由于未使用适宜土地已所剩无几，现有农地日益受到风化和流失，因此可持续集约化十分关键（即在提高庄稼产量的同时使用更少资源、最小化环境破坏 ） 。
Given that little suitable land remains unused, and that much of what is being farmed is increasingly degraded and eroded, investment in sustainable intensification (systems for increasing crop yields, while using fewer resources and minimizing environmental damage) is crucial.