福州大学学报（自然科学版）2026，Vol.54Issue(3)：269-275,7.DOI:10.7631/issn.1000-2243.25210
2001-2020年福建省森林干扰时空格局及影响因素分析
Spatiotemporal patterns and driving factors of forest disturbance in Fujian Province,2001 to 2020
摘要
Abstract
To address the issue of unclear spatial differentiation and driving mechanisms of forest disturbance intensity in Fujian Province,this study applies the LandTrendr algorithm to identify forest disturbances in Fujian Province from 2001 to 2020 and computes county-level forest disturbance intensity by weighting disturbed area with the differenced normalized burn ratio(dNBR).Building on this metric,we employ a random forest(RF)model coupled with accumulated local effects(ALE)to examine the primary drivers of disturbance intensity.The results indicate that the hotspots of high-intensity disturbance in Fujian Province are distributed in the coastal areas and Nanping City.The RF model demonstrates a good fit for forest disturbance intensity,with R2 greater than 0.9,topography and climate are the main influencing factors of forest disturbance intensity.关键词
森林干扰/LandTrendr算法/随机森林模型/局部累积效应/福建省Key words
forest disturbances/LandTrendr algorithm/random forest model/accumulated local effects/Fujian Province分类
农业科技引用本文复制引用
张怡茹,周小成..2001-2020年福建省森林干扰时空格局及影响因素分析[J].福州大学学报（自然科学版）,2026,54(3):269-275,7.基金项目
福建省科技厅高校产学合作资助项目(2022N5008) （2022N5008）
