Analysis of drought risk based on the information diffusion theory
XIAO Xumu, KONG Lan
1. China Water Resources Pearl River Planning Surveying and Designing Co., Ltd., Guangzhou 510610; 2. Center for Water Ecological Engineering, Pearl River Water Resources Commission of the Ministry of Water Resources, Guangzhou 510610
Abstract：In this paper, the drought risk rates in the upper reach of the NanPanjiang River in the Pearl River Basin were calculated using the information diffusion risk model, and the characteristics of drought risk in thesame reachr are analyzed quantitatively. The results shows: ①The average drought risk rate increase obviously on the upper reach of the NanPanjiang River Basin, which from 1994 to 2010 is 21% higher than that of 1956-1993; ②in the upper reaches of the NanPanjiang River, there are significant interdecadal variations of the drought risk rate; the drought risk rate is higher in the 1990s and 2000s, and the drought risk rate is lower in the 1970s and 1980s; ③The drought risk in the reach is not only affected by climate change, but also by human activities.
肖许沐, 孔兰. 基于信息扩散理论的干旱风险分析[J]. 中国防汛抗旱, 2023, 33(6): 80-82.
XIAO Xumu, KONG Lan. Analysis of drought risk based on the information diffusion theory. journal1, 2023, 33(6): 80-82.
2023, Vol. 33 
