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Economic tradeoffs for managing offsite impacts of irrigation areas. 31
Robinson, David; Kahn, Shahbaz.
Many irrigation districts within the southern Murray Darling Basin have imposed external environmental impacts to adjoining landscapes, in particular, high watertables which cause salinity and increased waterlogging. These environmental impacts can cause losses in agricultural production and also degrade the natural ecosystem. Natural depressions are highly susceptible to these external impacts and are compounded by local flooding and ponding events. The level of investment in salinity and waterlogging mitigation works in excess of tangible benefits to protect or reclaim degraded depressions becomes a social choice between the community’s willingness to pay for the potential environmental benefits of the mitigation works and the level of degradation the...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/58201
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Managing Saline Groundwater Impacts from Irrigation - Designing and Testing Emissions Trading in Coleambally Irrigation Area 31
Whitten, Stuart M.; Khan, Shahbaz; Collins, Drew; Ward, John; Robinson, David.
Irrigated agriculture often leads to recharge to local and regional groundwater systems greater than what the systems can absorb, resulting in the development of shallow watertables causing salinity and waterlogging. Policy based on emissions trading offers one option for effective management of existing recharge externalities if effective property rights to diffuse emissions can be defined. In this paper we combine the conclusions drawn from biophysical research with economic principles underpinning emissions trading to present such a system. Allocation of net recharge contracts to irrigation farms will internalize the costs associated with saline aquifer impacts. Irrigators may reduce their compliance costs by creating or purchasing credits that reduce...
Tipo: Conference Paper or Presentation Palavras-chave: Salinity; Irrigation; Recharge; Tradable emissions; Cap and trade; Hydrologic-economic modelling; Experimental economics; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/9975
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