中国致命性滑坡的趋势

here have a large number of slope movements occurred in China annually. Especially, fatal landslides are the most hazardous, causing serious fatalities and significant economic loss. In this study, the data of fatal landslides were collected from China geological environment information site and Ministry of Land and Resources of China in the period 2004-2016. Then a statistical analysis of the data was carried out to explore the trend of fatal landslide and the distribution of its losses in economic and fatality. In the studied period, a total of 4,718 deaths are collected resulting from 537 fatal landslides. It represents a frequency of 42 events and an average of 363 deaths every year. Meanwhile, fatal landslides fatalities are getting closer to total deaths of all geological hazards with the disaster records improvement. Although the economic loss of fatal landslides accounts for a small proportion of all hazards loss, however, the total amount is still enormous, 6.75 billion yuan recorded. The spatial distribution of fatal landslides shows intensive clusters in Southwest and Southern China, particularly densely distributing in Sichuan, Yunnan, and Hunan. Then the temporal distribution reveals a strong correlation with the main raining season, with the largest quantity of events occurring between June and September. Among the fatal landslides of which triggering factors have been recognized, 81.8% are associated with rainfall. This research gives a comprehensive recognition of fatal landslides trend and provides baseline information for disaster prevention and mitigation.