关键词: 杂粮, 生产集中度, 贸易集中度

Abstract: Understanding the situation of world minor grain production and trade in the past 10 years was very important to control the changes of world minor grain production and trade, and to study and judge the future pattern of world minor grain production and trade.Based on the statistical data of world minor grain production and trade in FAOSTAT database, the evolution of world minor grain production and trade situation in recent 10 years was analyzed, and the characteristics of world minor grain production and trade situation were summarized. It was found that in the past 10 years, the world's grain yield per unit area has increased, the total output has been increasing, and the total import and export trade volume has also shown an upward trend, but the price of import and export trade has decreased. The production concentration and trade concentration of single variety of minor grain were relatively high in the world. Major production and trade varieties of minor grain were not expected to change greatly. Major production areas and major trade areas were also expected to have no major changes, but the latter was partially adjusted. There were different production characteristics and trade characteristics among different varieties of gramineous grains, edible legume grains and different varieties in the world.

Key words: minor grain, production concentration, trade concentration