Advertisement

Towards a conceptual data model for the analysis of spatio-temporal processes: the example of the search for optimal grazing strategies

  • Jean-Paul Cheylan
  • Sylvie Lardon
Temporal Reasoning
Part of the Lecture Notes in Computer Science book series (LNCS, volume 716)

Abstract

This paper addresses a number of conceptual and practical problems of integrating space and time within a GIS environment encountered in an ongoing study of the strategies adopted by a shepherd in managing a flock of sheep at different scales of space and time on an alpine pasture in the southern French Alps. The aim of the study, which is based on the analysis of the timetables used to exploit the vegetatative resource within a set of time-space constraints, is to understand the way that the shepherd partitions space into compartments and the way these are used at different times.The pertinent conceptual issues are reviewed, the problems of formalising this type of problem for analysis are discussed, and alternative ways of structuring the data for GIS application are proposed.By way of conclusion, a preliminary attempt is made to summarise critical issues emerging from the study in the handling of time in spatial analysis and comments are briefly made on directions for future spatio-temoral research into grazing strategies.

Keywords

Digital Terrain Model Alpine Pasture Circuit Type Temporal Validity Mountain Pasture 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Allen J.F. 1983 «Maintaining knowledge about temporal intervals» CACM, vol 26(11) Nov.Google Scholar
  2. 2.
    Barrera R., Frank A., Al-Taha K., 1991 «Temporal relations in GIS, a workshop at the University of Maine», ACM, SIGMOD, Vol 20, N∘ 3.Google Scholar
  3. 3.
    Cheylan J.-P. Desbordes-Cheylan F. 1980 «From data sources to questioning in temporal data bases with cognitive aims», in Data bases in the Humanities and social sciences, North-HollandGoogle Scholar
  4. 4.
    Cheylan J.-P. Desbordes-Cheylan F. 1982 «Banques de données et informations administratives pour une observation continue des espaces péri-urbains» in Cahiers de l'OCS, Vol 10, ed: CNRS.Google Scholar
  5. 5.
    CHEYLAN J. P., DEFFONTAINES J. P., LARDON S., SAVINI I., 1990. «Les pratiques pastorales d'un berger sur l'alpage de la Vieille selle: un modèle reproductible ?» Mappemonde 90/4, pp 24–27.Google Scholar
  6. 6.
    DEFFONTAINES J. P., LARDON S., 1989. «Grasslands and agrarian systems. methodological considerations on space in the management of grasslands.» in ‘Grassland systems approaches. Some french research proposals.’ Etudes et recherches sur les systèmes agraires et le développment. INRA Paris, pp 209–218.Google Scholar
  7. 7.
    Deffontaines J.-P., 1992, «Berger et troupeaux dans le Parc des Ecrins», Cahiers Agriculture, 1, 278–282.Google Scholar
  8. 8.
    Frank U.A., 1991, «Properties of geographic data: requirementsfor spatial access methods», in Advances in Spatial Databases, Günther O. and Schek eds, LNCS, Springer.Google Scholar
  9. 9.
    GUERIN G., BELLON S., 1989. «Analysis of the functions of pastoral areas in forage systems in the mediterranean region.» in ‘Grassland systems approaches. Some french research proposals.’ Etudes et recherches sur les systèmes agraires et le développment. INRA Paris, pp 147–156.Google Scholar
  10. 10.
    HUBERT B., MEOT A., HAVET A., LASSEUR J., COPPEL B., 1989.«Grazing systems and flmock management: patterns of land use practices revealed by a holistic approach». in ‘Grassland systems approaches. Some french research proposals.’ Etudes et recherches sur les systèmes agraires et le développment. INRA Paris, pp 157–169.Google Scholar
  11. 11.
    LANDAIS E., DEFFONTAINES J. P., LEROY A., 1988. «Un berger parle de ses pratiques.» Série Doc de travail INRA, Versailles, 111p.Google Scholar
  12. 12.
    LANDAIS E., DEFFONTAINES J. P., 1989. «Analysing the management of a pastoral territory. The study of the practices of a shepherd in Southern french Alps.» in ‘Grassland systems approaches. Some french research proposals.’ Etudes et recherches sur les systèmes agraires et le développment. INRA Paris, pp 199–207.Google Scholar
  13. 13.
    Langran G., 1992, «Time in GIS», Taylor and Francis.Google Scholar
  14. 14.
    MEURET M., MIELLET P., MAITRE P., MAZUREK H., 1992. «Diagnostic sur une pratique de gardiennage de troupeau caprin en milieu boisé», in Buche P., King D., Lardon S. Editeurs, ‘Gestion de l'espace rural et système d'information géographique'. INRA, Paris, pp 109–119.Google Scholar
  15. 15.
    OSTY P. L., LANDAIS E., 1993.«Fonctionnement des systèmes d'exploitation pastorale». Rapport au 4e Congrès International des terres de Parcours, Montpellier, France, Avril 1991.Google Scholar
  16. 15a.
    OSTY P. L., LARDON S., 1992. «Systèmes techniques et gestion de l'espace. Les élevages ovins du Causse méjan (Lozère).» in Buche P., King D., Lardon S. Editeurs, ‘Gestion de l'espace rural et système d'information géographique'. INRA, Paris, pp 39–51.Google Scholar
  17. 16.
    Snodgrass, R. 1987: «the temporal query language TQuel» ACM trans. on Dadabase Systems, vol 12, pp 247–298.Google Scholar
  18. 17.
    Vieu L., 1991, «Sémantique des relations spatiales et inférence spatio-temporelles. Thèse, Univ P. Sabatier, Toulouse.Google Scholar
  19. 18.
    Vrana R., 1989 «Historical data as an explicit component of land information systems» I.J.G.I.S., Vol 23, N∘ 1.Google Scholar
  20. 19.
    Yeh T.S., Viémont Y.H. 1991 «Temporal aspects og geographical databases. EGIS 91Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • Jean-Paul Cheylan
    • 1
  • Sylvie Lardon
    • 2
  1. 1.GDR CASSINI and GIP RECLUS andMontpellierFrance
  2. 2.GDR CASSINI and INRA-SADAuzeville CedexFrance

Personalised recommendations