Arid zone surface runoff – a significant resource in Australia
Arid zone surface runoff – a significant resource in Australia
复制标题
干旱地区地表径流——澳大利亚的重要资源
DOI：
10.1080/13241583.2004.11465242
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发表时间：
2004
影响因子：
3.2
通讯作者：
I. Cordery
中科院分区：
文献类型：
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作者：
I. Cordery
摘要 澳大利亚干旱区地表水资源丰富。例如，在新南威尔士州西部，每年平均观察到 7 次径流事件，其中径流深度中位数约为 0.4 毫米，即 400 立方米/平方公里，提供至少 2.8 毫升/平方公里/年的地表水。利用这些水的关键是在水发生时就地捕获它。简单的土方工程是用安装在拖拉机上的叶片建造的，可用于将水从天然小通道引导到一个集中点，在该集中点可以防止水蒸发和渗漏损失，例如在挖掘的孔或“水箱”中。即使储存的水损失了 90%，每天仍可提供至少 700 升/平方公里的持续供应，足以为澳大利亚普通家庭提供充足的供应。
Abstract The Australian arid zone has quite large resources of surface water. For example in western New South Wales an average of 7 runoff events are observed each year and in these the median depth of runoff is about 0.4mm, or 400m3/km2, providing at least 2.8 ML/km2/yr of surface water. The key to utilisation of this water is to catch it where it is, when it occurs. Simple earthworks, constructed with a blade mounted on a tractor, can be used to direct water from natural small channels to a point of concentration where it can be protected from evaporation and seepage losses, say in an excavated hole or “tank”. Even with 90% loss of the stored water a constant supply of at least 700 litres/km2/day would be available, enough to provide an adequate supply for the average Australian household.