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引用本文:杨达源,张强,葛兆帅,任黎秀,何太蓉,蒋晓伟.中全新世以来的川江大洪水初步分析.湖泊科学,2003,15(Z1):216-220. DOI:10.18307/2003.sup26
YANG Dayuan,ZHANG Qiang,GE Zhaoshuai,REN Lixiu,HE Tairong,JIANG Xiaowei.imary Analysis of Heavy Floods since Middle Holocene in the Sichuan Section Reaches of the Changjiang River. J. Lake Sci.2003,15(Z1):216-220. DOI:10.18307/2003.sup26
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中全新世以来的川江大洪水初步分析
杨达源1, 张强2, 葛兆帅1, 任黎秀1, 何太蓉1, 蒋晓伟1
1.南京大学城市与资源学系, 南京 210093;2.中国科学院南京地理与湖泊研究所, 南京 210008
摘要:
在忠县中坝文化遗址剖面中发现了10个古洪水沉积层,时代为中全新世以来,之后又被1981年大洪水淹没.11次大洪水洪水位的变化显示洪水位总体呈上升趋势,其间有数个周期性起伏.前者反映中全新世以来河床堆积的影响,后者反映西南季风强度的周期变化.
关键词:  川江  大洪水  中全新世以来
DOI:10.18307/2003.sup26
分类号:
基金项目:中国科学院知识创新工程重要方向项目(长江中下游洪水孕灾环境变化、致灾机理与减灾对策,KZCX3—SW-331),国家自然科学基金资助项目(402?2126),中科院南京地理与湖泊研究所所长基金资助项目
imary Analysis of Heavy Floods since Middle Holocene in the Sichuan Section Reaches of the Changjiang River
YANG Dayuan1, ZHANG Qiang2, GE Zhaoshuai1, REN Lixiu1, HE Tairong1, JIANG Xiaowei1
1.Department. Geography, Nanjing University, Narying 210093, P. R. China;2.Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, P. R. China
Abstract:
10 deposited layers of ancient floods were found in the profile of Zhongba Cultural Site. They were formed since Middle Holocene, and were submerged by the large flood of 1981 AD. The change in Sichuan Province elevation of these 11 large floods shows an arising tendency and several short-term fluctuation circles in the period. The former reflects the influence of deposition in the river channel since Middle Holocene. The latter reflects the periodical change of Southwest Monsoon intensity reached above the Sichuan basin.
Key words:  Chuanjiang reaches of the Changjiang River  large floods  since Middle Holocene
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