今年以来,全球范围内极端天气和自然灾害频发。俄罗斯、乌克兰、哈萨克斯坦、加拿大、澳大利亚等主要小麦出口国分别遭遇多年罕见的干旱、水灾、蝗灾,全球粮食减产预期加重,资本入市炒作,加之俄罗斯宣布禁止粮食出口,导致最近国际粮价暴涨。 Since the beginning of this year, extreme weather and natural disasters have been frequent in the world. Many major wheat exporters such as Russia, Ukraine, Kazakhstan, Canada and Australia have suffered rare years of drought, floods and locust plague respectively. Expected global grain output cuts and capital market speculation, together with the announcement of a ban on food exports in Russia, have led to soaring international food prices recently.