典型重大地震灾害对陆地植被影响数据集

地震灾害具有突发性、预测难、破坏大和易诱发次生灾害等特点。地震所引发的滑坡、海啸等次生灾害可对地表植被造成较严重的破坏，导致震区生态环境恶化。研究地震区植被的受损情况以及植被恢复状况，对灾后重建工作、改善生态环境、协调经济社会发展等具有重要意义。基于GLASS叶面积指数（LAI）产品和植被覆盖度（FVC）产品，2010年的全球30m土地利用数据，以及全球灾害事件数据库（Emergency events database，EM-DAT），利用时间序列分析和空间统计分析等方法，研究地震灾害影响下的陆地植被变化情况与滞后效应。Earthquakes are characterized by sudden occurrence, difficulty in prediction, severe destructiveness, and high propensity to trigger secondary disasters. Secondary disasters such as landslides and tsunamis triggered by earthquakes can cause serious damage to surface vegetation, leading to the deterioration of the ecological environment in seismically affected areas. Studying the vegetation damage and recovery status in seismically affected areas is of great significance for post-disaster reconstruction, ecological environment improvement, and coordinated economic and social development. Based on the GLASS Leaf Area Index (LAI) product, Vegetation Fractional Cover (FVC) product, 2010 global 30m land use data, and the Emergency Events Database (EM-DAT), this study adopts methods including time series analysis and spatial statistical analysis to investigate terrestrial vegetation changes and their lag effects under the influence of earthquake disasters.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于典型重大地震灾害对陆地植被的影响，基于1982-2016年的GLASS叶面积指数和植被覆盖度产品，结合全球土地利用和灾害事件数据，通过时间序列和空间统计分析，研究植被变化及其滞后效应。数据覆盖全球陆地，分辨率为30米，采用栅格格式，具有高精度和严格质量控制，适用于灾后重建和生态环境研究。