Food security and fortunes depend on sufficient rain, and nowhere more so than in Africa, where 96% of farmland depends on rain instead of the irrigation common in more developed places.

粮食的安全和命运依赖于充足的雨水，在非洲尤其如此。在那里，96%的农田依赖于降雨，而不是较发达地区常见的灌溉。

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Wireless systems on farmland will measure temperature and humidity and control irrigation systems.

农田里的无线电系统能测量温度和湿度，同时控制灌溉系统。

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Farmland is being watched and irrigation systems are being switched on and off remotely.

新技术也应用到了农场，灌溉系统业可以实现远程开关了。

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Much depends on climate, how much water a country has, whether farmland needs irrigation and so on.

ECONOMIST: Measure for measure | The

"It is very difficult to state an economic figure for such a large area when so much damage has been done to vineyards, orchards, farmland, irrigation systems and the local bush" said Winelands chief fire officer Donny Wilds.

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