Phytosanitary status of the forest masses of Spanish national parks

It contains information on defoliation and average discoloration of trees from the 234 plots (points) of the Network for monitoring the phytosanitary status of forest masses in national parks. The project began in 1986 in some national parks, and since then examines the health of the forests of these natural areas through sampling points, the monitoring of established routes that run through the forest masses as a whole, and the assessment and evolution of specific phytosanitary problems. It is carried out in the 13 national parks with relevant forest masses (all but Timanfaya and the Daimiel Tables). This inventory is based on a denser network than that of level I existing at European and national level, formed approximately by grids of 4 x 4 km, at whose intersection the observation points are constituted, each of which of 24 type trees, observing the same individuals each year, in field visits that take place in summer-autumn. The initiative is integrated into the Monitoring and Evaluation Plan of the National Parks Network. More information at https://www.miteco.gob.es/es/red-parques-nacionales/plan-seguimiento-evaluacion/seguimiento-ecologico/fitosanitario.aspx.本数据集收录国家公园森林群落植物卫生（phytosanitary）状况监测网络的234个样地（测点）内的树木落叶程度与平均变色情况数据。该项目于1986年在部分国家公园启动，自此通过布设采样点、监测贯穿整片森林群落的既定路线，以及评估特定植物卫生问题的发生与演化进程，对上述自然区域的森林健康状况开展长期监测。本次监测覆盖13个拥有典型森林群落的国家公园（仅排除蒂曼法亚（Timanfaya）与戴米埃尔台地（Daimiel Tables））。本调查依托的监测网络密度高于欧洲及国家级一级监测网络，其大致由4×4千米的网格构成，观测点设置于网格交点处；每个测点配置24株标准类型样树，每年夏秋季开展野外调查时均对同一植株进行重复观测。本项目纳入国家公园网络监测与评估计划。更多信息请访问：https://www.miteco.gob.es/es/red-parques-nacionales/plan-seguimiento-evaluacion/seguimiento-ecologico/fitosanitario.aspx。