317.52 100 7,317.52 100
To map the areas of environmental conflicts, we used the proposal to Beltrame (1994)
represented by the classes corresponding use and areas over-used and under-utilized. In this
study, the corresponding use areas are being used as the relevant legislation. The over-used
areas are those where the activities are being carried out in permanent preservation areas or not
provided for in the Zoning Plan. Underutilized areas in the Cará-Cará Hydrographic basin are
represented by areas for urbanization and industry, not yet occupied by these activities (Figure
2) (Table 2).
Table 2. Environmental conflicts in the Cará-Cará hydrographic basin
Classes
1980 2007
Area (ha) % Area (ha) %
Over-used 409.62 34.26 153.39 9.96
Underused 786.15 65.74 1,387.06 90.04
Total 1,195.77 100 1,540.45 100
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.