西南林业大学学报2024，Vol.44Issue(9)：157-164,8.DOI:10.11929/j.swfu.202311031
锡林郭勒草原火灾时空动态变化特征研究
Study on Spatio-temporal Dynamic Characteristics of Grassland Fires in Xilingol
摘要
Abstract
Mann-Kendall trend test and sliding t-test were used to analyze the trend and abrupt change of Xilingol grassland fire data from 1981 to 2018,and the quantile regression was used to study the altitude factor af-fecting the grassland fire area and finally obtained the change trend of Xilingol grassland fire in space.The results indicate that the number of grassland fires in Xilingol generally shows a"stepwise"decreasing trend,mainly oc-curring in spring and autumn,accounting for more than 90％of the total number of fires throughout the year.The abrupt change year in the entire year,fire prevention period and the spring grassland fires are from 1994 to 1995,the abrupt change in autumn occurred in 1990 and there were no abrupt change years in summer.Compared with the statutory fire prevention period,the fire risk period of Xilingol grassland shifted toward summer,and has a tendency to shorten.Xilingol grassland fires occur more frequently in East Uzhumqin Banner and West Uzhum-qin Banner,with an overall increasing trend from southwest to northeast,and the burned area has a decreasing trend with the increase of altitude.The study suggests that fire prevention publicity in the Xilingol grasslands should be strengthened before spring and autumn each year,and attention should be paid to summer fires.Focus on the prevention and monitoring of grassland fires in the low elevation areas of East Uzhumqin Banner,West Uzhumqin Banner and Xilinhot City,and reasonably allocate fire prevention resources.关键词
锡林郭勒/草原火灾/防火期/时空分布/变化趋势Key words
Xilingol/grassland fire/fire prevention period/spatio-temporal distribution/change trend分类
农业科技引用本文复制引用
班擎宇,张盟盟,张新宇,张恒..锡林郭勒草原火灾时空动态变化特征研究[J].西南林业大学学报,2024,44(9):157-164,8.基金项目
国家自然科学基金项目(32060344)资助 （32060344）
内蒙古自治区高等学校青年科技英才支持计划(NJYT24042)资助 （NJYT24042）
内蒙古农业大学基础学科科研启动基金项目(JC2021003)资助. （JC2021003）
