An Integrated Agroforestal Suitability Model Using a GIS-Based Multicriteria Analysis Method: A Case Study of Portugal

Yıl 2018, Sayı: 3, 11 - 20, 01.12.2018

Luis Quınta-nova Roque Natalıa

Öz

It is generally agreed that the choice of the most
suitable uses based in soil and climatic factors, complemented with
socio-economic criteria, promotes sustainable use of rural land. There are,
however, different methodologies for defining the soil suitability to
agroforestal systems or natural and seminatural ecosystems, including
agricultural uses, forest plantations, agro-forestry areas and priority areas
for nature conservation. Many of these methods rely on decision support systems
based on multicriteria spatial analysis. In this study we intended to determine
the different levels of suitability for agro-forestry use in a subregion
located in the center of Portugal, near the border with Spain. To the effect we
used a set of soil and topographic variables. The legal constraints and land
cover were also included. The suitability evaluation was performed using the Analytic
Hierarchy Process (AHP). A spatial analysis was also performed in order to
confront the land use matrix with the soil potentiality. This analysis allows
to identify areas where the use and management it is in accordance with their
suitability, as well as areas where the use must be subject to a conversion or
at least to a change of management mode.

Anahtar Kelimeler

Land use suitability, Analytic hierarchy process, Geographic information systems, Multicriteria analysis

Kaynakça

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