2001—2023年华东地区森林损失的遥感监测与时空特征分析
收稿日期: 2024-06-24
修回日期: 2024-11-02
网络出版日期: 2025-04-18
基金资助
中国地质调查局地质调查项目“华东地区自然资源动态监测与风险评估”(DD20230103);中国地质调查局地质调查项目“华东地区国土空间用途管制技术支撑与应用服务”(DD20230495);2023年度部省合作试点项目“长江干流(安徽段)非金属露天矿山生态修复成效评估技术方法研究”(2023ZRBSHZ008)
Remote Sensing Monitoring and Spatiotemporal Characteristics Analysis of Forest Loss in East China from 2001 to 2023
Received date: 2024-06-24
Revised date: 2024-11-02
Online published: 2025-04-18
森林损失是当代社会发展的重大威胁之一,探讨华东地区长期的森林损失模式对于森林管理和保护具有重要意义。基于高分辨率森林变化数据集(GFC),采用趋势分析与新兴时空热点分析等空间分析技术,系统分析华东地区森林损失的时空动态特征。结果表明:1)2001—2023年,华东地区森林损失总面积约为382.82万hm2,其中2001—2008年森林损失面积与斑块数量均快速增长,此后则表现为波动性变化。2)将研究区细分为10 km网格统计发现,森林损失主要表现为轻度和中度2种类型,呈现出小规模破碎化的空间分布特征。3)华东地区大部分区域的森林损失整体呈上升趋势,其中安徽省新出现的森林损失热点区域尤为明显。2001—2023年,华东地区的森林面积显著减少,特别是在福建省、江西省和安徽省的部分区域,森林损失以小规模破碎化形式逐年增加,亟需加强森林监测和保护。
王尚晓 , 牛晓楠 , 张明 , 张洁 , 宗乐丽 , 周墨 , 唐志敏 . 2001—2023年华东地区森林损失的遥感监测与时空特征分析[J]. 林草资源研究, 2024 , 0(6) : 54 -63 . DOI: 10.13466/j.cnki.lczyyj.2024.06.007
Forest loss is regarded as a significant impediment to contemporary social development.Understanding of the long-term patterns of forest loss in East China is essential for the forest management and conservation.By employing a high-resolution forest change dataset(GFC),this study examined the spatial and temporal dynamics of forest loss patterns in East China.This involved utilising spatial analysis techniques,including trend analysis and analysis of emerging spatiotemporal hotspots.1)From 2001 to 2023,the total area of forest loss in East China was approximately 3,828,200 hm2.Both the area of forest loss and the number of patches demonstrated a rapid increase from 2001 to 2008,followed by fluctuating changes.2)Statistical analysis based on 10 km grid divisions revealed that the primary types of forest loss were mild and moderate,characterized by small-scale fragmentation.3)Most regions in East China exhibited an increasing trend in forest loss,with emerging hotspots of forest loss in Anhui Province.Over the past two decades,the forest area in East China has undergone a notable decline,particularly in regions of Fujian,Jiangxi,and Anhui provinces.The observed forest loss exhibits a pattern of small-scale fragmentation and an increasing trend on an annual basis,underscoring the need for enhanced monitoring and protection measures.
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