Digital CIR aerial mapping in Gesäuse National Park — Final report

The aim of this project was initially to create a comprehensive aerial image interpretation of biotope and usage types in the Gesäuse National Park on a scale of 1:3,000. Initially, between May and November, 125 km were divided into approximately 7,382 areas and these were interpreted according to the second version of the Habitalp interpretation key. As an additional contract, the extensions of the Natura2000 site were commissioned at the beginning of 2006. The Natura2000 site largely corresponds to the national park boundaries, in a few smaller areas the national park is larger, in some areas the Natura2000 border (especially in the southwest and northwest). Therefore, in contrast to the processing of the national park, the number of polygons, the area size and the statistics of habitat types change for the present study. In essence, however, the character of the landscape remains the same, and thus also the relation of the area sizes. With this work, the National Park has a planning basis from which surface knowledge can be filtered out (natural spatial units, forest boundary, dominating habitats..). Thus, the admission is suitable as a general planning basis, the basis for Natura-2000 surveys and other nature conservation issues, and also allows statements about the structure and composition of the biotopes in the national park.本项目初始目标为针对格塞尔山国家公园（Gesäuse National Park）开展比例尺1:3000的生境（biotope）与用地类型全面航空影像解译。项目初期（5月至11月期间），将总长125公里的解译区域划分为约7382个地块，并依据Habitalp解译手册第二版完成解译工作。 作为附加委托任务，项目于2006年初承接了Natura2000保护地（Natura2000）范围拓展的相关工作。该Natura2000保护地范围与国家公园边界基本吻合，仅在少量小型片区内国家公园范围更大，另有部分区域（尤其西南与西北片区）的Natura2000边界范围更小。因此，相较于国家公园本体的解译流程，本研究中的矢量多边形数量、面积规模及生境类型统计数据均有所变化。但从本质而言，区域景观的整体特征未发生改变，面积占比关系亦保持一致。 通过本次解译工作，格塞尔山国家公园可获得一套可提取地表空间信息的规划基底，可从中筛选提取自然空间单元、森林边界、优势生境等信息。该成果可作为通用规划依据、Natura2000调查及其他自然保护工作的基础支撑，同时能够阐释该国家公园内生境的结构与组成特征。