Calcareous areas in Saxony in 1994

The data set contains the forest areas calcified in 1994 (calculation areas) in the Free State of Saxony. Per calcification area, the quantity of natural lime applied in tonnes per hectare, the date of implementation and the forest property type (land forest, private forest, etc.) is indicated at the time of limescale. Soil protection limestone has been carried out annually in Saxony since 1986 to compensate for the deep acidification of forest soils and prevent forest damage. On the basis of soil analyses and forest location conditions, the amount of limescale per calcification area is determined and the natural lime is applied by plane or helicopter between 1 July and 31 October. The data forms the basis for the digital calcification card for Saxony. Further information can be found in the leaflet on soil protection calcification, which is published by the state enterprise Sachsenforst.本数据集收录萨克森自由州1994年开展森林土壤石灰改良的地块（改良核算地块）。针对每一处石灰改良地块，数据集均标注了天然石灰施用量（单位：吨/公顷）、作业实施日期以及石灰改良实施时的森林权属类型（国有林、私有林等）。自1986年起，萨克森州每年均开展土壤保护型石灰施用作业，以弥补森林土壤的深度酸化问题，防范森林生态受损。相关人员会基于土壤分析结果与森林立地条件，确定每处改良地块的天然石灰施用量，并于每年7月1日至10月31日期间，通过飞机或直升机开展天然石灰喷施作业。本数据集是萨克森州森林土壤石灰改良数字卡片的编制基础。更多相关信息可查阅萨克森森林国有经营企业（Sachsenforst）发布的《土壤保护石灰改良工作手册》。