Rising competition for crop usage presents policy challenges exacerbated by poor understanding of where crops are harvested for various uses. Here we create high-resolution global maps showing where crops are harvested for seven broad use categories—food, feed, processing, export, industrial, seed and losses. Yields for food crops are low relative to other crop-use categories. It is unlikely, given current trends, that the minimum calorie requirement to eliminate projected food undernourishment by 2030 will be met through crops harvested for direct food consumption, although enough calories will be harvested across all usages. Sub-Saharan African nations will probably fall short of feeding their increased population and eliminating undernourishment in 2030, even if all harvested calories are used directly as food.

对作物使用的日益激烈的竞争提出了政策挑战，因为对作物的收获地点了解不多以用于各种用途而加剧了政策挑战。在这里，我们创建了高分辨率的全球地图，显示了七大用途类别（食品、饲料、加工、出口、工业、种子和损失）的作物收获地点。与其他作物用途类别相比，粮食作物的产量较低。鉴于目前的趋势，到 2030 年消除预计食物营养不足的最低卡路里需求不太可能通过收割用于直接食用的作物来满足，尽管所有用途都会收获足够的卡路里。到 2030 年，撒哈拉以南非洲国家可能无法养活不断增加的人口并消除营养不良现象，即使所有收获的卡路里都直接用作食物。