People.cn (SH:603000) Ren Min Wang·2025-11-18 02:05Core Insights - The research team led by Fu Bihong conducted integrated monitoring and field scientific investigation of the Jiuzhaigou World Heritage site, utilizing multiple drones and various payloads for remote sensing and satellite data validation [1][2] - The ecological recovery of the Jiuzhaigou site has shown significant improvement after eight years of natural recovery and artificial management, with infrastructure development being relatively complete [1] Summary by Sections Ecological Recovery - The vegetation coverage in Jiuzhaigou decreased from 83.35% before the earthquake to 79.64% after, but has gradually increased to 80.91% in 2022, 81.68% in 2023, and 82.12% in 2024, indicating a trend of reduced low-coverage areas and increased mid-high coverage [1] - The overall stability of vegetation coverage has improved, reflecting successful ecological restoration efforts [1] Monitoring and Assessment - Since the 7.0 magnitude earthquake on August 8, 2017, the research team and Jiuzhaigou management have utilized multi-platform, multi-temporal, multi-spectral, and multi-dimensional satellite remote sensing data alongside drone surveys for comprehensive monitoring [2] - The monitoring efforts have focused on vegetation coverage changes, ecological recovery status, landslide management, and secondary geological disaster mitigation, providing essential scientific data and spatial information technology support for sustainable development post-earthquake [2]