Soil salinity and sodicity effects of wastewater irrigation in South East Australia
Soil salinity and sodicity effects of wastewater irrigation in South East Australia
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DOI：
10.1016/j.agwat.2011.07.021
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发表时间：
2011-11
期刊：
影响因子：
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通讯作者：
Z. Muyen;G. Moore;R. Wrigley
中科院分区：
文献类型：
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作者：
Z. Muyen;G. Moore;R. Wrigley
虽然“污水农业”或废水灌溉始于澳大利亚的世纪后期，但由于替代水源的稀缺和增加当地粮食产量的紧迫性，在20世纪60年代后期，世界干旱和半干旱地区恢复了相当大的兴趣。这种做法在节约用水、养分循环利用、防止地表水和地下水污染等方面具有多方面的好处。但对于干旱和半干旱地区，如澳大利亚的许多地区，虽然废水灌溉可以是一个有吸引力的解决灌溉水问题的方案，但它可能不是这些地区常见土壤类型的理想解决方案。由于降雨量少，蒸发量大，淋溶量低，这些土壤往往有较高的盐分积累。本文探讨了典型的土壤类型，澳大利亚东南部的污水灌溉的土壤盐分和碱度的影响，并以西部污水处理厂（WTP）的土壤作为案例研究，以突出这些问题。
Although ‘sewage farming’ or wastewater irrigation started in Australia in the latter parts of the 19th century, it was in the late 1960s that a considerable interest was revived in arid and semi-arid parts of the world due to scarcity of alternative water sources and the urgency to increase local food production. The practice has manifold benefits in the form of water conservation, nutrient recycling, surface and ground water pollution prevention. But for arid and semi-arid regions like many parts of Australia, while wastewater irrigation can be an attractive solution to irrigation water problems, it might not be the ideal solution for the common soil types encountered in these regions. Due to characteristic low rainfall, high evaporation and low leaching, these soils tend to have higher salt accumulations. This paper examines the soil salinity and sodicity effects of wastewater irrigation in soil types typical to South Eastern Australia and takes the soils of Western Treatment Plant (WTP) as a case study to highlight these issues.