Risk Analysis of the High Temperature Heat Damage in the Middle and Lower Reaches of Yangtze River Based on Information Diffusion
Abstract：Based on the reduction rate of rice from 1961 to 2008 of 85 production sites in the middle and lower reaches of Yangtze River region, using the information distribution method based on information diffusion theory, the paper analyzes the interdeeadal variation and spatial distribution of the risk of high temperature heat damage in the middle and lower reaches of Yangtze River region. The result shows that the risk value is lower relatively in 1960s and the occurrence of high temperature is less, and the risk value is high and damage is heavier after 2000. The tendency of the risk of high temperature heat damage is more serious with time variation. Greater risk of high temperature heat damage regions are mainly located in the study area, such as Anhui, Zhejiang, western and eastern Hubei, and northeastern and central Jiangxi. The risk value of Lishui and Yichang is more than 0.25 ; the risk of the regions such as southeastern Jiangsu, southwestern and northeastern Hunan is lower than that of other regions.
Keywords：high temperature heat damagemiddle and lower reaches of Yangtze Riverinformation diffusionrisk analysis
Publication Date：2012-03-14
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 8-14 )