1876~1878年西北地区中西部干旱事件研究

从清代后期西北地区的历史文献中整理出1876~1878年气候信息和农业信息,即少雨或干旱等事件、蝗虫事件、歉收和饥荒事件。资料来源包括清代中央和新疆地方的档案,新疆、甘肃和宁夏的地方志,重要人物的文集等。结果显示1876~1878年西北地区中西部出现干旱及相关事件。将以上事件绘制成图,发现这些事件分布在甘肃、宁夏和新疆东部,最西可达新疆天山北麓中部。整体上,事件以1877年为范围最广、最为严重。在此次干旱事件中,西北地区中西部的经济社会受到的影响有限,只在部分县域出现粮食歉收和饥荒,未发生同期华北地区普遍存在的“奇荒”。

Drought Event in the Midwest Region of Northwest China in 1876-1878

There were many exceptional climate events all over the world in 1876-1878. Existing researches showed a huge controversy that the drought event in Northwest China based on different proxy data, such as historical documents and tree ring. To understand the spatial distribution of the drought event, this article collected the information of the climate and agriculture of the 1876-1878 from the historical documents in the Midwest Region of Northwest China in the late 19th century. The climatic information includes the event of the less precipitation and the event of the drought, and the agricultural information includes the event of the locust and the event of the poor harvest as well as famine. The historical documents are the central archives of the Qing dynasty and the local archives of the Xinjiang, and the local gazetteer of the Gansu, Ningxia and Xinjiang, and the collected works of the important person. Those events from historical documents were showed in the map. The result showed that event of less precipitation, drought, and locust appeared in the Midwest Region of Northwest China in 1876-1878. The historical documents suggested the spatial distribution of drought event and other related event in Gansu, Ningxia and eastern Xinjiang, and the most western distribution area was the middle of northern foot of Tianshan Mountains. And the most serious year of events was 1877. The drought events had less influence on the agriculture in the all area, and didn't lead to great famine in the Midwest Region of Northwest like North China.