将基于主客观加权模型的滑坡地质灾害空间区划方法和基于有效雨量模型的滑坡地质灾害时间区划方法进行组合,建立滑坡地质灾害时间-空间敏感性区划模型.使用该模型对四川省进行区划研究,并耦合川藏铁路(成都-雅安段)线路平面,得到线域滑坡地质灾害时间-空间敏感性等级.研究结果表明:四川省滑坡地质灾害时间-空间敏感性较高区域面积为230432.6 km2,占全省面积47.78%,主要分布在南部、中部局部、东南局部和东北局部;川藏铁路(成都-雅安段)线域滑坡地质灾害敏感性较高的线路长度为23.26 km,占比为58.66%,分布在K97+728.00~K120+992.61路段.%Landslide spatiotemporal susceptibility mapping model was established by combining landslide spatial mapping method, which is based on subjective and objective integrated weighting model, with landslide temporal mapping method based on effective rainfall model. The landslide spatiotemporal susceptibility map of Sichuan Province was obtained using this model. By coupling Chengdu-Yaan section in Sichuan-Tibet railway, the landslide spatiotemporal susceptibility grade of this railway line was acquired. The results show that the coverage area of high susceptible zone in Sichuan Province is 230 432.6 km2, accounting for 47.78% of the whole province area. These areas are mainly distributed in south, central, southeast and northeast land. The railway line of high susceptible zone is 23.26 km, occupying 58.66% of the total, distributing in K97+728.00~K120+992.61 section.
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