Least cost land-use changes for targeted catchment salt load and water yield impacts in south eastern Australia

Nordblom, Thomas L.; Christy, Brendan; Finlayson, John D.; Roberts, Anna; Kelly, Jason A.

doi:10.1016/j.agwat.2009.12.015

Cited by 24 publications

(16 citation statements)

References 21 publications

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“…A fully functioning water market with a cap on resource use, where reforestation must compete with other water users (i.e. urban, industry, irrigated agriculture) for scarce water resources, is likely to be more efficient (Nordblom et al ., ). However, we did not model this policy as it is only operational in fully subscribed catchments in the study area such as parts of the Murray–Darling Basin.…”

Section: Discussionmentioning

confidence: 97%

Land use efficiency: anticipating future demand for land‐sector greenhouse gas emissions abatement and managing trade‐offs with agriculture, water, and biodiversity

Bryan

Crossman

Nolan

et al. 2015

Global Change Biology

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Competition for land is increasing, and policy needs to ensure the efficient supply of multiple ecosystem services from land systems. We modelled the spatially explicit potential future supply of ecosystem services in Australia's intensive agricultural land in response to carbon markets under four global outlooks from 2013 to 2050. We assessed the productive efficiency of greenhouse gas emissions abatement, agricultural production, water resources, and biodiversity services and compared these to production possibility frontiers (PPFs). While interacting commodity markets and carbon markets produced efficient outcomes for agricultural production and emissions abatement, more efficient outcomes were possible for water resources and biodiversity services due to weak price signals. However, when only two objectives were considered as per typical efficiency assessments, efficiency improvements involved significant unintended trade-offs for the other objectives and incurred substantial opportunity costs. Considering multiple objectives simultaneously enabled the identification of land use arrangements that were efficient over multiple ecosystem services. Efficient land use arrangements could be selected that meet society's preferences for ecosystem service provision from land by adjusting the metric used to combine multiple services. To effectively manage competition for land via land use efficiency, market incentives are needed that effectively price multiple ecosystem services.

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Section: Discussionmentioning

confidence: 97%

Land use efficiency: anticipating future demand for land‐sector greenhouse gas emissions abatement and managing trade‐offs with agriculture, water, and biodiversity

Bryan

Crossman

Nolan

et al. 2015

Global Change Biology

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“…Many programs are intended to develop a river basin or to expand the scale or scope of an existing set of water uses. For example, a larger scale occurs if an environmental regulation on water pollution is tightened, as shown for a recent study on salinity control in Austraha (Nordblom et al, 2010). A larger scope could occur if it apphes to a wider geographic region or more economic sectors.…”

Section: Equimarginal Principlementioning

confidence: 93%

Cost–benefit and water resources policy: a survey

Ward

2011

Water Policy

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This paper reviews recent developments in cost-benefit analysis for water policy researchers who wish to understand the applications of economic principles to inform emerging water policy debates. The cost-benefit framework can provide a comparison of total economic gains and losses resulting from a proposed water policy. Cost-benefit analysis can provide decision-makers with a comparison of the impacts of two or more water policy options using methods that are grounded in time-tested economic principles. Economic efficiency, measured as the difference between added benefits and added costs, can inform water managers and the public of the economic impacts of water programs to address peace, development, health, the environment, climate and poverty. Faced by limited resources, cost-benefit analysis can inform policy choices by summarizing trade-offs involved in designing, applying, or reviewing a wide range of water programs. The data required to conduct a cost-benefit analysis are often poor but the steps needed to carry out that analysis require posing the right questions.

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“…Many of the world's delta irrigation districts have severe salinization problems, due in part to rising sea levels, including, as examples, those at the mouths of the Colorado , Ganges (Seraj and Salam, 2000), Indus (Qureshi et al, 2008), Murray (Nordblom et al, 2010), and Nile (Bohannon, 2010), rivers. Paddy rice is often planted in salinized portions of these districts as part of the soil restoration process.…”

Section: Potential As An Agronomic Cropmentioning

confidence: 98%