Landscape patterns and agriculture: Modelling the long-term effects of human practices on Pinus sylvestris spatial dynamics (Causse Mejean, France)

Research output: Contribution to journalArticle

Abstract

This paper focuses on understanding human impact on landscape. Both ecological and human practices are analysed as interacting processes. An agent-based model integrating biological and historical knowledge is used to analyse the pattern of Scots Pine encroachment in a French Mediterranean upland. In the STIPA model, pine trees are autonomous agents and a cellular automaton simulates land-use. We test the effects of shifting cultivation on tree establishment at the landscape scale. This allows us to understand how agropastoral practices patterned this area from the 17th to 19th century: simulations show the importance of shifting cultivation in limiting woodland progression. Fallow duration linked to environmental heterogeneity is a significant factor for explaining pine dynamics and landscape patterning at the scale of the study region. We put this result in perspective with current rangeland management policies that often consider grazing as the most relevant tool for open landscape maintenance. Our results also show the importance of taking into account time-scale effects when linking landscape patterns to agricultural systems.

Details

Authors
External organisations
  • Centre d'Ecologie Fonctionnelle et Evolutive (CEFE)
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Agricultural Science, Forestry and Fisheries
  • Ecology

Keywords

  • Agriculture, Bioscene, French Mediterranean, Grazing, Land-use, Landscape history, Multi-agent systems, Rangeland, Scots Pine, Shifting cultivation, Time-lag
Original languageEnglish
Pages (from-to)657-670
Number of pages14
JournalLandscape Ecology
Volume21
Issue number5
Publication statusPublished - 2006 Jul
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes