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Title: Geoscientific maps for planning in semi-arid regions: Valencia and Gran Canaria, Spain
Authors: Cendrero, A.
Sánchez, J.
Antolin, C.
Arnal, S.
Diaz de Terán, J. R.
Francés, E.
Martínez, V.
Moiuño, M.
Nieto, M.
Nogales, I.
Pérez, E. 
Rios, C.
Robles, F.
Romero, A.
Suaárez, C.
UNESCO Clasification: 250507 Geografía física
Issue Date: 1990
Journal: Engineering geology 
Abstract: Two case studies of the application of geoscientific maps for planning in semi-arid regions are presented, one for the Mediterranean province of Valencia and another for the island of Gran Canaria (Canaries). Both regions are very dynamic from the point of view of population growth and urban-touristic-industrial development, and they suffer from a serious degree of environmental degradation. The provincial/ island governments have undertaken programmes of geoscientific mapping and assessment to serve as a basis for the establishment of guidelines for future planning. Two map sets have been made (1:200,000 in Valencia and 1:50,000 in Gran Canaria), based on initial maps of homogeneous integrated units. These represent a series of hierarchical land subdivisions, progressively smaller and more detailed (morphodynamic environments, systems, units, elements), defined on the basis of morphostructure, climate, lithology, surficial deposits, landforms, topography, active processes, soils, vegetation and human influence. Each individual map unit is described by means of a form which includes 114 items, summarising its environmental features. Morphodynamic units have been evaluated in terms of qualities significant for planning, and a series of derivative maps has been developed (geologic hazards, soil capability, present degree of erosion, potential erodibility, quality for conservation). A final map shows the most advisable types of uses and the main limitations for human activities, mainly due to engineering geological factors. This is a synthesis document which can be used directly by planners.
ISSN: 0013-7952
DOI: 10.1016/0013-7952(90)90064-8
Source: Engineering geology [ISSN 0013-7952], v. 29 (4), p. 291-319, (Enero 1990)
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