1736-1911年中国水灾多发区分布及空间迁移特征
萧凌波

Spatiotemporal distribution of high flood risk areas in China, 1736-1911
Lingbo XIAO
图4 1796-1850年中国水灾频次核密度分布
Fig.4 Kernel density distribution of flood frequency in China, 1796-1850