Temporal and Spatial Distribution Characteristics and Meteorological Correlation of Forest Fires in Hunan Province From 2000 to 2018
Forest fires are significant disturbance factors in forest ecosystems,severely impacting forest structures and functions,ecological security,and socio-economic development.Based on forest fire and meteorological data from Hunan Province from 2000 to 2018,variance analysis and correlation analysis methods were used to analyze the characteristics of forest fires and their meteorological correlations across different years,seasons,months,time periods,regions,and cities in Hunan Province.The results show that the total number of forest fires in Hunan Province from 2000 to 2018 was 8437,exhibiting a trend of initially increasing,then decreasing,and finally stabi-lizing.There was a significant difference in the number of forest fires between the fire prevention period(October to April)and the non-fire prevention period(P＜0.05),with peaks in spring and winter.Forest fires mainly oc-curred between 13:00 and 18:00,with the central and southern regions of Hunan,especially Chenzhou,Shaoyang,Zhuzhou,and Yongzhou,being high-incidence areas.The frequency of forest fires was significantly correlated with monthly average temperature,monthly average maximum temperature,and monthly average minimum tem-perature(P＜0.05),showing an increase-decrease-increase trend with rising temperatures.However,there was no significant correlation between fire frequency and monthly total rainfall or monthly average wind speed.The re-search findings provide a scientific basis for forest fire management and fire prevention engineering construction in Hunan Province,offering references for the rational allocation of fire prevention resources and the formulation of fire prevention strategies.
forest firesspatiotemporal distributioninfluencing factorsmeteorological factorsHunan Province
NETL
NSTL
万方数据
