| Title | Biodiversity, resilience and the control of ecological-economic systems: the case of fire-driven rangelands |
| Publication Type | Journal Article |
| Year of Publication | 1997 |
| Authors | Perrings C, Walker B |
| Journal | Ecological Economics |
| Volume | 22 |
| Start Page | 73 |
| Pagination | 73-83 |
| Abstract | The loss of resilience in systems characterized by multiple equilibria is indicated by a discontinuous change in the state of the system, or the transition from one locally stable stae corresponding to a particular mix of species to another state corresponding to a different mix of species. The resilience of the system (the state of the range in this example) may be influenced by the management regime through its impact on the response to disturbances. The paper shows that optimal management of an even-driven system should be sensitive to the opportunities created by such events. |
Displaying 1 - 2 of 2 records found.
Title | Type |
|---|---|
Biodiversity, resilience and the control of ecological-economic systems: the case of fire-driven rangelands | Case |
| This paper advances a model to assess how grazing pressure in rangelands may lead to change in the ecological state of the range with a particular focus on fire-dependent semi-arid rangelands. The impact of management decisions on fire-dependent grasslands, such as active fire suppression policies or the incidental fire suppression effect caused by allocating higher stock densities, serve to reduce the build-up of fuel loads, inhibit fire and its regulating effect on shrub growth. The loss or... | 12 Oct 2021 |
Ecological-economic model for optimal control of fire-driven, semi-arid rangelands | Model |
| This is an ecological-economic model that endogenizes discontinuous change between states of fire-driven, semi-arid rangelands which may exist in varying degrees as grassland and woodlands depending partly on the given soil conditions. More sandy soils will result in woodlands, whereas clay soils will more likely result in grasslands. One of the critical features of this model is the existence and impact of fires on these different types of rangelands. Grasslands may build up biomass and create... | 01 Oct 2016 |