Few studies have used aerial imagery or various statistical records to analyse temporal land use and vegetation dynamics over large areas. This study presents an innovative approach that merges national-scale data to provide temporal and spatial digital information on land use and vegetation cover change at high resolution. The work includes 326 historical aerial photographs from 1957 and 1980, derived digital terrain models, digital orthophotos (from 1994 to 1997), current land use (available from 2006), and forestry databases. Using two case studies in Slovenia, a detailed procedure for data preparation, processing (including orthorectification, on-screen digitisation, visual photointerpretation), and result generation is presented. The used multiple sources showed great potential for the acquisition, mapping and quantifying selected land use categories. The study provided very important material for land use change assessment and implementation of the national documentary heritage. Although the processing methods were time-consuming, they proved to be very suitable for delineating polygons of change with a spatial resolution of at least 1 m. The results show that the forest in the Rižana catchment has increased by 30 percentage points in the last 60 years and that in the Unica catchment 2/3 of the forest was damaged by large-scale disturbances in 2014–2018.

中文翻译：

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从不同数据源推断植被和土地利用的数十年变化：斯洛文尼亚喀斯特区域尺度的两个案例研究


很少有研究使用航空图像或各种统计记录来分析大面积的时间土地利用和植被动态。这项研究提出了一种创新方法，融合了国家规模的数据，以高分辨率提供有关土地利用和植被覆盖变化的时空数字信息。该作品包括 1957 年至 1980 年的 326 张历史航空照片、衍生的数字地形模型、数字正射影像（1994 年至 1997 年）、当前土地利用（自 2006 年起提供）和林业数据库。通过斯洛文尼亚的两个案例研究，介绍了数据准备、处理（包括正射校正、屏幕数字化、视觉照片判读）和结果生成的详细程序。所使用的多种来源在采集、绘图和量化选定的土地利用类别方面显示出巨大的潜力。该研究为土地利用变化评估和国家文献遗产的实施提供了非常重要的资料。尽管处理方法非常耗时，但事实证明它们非常适合描绘空间分辨率至少为 1 m 的变化多边形。结果显示，里扎纳流域的森林在过去60年里增加了30个百分点，而乌尼卡流域2/3的森林在2014年至2018年期间因大规模干扰而遭到破坏。