摘要
1939年为海河流域20世纪特大洪涝灾害年之一。根据历史文献记载及观测资料,从降水过程、洪水过程及受灾情况等方面对1939年海河流域洪涝灾害过程作了梳理,得出以下结论:(1)1939年的洪涝灾害是7—8月份3次大范围集中暴雨导致的,集中降水出现于7月9—15日、7月23—29日和8月11—13日。3次暴雨中心均集中在昌平—紫荆关—中唐梅一带,其7、8两个月份总降雨量最高达到1000 mm以上,向东向西逐渐减小。(2)1939年海河流域诸河径流随着7—8月份集中降雨而出现涨落变化,稍滞后于降水变化1~2天,各河流最大流量和水位出现在7月23—29日集中降水后,并开始涨溢、决口,各河水位至8月底各河上游降雨中止而渐渐回落,9月中旬天津市区各河水位骤落,10月份以后洪水才迟缓退去,而洪水泛滥引发的涝灾一直延续到1940年。(3)1939年洪涝灾害在海河南系和北系都有发生,共造成150多个县市受灾,大部分受灾县市农业减产甚至绝收,被灾耕地面积成数超过8成的县市主要分布在大清河下游沿线、永定河下游沿线和南运河下游沿线靠近天津市的地区。
The year 1939 was one of the extreme flood years in the Hai-he River basin in the 20 th Century. Based on historical records and hydrological observation data,we analysed the process of rainfall,the route of flood and the damages of the flood disaster in 1939 in Hai-he River basin. Results are as follows：（ 1） The flood disaster that was caused by three large-scale concentrated torrential rain in July and August happened in July 9-15,July 23-29 and August 11-13 respectively. The centers of the three storm were in Changping-Zijingguan-Zhongtangmei area,where the rainfall reached over 1000 mm and gradually decreased from the center to eastward and westward.（ 2） The water levels of the rivers in Hai-he River basin rose and fell following with the change of the rainfall in July and August by lagged one to two days. All rivers reached their maximum flow and the highest water level,and began to overflow and burst,after the rainfall in July 23-29. The water levels began to fall lowly up to the end of August,when the rain season stopped in the upper reaches of the Hai-he Rivers. The water levels of rivers in Tianjin municipality dropped rapidly in mid-September,but the flood did not ended until October. However,the waterlog lasted to 1940.（ 3） The flood disaster in 1939 occurred both in the north part and the south part of the Haihe River basin. More than 150 counties were in the flood area. In most of the counties,the harvest was reduced or even no harvest production. The counties with more than 80% damaged cropland were along the lower reaches of the Daqing River and Yongding River,and the area of the lower reaches of the South Canal near by Tianjin municipality.
作者
马亚玲
叶瑜
万金红
方修琦
Ma Yaling Ye Yu Wan Jinhong Fang Xiuqi(School of Geography, Beijing Normal University, Beijing 100875 Key Laboratory of Environment Change and Natural Disaster, Ministry of Education, BNU, Beijing 100875 Institute of History of Water Conservancy, China Institute of Water Resources and Hydropower Research, Beijing 100038)
出处
《古地理学报》
CAS
CSCD
北大核心
2017年第5期927-934,共8页
Journal of Palaeogeography：Chinese Edition
基金
科技部基础性工作专项(编号:2014FY1305002009
FY220200)
国家社会科学基金重大项目(编号:13ZD092)
中国水利水电科学研究院国际水利水电科技发展动态调研项目(编号:JZ0145C11201500000)
国家自然科学基金重点项目(编号:41430528)共同资助~~
作者简介
马亚玲，女，1988年生，北京师范大学地理学与遥感科学学院2016届硕士研究生，自然地理学专业。E—mail：1058773599@qq．com。
通讯作者,叶瑜，女，1979年生，副教授，主要从事历史土地覆盖变化、历史气候变化与响应研究。E—mail：yeyuleaffish@bnu．edu．cn。
