Open space development (environmental atlas)

Presentation of the open space development from 1945 to 2020 by use categories of the environmental atlas. The free space losses are shown in time intervals, the free space gains relate to the entire period. The status “before 1945” means the state of use in 1945 without war-related destruction. Therefore, due to war damage, fallow areas are not considered as open areas of the state of use “before 1945”.本数据集基于环境地图集（environmental atlas）的用地分类标准，呈现了1945年至2020年的开放空间发展演变情况。开放空间的减少量按时间区间展示，而开放空间的增加量则以整个研究周期为统计范围。"1945年以前"这一状态指的是未受战争破坏的1945年用地现状。因此，受战争损毁影响，休耕地不计入"1945年以前"用地状态下的开放空间范畴。