Sustainable food supplies

你需要知道的

• Farming happens at different scales: subsistence, small-scale and industrial, which is mostly grown for export.
• Polyculture grows several crops, sometimes with animals, on the same land; rice-fish fields in South-east Asia recycle nutrients naturally.
• Low-input systems like the Philippine rice terraces have lasted 2,000 years, while industrial monoculture relies on bought seed, fertiliser and herbicide.
• Intensive industrial farming can degrade soil and drain aquifers; agriculture uses most of the world's fresh water.
• Agroecology uses local knowledge and diverse, small-scale farming as a more sustainable way to feed people.

这个短片讲了

从 youtube-nocookie.com 播放。按下播放之前，YouTube 不会写入任何 cookie。