dc.contributor.advisor	Martins, Maria de Belém
dc.contributor.advisor	Fragoso, Rui Manuel de Sousa
dc.contributor.author	Xavier, António
dc.date.accessioned	2011-09-07T16:05:41Z
dc.date.available	2011-09-07T16:05:41Z
dc.date.issued	2009
dc.description	Dissertação mest., Gestão Sustentável de Espaços Rurais, Universidade do Algarve, 2009	por
dc.description.abstract	The purpose of this dissertation is to complement the lack of data related to the forest and agricultural occupation and the livestocks in Castelo de Vide. To solve the research problem a model of data disaggregation was developed, taking the utmost of previous information available in earlier studies. The proposed model was based on the ideas of generalized maximum entropy (GME) and minimum generalized crossed entropy (MGCE), in order to obtain a series of disaggregated data related to the forest and agricultural occupation, considering two levels of disaggregation and following two steps: 1) the creation of a basis at the aggregated level (Markov transition matrixes, estimated by the maximum entropy); 2) data disaggregation, based on the previous established basis. The model also involves two application variants: simultaneous disaggregation of data as well as a direct one (to solve the problems that might appear in the previous one and maximize the recovered information). Moreover, a model based on these principles is proposed to the disaggregation of the livestock data. The model is applied to the disaggregation of data in the municipality of Castelo de Vide. The results obtained in the process of direct disaggregation of the forest and agricultural occupation and livestock have shown to be reliable. They have been validated in the year of 1999, submitted to experts? opinions, to other sources of information and compared to the results of other methodologies. The analysis of the results showed that the forest and agricultural occupation of Alto Alentejo and Castelo de Vide after 1999 tend to be more homogeneous, with a strong domain of permanent pastures, and there is a shortage of certain livestocks (sheep and goats). The several CAP changes have had effects in Alto Alentejo and Castelo de Vide, since they have contributed to a larger extensification of the practice of agriculture and to the decline of traditional productions.	eng
dc.format	application/pdf	por
dc.identifier.other	636-08 XAV*Des Cave
dc.identifier.uri	http://hdl.handle.net/10400.1/829
dc.language.iso	por	por
dc.subject	Teses	por
dc.subject	Ocupação agro-florestal	por
dc.subject	Modelo de desagregação de dados	por
dc.subject	Pecuária	por
dc.subject	Agricultura	por
dc.subject	Dieta mediterrânica	pt_PT
dc.title	A desagregação espacial de dados agrícolas: aplicação de uma abordagem baseada na máxima entropia ao concelho de Castelo de Vide	por
dc.type	master thesis
dspace.entity.type	Publication
person.familyName	Xavier
person.givenName	António
person.identifier.ciencia-id	FD1C-2A06-E093
person.identifier.orcid	0000-0002-8158-3732
person.identifier.rid	V-7299-2017
person.identifier.scopus-author-id	42162312900
rcaap.rights	restrictedAccess	por
rcaap.type	masterThesis	por
relation.isAuthorOfPublication	b9dc159a-033a-44fc-83df-2d3e819a4a86
relation.isAuthorOfPublication.latestForDiscovery	b9dc159a-033a-44fc-83df-2d3e819a4a86
thesis.degree.grantor	Universidade do Algarve. faculadde de Engenharia de Recursos Naturais	por
thesis.degree.level	Mestre	por
thesis.degree.name	Mestrado em Gestão Sustentável de Espaços Rurais	por

A desagregação espacial de dados agrícolas: aplicação de uma abordagem baseada na máxima entropia ao concelho de Castelo de Vide

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