人民长江Issue(15)：65-68,4.DOI:10.16232/j.cnki.1001-4179.2015.15.016
基于结果验证的信息量法地质灾害易发性评价--以贵州省开阳县为例
Geohazard susceptibility assessment by using information quantity model with result validation:a case study in Kaiyang County, Guizhou Province
摘要
Abstract
The traditional information quantity model synthesizes all the evaluation factors without optimization, which is sub-jective. Therefore, the results validation is adopted to improve the information quantity model by selecting seven evaluation fac-tors, namely lithology, fault, stream, road, slope ratio, slope direction and profile curvature. Firstly, the geological logging data and the evaluation factors are employed to carry out an overlay analysis, so the information value of single factor is obtained. Sec-ondly, the success ratio curve method is used to evaluate the model fitting capacity of the single factor;the information quantity of evaluation factors are ranked according to the model fitting capacity, and seven sets of total information quantity are obtained by trial calculation. Finally, the calculation results are evaluated so as to provide an assessment to the model fitting capacity, and the combination of top 4 AUC factors is determined as the best.关键词
信息量法/结果验证/地质灾害/易发性评价/开阳县Key words
information quantity model/results validation/geohazard/susceptibility assessment/Kaiyang County分类
天文与地球科学引用本文复制引用
范强,巨能攀,向喜琼,黄健..基于结果验证的信息量法地质灾害易发性评价--以贵州省开阳县为例[J].人民长江,2015,(15):65-68,4.基金项目
国家自然科学基金项目(41302242) （41302242）
