SERENA_EJPSOIL_AT_SOILSEALING_SEALINGDEGREE

The internal EJP SOIL project SERENA contributed to the evaluation of soil multifunctionality aiming at providing assessment tools for land planning and soil policies at different scales. By co-working with relevant stakeholders, the project provided co-developed indicators and associated cookbooks to assess and map them, to report both on soil degradation, soil-based ecosystem services and their bundles, under actual conditions and for climate and land-use changes, at the regional, national, and European scales. This data was prepared according to the methodology of SERENA Soil Sealing cookbook. For Austria, the application was carried out at regional scale. The map of soil sealing (soil threat) was based on classification of multitemporal satellite images and photointerpretation. The methodology uses vegetation and backscatter indices calculated over time series of images, and decision rules. The semi-automatic classification supports the subsequent photointerpretation phase based on national orthophotos and other free VHR satellite images.欧洲联合土壤项目（EJP SOIL）旗下内部子项目SERENA，致力于土壤多功能性 (soil multifunctionality) 评估研究，旨在为不同尺度下的土地规划与土壤政策制定提供专业评估工具。该项目通过联合相关利益方 (stakeholders) 开展协作，研发了联合评估指标及配套操作手册，可实现指标的评估与制图，并能针对区域、国家及欧盟尺度下的实际场景，以及气候变化与土地利用变化情境中的土壤退化 (soil degradation)、土壤支撑生态系统服务 (soil-based ecosystem services) 及其组合类型进行量化报告。 本数据集严格遵循SERENA土壤封闭操作手册的方法流程制备。针对奥地利区域，该方法已在区域尺度上完成应用。本次土壤封闭（土壤威胁）分布图，基于多时序卫星影像分类与目视解译 (photointerpretation) 成果制作。该方法通过影像时间序列计算得到植被指数与后向散射指数 (backscatter indices)，并结合决策规则 (decision rules) 开展分析。其中半自动分类流程可辅助后续基于国家正射影像 (orthophotos) 及其他免费极高分辨率 (Very High Resolution, VHR) 卫星影像的目视解译工作。