Evaluation of the Vegetation Coverage Resilience in Areas Damaged by the Wenchuan Earthquake Based on MODIS-EVI Data.
作者： Xiaofu Liu , Weiguo Jiang , Jing Li , Wenjie Wang
DOI: 10.3390/S17020259
关键词:
摘要: The concept of resilience was integrated into post-earthquake ecological restoration assessments in 10 counties heavily impacted by the 2008 Wenchuan earthquake. Ecological defined as time interval required for vegetation coverage to recover pre-earthquake levels damaged areas. MODIS-EVI data from May August 2000 2016 were used calculate fitting curve recovery rate (RR) versus time. following conclusions reached: (1) An area 424.1 km² sustained damage. (2) found be linear based on statistical analysis most common components areas; consequently, estimate resilience. (3) In terms coverage, 44.2% areas have already recovered. vast majority are predicted achieve 2022, but 5.3% will not within this period and no (4) management near roads, rivers mining operations, especially at elevations 2000-2500 m, slopes greater than 30°, precipitation 1200 mm, should prioritized future. (5) innovations study include method extract earthquake-related damage prediction succession
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