@article{Finlayson:10409,
      recid = {10409},
      author = {Finlayson, John D. and Bathgate, Andrew D. and Hoque,  Ziaul and Nordblom, Thomas L. and Theiveyanathan, Tivi and  Crosbie, Russell and Mitchell, David},
      title = {Farm and catchment scale effects of managing dry-land  salinity with pastoral and woody perennials},
      address = {2007},
      number = {418-2016-26456},
      series = {Conference Paper},
      pages = {30},
      year = {2007},
      abstract = {Dry land salinisation is a significant cause of land and  water degradation in Australia.
Changing land use from  annual to perennial crops has been widely proposed as  a
means to reduce land degradation and increase the  productivity of saline land.
However, in many areas annual  crops are financially more attractive than perennial
crops.  Increases in perennial crops might also reduce local stream  flows with adverse
effects on in-stream values. As such  salinity control is likely to involve significant
tradeoffs  between public and private costs and benefits. This paper  considers the
impact of planting differing areas of  pastoral and woody perennials on farm
profitability (P),  and water (W) and salt (S) exports from the Little River  catchment in
New South Wales (NSW), Australia. The analysis  uses two linear programming (LP)
models. The first model  represents a mixed crop and sheep system and the outputs  of
this model are integrated to provide inputs to a second  catchment level model. The
structure of the LP models is  described and an analysis of the potential for  perennials
to assist in salinity management is presented.  The implications of the analysis for
farm systems and  catchment scale changes in land use are considered.
The  study highlighted the importance of targeting management  decisions to individual
sub-catchments and of using  relatively detailed farm level models as part of  a
catchment level study. The potential for perennials to  contribute to profitable and
robust farm systems and to  reduce degradation to land from salt scalds and to  streams
arising with elevated discharge and wash-off of  salt is demonstrated.},
      url = {http://ageconsearch.umn.edu/record/10409},
      doi = {https://doi.org/10.22004/ag.econ.10409},
}