自然资源遥感2025，Vol.37Issue(2)：212-219,8.DOI:10.6046/zrzyyg.2023322
大兴安岭反照率对森林火灾的响应变化分析
Analysis of surface albedo responses to forest fires in the Great Xing'an Range,China
摘要
Abstract
To explore the surface albedo responses to forest fires in the Great Xing'an Range,China,this study investigated the forest fire occurring in the zone under the supervision of the Jinhe Forestry Bureau on May 5,2003.The changes in the surface albedo after the forest fire were analyzed based on the global land surface satellite(GLASS)-derived surface albedo and leaf area index(LAI)data.The results indicate that the surface albedo in the burned zone decreased in the short term(1a)but increased significantly at a rate of 0.001 2/a in the mid-to-long term(10 a).The increasing trend in the surface albedo was slightly influenced by contemporaneous climate changes and human activities but was closely associated with the vegetation restoration process after the forest fire.Moreover,the increase in the surface albedo in the burned zone was highly correlated with LAI increase(r=0.682,p＜0.01).Additionally,the vegetation masking effect further enhanced the increasing trend in surface albedo in the burned zone during the snow-covered period.Overall,the results of this study deepen the understanding of spatiotemporal variations in the surface albedo,laying a foundation for thoroughly assessing the influence of forest fires on global climate changes.关键词
地表反照率/森林火灾/GLASS数据/植被掩模效应/大兴安岭地区Key words
surface albedo/forest fire/GLASS data/vegetation masking effect/Great Xing'an Range分类
信息技术与安全科学引用本文复制引用
陈雪娇,张恺桐,王娇,王沐楠,瞿瑛..大兴安岭反照率对森林火灾的响应变化分析[J].自然资源遥感,2025,37(2):212-219,8.基金项目
国家自然科学基金项目"北极海冰反照率建模与遥感估算方法研究"(编号:41971287)、"中国东北地区地表反照率对气候变化的响应与反馈遥感监测分析"(编号:41601349)和吉林省教育厅科学研究项目"面向季节性降雪区的高时空分辨率地表反照率遥感数据集生成方法研究"(编号:JJKH20231306KJ)共同资助. （编号:41971287）
