FVA gaps and stock height type

The data set is used to identify forest gaps in high and low stocks. The aim was to map potentially biodiversity-relevant gaps (from 10 m²) with a rough definition of stock height types. The tool first identifies three different stock height types: High stocks (high_forest), low stocks (low_forest) and light forest (open_forest). Gaps are identified within the high and low stocks (gap_high and gap_low). The FVA gaps and stock height types are calculated from aerial images of flotations over the last 3 years and updated annually.本数据集旨在识别高、低林分中的林隙（forest gaps）。其研究目标为绘制与生物多样性相关的潜在林隙（面积不小于10平方米），并对林分高度类型进行粗略界定。该工具首先识别三类林分高度类型：高林分（high_forest）、矮林（low_forest）以及疏林（open_forest）。随后在高林分与矮林范围内识别林隙，分别记为gap_high与gap_low。 FVA林隙与林分高度类型基于近三年的航空影像数据计算生成，并按年度更新。