川西地质灾害风险时空变化及障碍因子诊断
杨衡钧, 杨鑫, 周雄

Spatiotemporal variations of geological disaster risk and obstacle factor diagnosis: A case study of the western Sichuan region
YANG Hengjun, YANG Xin, ZHOU Xiong
图9 风险变化趋势拟合分析
Fig.9 Fitting analysis of risk change trend