基于清代故宫旱灾档案的中国旱灾时空格局

Spatial-temporal pattern of drought hazards in China's Qing dynasty based on forbidden city archives

  • 摘要: 气候变化背景下的旱灾时空格局研究受到政府和学术界的高度重视。利用清代故宫旱灾档案建立了清代旱灾数据库,运用GIS技术重建了1689-1911年中国旱灾时空格局。研究表明:① 从旱灾发生的时间上看,受灾范围呈现3次较大波动,出现了9个干旱灾害典型年;② 从旱灾发生的空间上看,旱灾频发中心主要集中在3个区域,即西北地区的甘肃、宁夏,华北地区的山东、河北、河南、天津,以及江淮地区的安徽、江苏;③ 从干旱灾害发生的季节上来看,夏季旱灾是清代干旱灾害的主导类型。研究结果认为利用故宫旱灾档案复原的清代旱灾时空格局基本符合史实。

     

    Abstract: The study of spatial-temporal pattern of drought hazards has attached great importance to government and academia in China under a changing climate. The spatial-temporal pattern of drought hazards in China for the period 1689-1991 is reconstructed using the data extracted from the drought hazard document archived in the Forbidden City during the Qing dynasty, and the geographic information system (GIS) technique. The result shows that ① the areal extent of drought fluctuated three times with time during the study period, and a total of 9 typical drought years were identifiable from the reconstructed data; ② spatially, three drought-prone regions were found. These regions were in northwest China covering the Gansu province and the Ningxia-Hui Autonomous Region, in north China including the provinces of Shandong, Hebei and Henan as well as Tianjin Municipality, and in the Jianghuai area of Anhui and Jiangsu provinces; ③ seasonally, summer droughts were dominant during the Qing dynasty. The reconstructed spatial-temporal pattern of drought hazards based-on Forbidden City archives is in line with the historical facts during the Qing dynasty.

     

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