Mixing clay into soil has long been used to restore dry farmland but the process can take seven to 15 years to complete.

长期以来的做法都是将粘土混合到土壤中用于恢复旱田，但这一过程可能需要7到15年才能完成。

And we're seeing some effects today too: as much as one-quarter of all irrigated dry farmland on Earth experiences reduced yields due to salt.

地球上 1/4 的灌溉旱田正因盐分而减少产量。

But regardless of whether we alternate them spatially or temporally, we will most likely need to rely on drought-adapted native plants to help preserve the large swaths of dry, increasingly-salty farmland that produce a third of the world's food.

但是，无论我们打算如何进行时间或空间交替种植，都需要依赖耐旱本土植物帮我们保护大片干燥、盐分日增的农田——它们可是世界上 1/3 食物的来源。