Hong Kong is one of the most densely populated cities in the world. Land is a scarce resource, making it impossible to supply enough locally grown crops to feed everyone. One solution lies in vertical farms in specially constructed tall buildings where vegetables can be grown without soil.
A typical configuration of a vertical farm includes a complex of glass-walled skyscrapers where crops are grown hydroponically. Racks of plants are rotated automatically to get even exposure of sunlight. A system of lighting with LEDs is in place to replicate sunlight for photosynthesis during cloudy days. There will be a control centre to monitor the overall running of the facility and a laboratory to test for food quality and safety. A restaurant setting up in the same facility to demonstrate the epitome of farm-to-table dining can be a bonus option.
It is believed that vertical farming could prevent food shortages in an environmentally sound way, as the amount of water used is much less than traditional cultivation. As crops are grown in a controlled environment, they are unaffected by extreme weather, such as droughts and floods. Pesticide is not necessary, so food safety is no longer an issue. We can also reduce the carbon footage of importing fruit and vegetables from afar.
| JPC Monthly Newsletter | |
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