明清时期陕南汉江上游山地灾害研究  

Mountain hazards of upper reaches of the Hanjiang River in southern Shaanxi in Ming and Qing dynasty

作　　者：党群[1,2] 殷淑燕[1] 殷方圆[1] 李慧芳[1] 王蒙[1] 

机构地区：[1]陕西师范大学旅游与环境学院,陕西西安710119 [2]西安科技大学管理学院,陕西西安710054

出　　处：《陕西师范大学学报（自然科学版）》2015年第5期76-83,共8页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金(41371029);中央高校基本科研业务费创新团队项目(GK201301003);西安科技大学培育基金(201111)

摘　　要：根据陕南汉江上游明清时期山地灾害史料,统计分析了1368—1911年陕南汉江上游地区山地灾害发生频率,并对发生的时空规律进行了探讨。结果表明:明清时期研究区山地灾害主要有河谷洪水、山坡重力作用和泥石流,灾害总体呈波动上升趋势,平均2.9年发生一次。山地灾害可分为4个阶段:1368—1467年呈减少趋势,1468—1567年呈上升趋势,1568—1717年呈下降趋势,1718—1911年为高频时期。研究区山地灾害季节分布不均,主要发生在夏秋两季的6—9月。山地灾害发生频次在空间分布上存在差异,安康盆地的安康市和旬阳,汉中盆地的勉县、南郑为高频中心;而大巴山地的岚皋、镇坪,秦岭南麓的洛南、商南、山阳、丹凤为低频中心。研究区地质地貌是山地灾害发生的基础,气候水文是主导,人类活动是山地灾害的致灾因子。Based on the historical document of mountain hazards in the upper reaches of the Hanjiang River,southern Shaanxi from 1368 to 1911,the frequency,the temporal and spatial variation of mountain hazards were statistically analyzed.The results showed that,in Ming and Qing dynasty,mountain hazards were mainly flood in river valley,gravity erosion in hillside and debris flow.The occurring frequency is 2.9years,and showed an increasing trend.The mountain hazards have been divided into four periods.It showed a decreasing trend from 1368 to 1467,the decreasing trend from 1468 to 1567,the descending trend again from 1568 to 1717,and it had the most hazards from 1718 to 1911.In temporal,the hazards were concentrated on summer and autumn,from June to September.In spatial,there were high-frequency centers and lowfrequency centers.The geology and geomorphology,and the climate were the main causes producing mountain hazards.The human activity was the affected body and the cause of mountain hazards at the same time.

关 键 词：明清时期 陕南汉江上游 山地灾害 

分 类 号：P467[天文地球—大气科学及气象学]