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  • 标题:Economic Aspects of Some Groundwater Disposal Options for Irrigated Dairy Farms: A Preliminary Evaluation
  • 本地全文:下载
  • 作者:Gyles, Oliver
  • 期刊名称:Journal of Food Distribution Research
  • 印刷版ISSN:0047-245X
  • 出版年度:2001
  • 出版社:Food Distribution Research Society
  • 摘要:Net annual costs for disposal by pumping to the Murray River, an on-farm evaporation basin, conjunctive use with surface water to irrigate dairy pasture, and undiluted irrigation of a salt tolerant grass were estimated and compared. Total conjunctive use (TCU) is the cheapest option below 10dS/m groundwater salinity. TCU becomes more expensive than river disposal above 10 dS/m and than total evaporation above 15 dS/m. Above 10 dS/m, partial conjunctive use with disposal of some groundwater by irrigating salt tolerant forage is similar in cost to river disposal and less expensive than total on-farm evaporation. Farm and regional perspectives for optimising sustainable salt management are discussed.
  • 关键词:salinity;groundwater;Murray River;evaporation basin;conjunctive use
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