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Mitigating land degradation in Mediterranean agro-silvo-pastoral systems: a GIS-based approach

D'Angelo, Massimo and Enne, Giuseppe and Madrau, Salvatore and Percich, Luca Sigfrido and Previtali, Franco and Pulina, Giuseppe and Zucca, Claudio (2000) Mitigating land degradation in Mediterranean agro-silvo-pastoral systems: a GIS-based approach. Catena, Vol. 40 (1), p. 37-49. ISSN 0341-8162. Article.

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DOI: 10.1016/S0341-8162(99)00063-6

Abstract

Agro-silvo-pastoral systems were studied in central–eastern Sardinia (Italy) to assess their environmental impact in marginal Mediterranean areas. Land cover changes between 1955 and 1996 were assessed by using multitemporal aerial coverages. The shift from extensive to semi-extensive production systems resulted in a decrease in woodland and in a marked increase in artificial pastures. Related field surveys highlighted widespread land degradation processes in areas where pasture amendment actions on land characterised by steep or fairly dissected morphology had been carried out. Starting from a past land suitability classification developed at farm level, a scheme for the evaluation of the land suitability to the creation of new pastures at regional scale was developed by using GIS methodologies. The scheme classifies the land into five land suitability classes as defined in the FAO Framework for Land Evaluation (highly suitable, moderately suitable, marginally suitable, currently not suitable, permanently unsuitable). The land suitability classification performed by the GIS model showed high accuracy if compared to the traditional procedure. The comparison between the land suitability and current land uses allows the identification of areas sensitive to land degradation where land resource conservation programmes can be proposed.

Item Type:Article
ID Code:4108
Status:Published
Refereed:Yes
Uncontrolled Keywords:Land degradation, agro-silvo-pastoral systems, land suitability classification, land use evolution, Italy, Sardinia
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/14 Pedologia
Area 07 - Scienze agrarie e veterinarie > AGR/19 Zootecnica speciale
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze zootecniche
001 Università di Sassari > 01 Dipartimenti > Ingegneria del territorio
001 Università di Sassari > 02 Centri > Centro interdipartimentale Nucleo di ricerca sulla desertificazione
Publisher:Elsevier
ISSN:0341-8162
Copyright Holders:© 2000 Elsevier Science
Deposited On:08 Jul 2010 09:17

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