Bangkok’s Thammasat University, one of the oldest in Thailand, has a new claim to fame: Asia’s largest urban rooftop farm.
The 7,000m2 space mimics rice terraces in northern Thailand and can help curb some of the effects of climate change, such as frequent flooding, said Kotchakorn Voraakhom, the landscape architect behind the project.
“We tend to make a distinction between buildings and green spaces, but green spaces can be part of building design in cities like Bangkok, which has few green spaces,” the Landprocess founder and chief executive said.
“Rooftops are usually underutilized, but they can be green spaces that reduce the urban heat-island effect, the environmental impacts of buildings and land use, and also feed people,” she said ahead of the farm’s opening yesterday.
Bangkok, built on the floodplains of the Chao Phraya River, is forecast by climate experts to sink by more than 1cm annually and become one of the urban areas to be hit hardest by extreme weather conditions in the coming years.
Nearly 40 percent of the Thai capital might become flooded each year by 2030 due to more intense rainfall, according to the World Bank estimates.
Flooding in many parts of Bangkok is already common during the annual monsoon. The rains in 2011 brought the worst floods in decades, putting one-fifth of the city under water.
It was after that disaster that Kotchakorn began thinking more about climate-resilient green spaces.
She has designed Bangkok’s first new public park in decades — a 4-hectare space at Chulalongkorn University that can hold up to 3.8 million liters of rainwater.
The rooftop farm at Thammasat University in Rangsit, about 40km from Bangkok’s city center, is open to anyone who wishes to grow rice, vegetables and herbs, said Prinya Thaewanarumitkul, a vice rector at the university.
“Thailand is an agricultural society, but in the cities we are so cut off from the source of our food. With rooftop farms, we can also improve urban food security,” he said.
With more than two-thirds of the world’s population forecast to live in cities by 2050, according to the UN, urban agriculture could be critical.
Urban farms could supply almost the entire recommended consumption of vegetables for city dwellers, while cutting food waste and reducing emissions from transportation of agricultural products, according to a study published last year.
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