Adapting grazing practices to limit the reforestation of mountainous summer pastures: A process-based approach
| Autor: | Julien Waddle, Laure A. Vacquié, Thomas Houet, Nicolas de Munnik, David Sheeren, Virginie Roussel |
|---|---|
| Přispěvatelé: | Géographie de l'environnement (GEODE), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J), Dynamiques Forestières dans l'Espace Rural (DYNAFOR), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure Agronomique de Toulouse-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National Polytechnique (Toulouse) (Toulouse INP), ANR-11-LABX-0010,DRIIHM / IRDHEI,Dispositif de recherche interdisciplinaire sur les Interactions Hommes-Milieux(2011) |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Environmental Engineering 010504 meteorology & atmospheric sciences Occupancy mountain Land cover 010603 evolutionary biology 01 natural sciences Natural (archaeology) Grazing Limit (mathematics) Baseline (configuration management) ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences validation 2. Zero hunger land cover change Agroforestry business.industry Ecological Modeling scenarios Reforestation 15. Life on land simulation [SDE.ES]Environmental Sciences/Environmental and Society 13. Climate action Agriculture pyrenees Environmental science business Software |
| Zdroj: | Environmental Modelling and Software Environmental Modelling and Software, Elsevier, 2016, 84, ⟨10.1016/j.envsoft.2016.05.006⟩ Environmental Modelling and Software, Elsevier, 2016, 84, pp.395-411. ⟨10.1016/j.envsoft.2016.05.006⟩ |
| ISSN: | 1364-8152 |
| DOI: | 10.1016/j.envsoft.2016.05.006 |
| Popis: | European mountain landscapes are experiencing massive land-use changes and high rates of natural reforestation since the 1950s. Summer pastures are particularly sensitive to those dynamics since their natural state depends on human activities. A process-based model - SHIELD (Simulating Herd Impact on Encroachment in upLanD) - has been developed to identify the key leverages of pastoral practices to limit the natural reforestation in the Haut-Vicdessos (Pyrenees Mountains, France). Simulations are compared to observed land cover changes to validate the model's structure. Scenarios are simulated to assess various grazing practices on reforestation dynamics: a baseline scenario and three scenarios with contrasted pastoral management: (i) reintroducing herds with no human supervision, (ii) reintroducing herds supervised by a shepherd and (iii) increasing the cattle load without supervision. Results show that supervising the intensity of land units' occupancy can be as efficient as increasing the cattle load to limit the ongoing trends of reforestation. A process-based model was developed to simulate interactions between grazing activities and land cover dynamics.Vegetation successions, cattle activity and tree growth processes are represented through the SHIELD model.The model integrates knowledge from local experts, agricultural practices and remote sensing data.Scenarios are developed to assess various grazing practices on reforestation dynamics.Grazing routines may be more efficient to limit reforestation than grazing intensity. Results highlight the influence of grazing intensity and grazing routines to limit natural reforestation. |
| Databáze: | OpenAIRE |
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