“災有大小,而蝗旱爲最”〔1〕。蝗災是元代蟲災中最爲嚴重的災害,也是主要的自然災害之一。其發生的頻度和地域分佈均超過了前代。這既與元代的歷史氣候有關,也與太陽黑子活動密切相關。學界對元代蝗災發生史的研究取得了不少成果。王培華集中考察了元代北方,特别是華北區域内蝗蟲的空間分佈特點及羣發性,時間分佈特點與時聚性、周期性。楊旺生、龔光明、和付強分别探討了元代蝗災的時空分佈特徵〔2〕。以上成果或局限於北方區域,或對蝗 “Disaster size, and locust drought is the most ” [1]. Locust plagues were the most serious disaster in the Yuan Dynasty and one of the major natural disasters. Its frequency of occurrence and geographical distribution are more than the previous generation. This is not only related to the historical climate of the Yuan Dynasty, but also closely related to sunspot activities. The academic circles made a lot of achievements in the research on the history of the locust plague in the Yuan Dynasty. Wang Peihua focused on investigating the spatial distribution characteristics of locusts in the northern part of the Yuan Dynasty, especially in the North China region, and the characteristics of mass distribution, time distribution, temporal clustering and periodicity. Yang Wensheng, Gong Guangming, and Fu Qiang respectively explored the spatial and temporal distribution of locust disaster in the Yuan Dynasty (2). The above results are limited to the northern region, or against locusts