旬阳东段汉江全新世古洪水研究
Holocene Palaeofloods Recorded in the East Xunyang Reach in the Upper Hanjiang River
查看参考文献43篇
|
文摘
|
通过对汉江上游河谷的考察,在旬阳县东段构元-棕溪乡河段发现的典型的全新世古洪水滞流沉积剖面,进行了古洪水沉积学和水文学研究。在野外考察的基础上,对于采集的全新世地层剖面序列样品,进行粒度成分和磁化率等分析测试,从沉积角度揭示了这些沉积层是古洪水在高水位滞流环境中悬移质泥沙的沉积物。通过地层对比分析确定由其记录的古洪水事件分别发生全新世早期9000~8500 a B.P.和全新世晚期3200~2800 aB.P.。利用古水文学原理恢复其洪峰水位,计算出古洪水洪峰流量介于45630~50220 m~3/s之间。结合现代洪水洪痕洪峰计算、洪峰流量与流域面积关系分析多种方法,对古洪水洪峰流量计算结果进行了验证,从而建立了更加可靠的万年尺度洪峰流量与频率关系。本文的研究成果,对汉江上游水资源开发、防洪减灾、水土保持和深入理解汉江上游水文过程对全球变化的响应规律具有重要的科学意义。 |
|
其他语种文摘
|
Integrative studies of palaeoflood hydrology were carried out in the upper reaches of the Hanjiang River,a major tributary of the Yangtze River.Two sets of palaeoflood slackwater deposits were found in the east Xunyang reach.The very typical flood slackwater deposits were identified in the slope clastic deposit profile.The NGK site in the bedrock gorges was chosen for palaeo-hydrology study.On the basis of field survey,sediment samples were taken for analyzing grain size distribution and magnetic susceptibility.The results of field observation and grain-size and magnetic susceptibility indicate that these slackwater deposits are very typical and that they have been deposited by suspended sediment load in the floodwater of the Hanjiang River.Stratigraphic correlation with ETC profile of Jinghe River basin and JJTZ profile downstream of the NGK site shows that the palaeoflood events occurred at 9000-8500 a BP and 3200-2800 a BP respectively.The flood peak discharges were reconstructed to be 45630-50220 m~3/s.Reconstruction of modern flood(2010.07.18) and comparison with the gauged discharge proved the hydrological method used and its results were reliable.And the relationship between drainage area and flood peak discharge illustrated that the reconstructed discharges were reasonable.A relationship between peak discharge and occurrence frequency at 10000-year time-scale was established.This result is very important for flood design in the hydraulic engineering,soil and water conservation and flood control,and for understanding the response of fluvial systems to global climate change. |
|
来源
|
地理科学进展
,2012,31(9):1141-1148 【核心库】
|
|
关键词
|
汉江
;
古洪水
;
滞流沉积物
;
万年尺度
;
全新世
|
|
地址
|
陕西师范大学旅游与环境学院, 西安, 710062
|
|
语种
|
中文 |
|
ISSN
|
1007-6301 |
|
学科
|
地质学 |
|
基金
|
国家社会科学基金重点项目
;
中央高校基本科研业务费专项资金
;
国家自然科学基金重点项目
|
|
文献收藏号
|
CSCD:4631698
|
参考文献 共
43
共3页
|
|
1.
谢悦波. 古洪水研究—挖掘河流大洪水的编年史.
南京大学学报：自然科学版,2001,37(3):390-395
|
CSCD被引
28
次
|
|
|
|
|
2.
Sridhar A. A mid-late Holocene flood record from the alluvial reach of the Mahi River, Western India.
Catena,2007,70(3):330-339
|
CSCD被引
20
次
|
|
|
|
|
3.
Baker V R. Palaeoflood hydrology in a global context.
Catena,2006,66(1/2):161-168
|
CSCD被引
70
次
|
|
|
|
|
4.
谢悦波. 古洪水平流沉积与水位.
地球学报,2001,22(4):320-323
|
CSCD被引
35
次
|
|
|
|
|
5.
Thorndycraft V R. A long-term flood discharge record derived from slackwater flood deposits of the Llobregat River, NE Spain.
Journal of Hydrology,2005,313(1/2):16-31
|
CSCD被引
19
次
|
|
|
|
|
6.
Baker V R. Desert palaeoflood in central Australia.
Nature,1983,301(502/504):502-504
|
CSCD被引
7
次
|
|
|
|
|
7.
James C K. Sensitivity of modern and Holocene floods to climate change.
Quaternary Science Reviews,2000,19(1/5):439-457
|
CSCD被引
46
次
|
|
|
|
|
8.
Yang D Y. Sedimentary records of large Holocene floods from the middle reaches of the Yellow River, China.
Geomorphology,2000,33(1/2):73-88
|
CSCD被引
97
次
|
|
|
|
|
9.
詹道江.
古洪水研究,2001:1-83
|
CSCD被引
43
次
|
|
|
|
|
10.
Huang C C. Impact of monsoonal climatic change on Holocene overbank flooding along Sushui River, middle reach of the Yellow River, China.
Quaternary Science Reviews,2007,26(17/18):2247-2264
|
CSCD被引
58
次
|
|
|
|
|
11.
Huang C C. Extraordinary floods of 4100-4000 a BP recorded at the Late Neolithic ruins in the Jinghe River gorges, middle reach of the Yellow River, China.
Palaeogeography, Palaeoclimatology, Palaeoecology,2010,289(3):1-9
|
CSCD被引
73
次
|
|
|
|
|
12.
Huang C C. Holocene colluviation and its implications for tracing human-inducesoil erosion and redeposition on the piedmont loess lands of the Qinling Mountains, northern China.
Geoderma,2001,36(3/4):838-851
|
CSCD被引
2
次
|
|
|
|
|
13.
Huang C C. Extraordinary floods related to the climatic event at 4200 a BP on the Qishuihe River, middle reaches of the Yellow River, China.
Quaternary Science Reviews,2011,30(3/4):460-468
|
CSCD被引
64
次
|
|
|
|
|
14.
李瑜琴. 泾河中游龙山文化晚期特大洪水水文学研究.
地理学报,2009,64(5):541-552
|
CSCD被引
47
次
|
|
|
|
|
15.
Zha X C. Palaeofloods recorded by salckwater deposits on the Qishuihe River in the middle reaches of the Yellow River.
Journal of Chinese Geography,2009,19(6):681-690
|
CSCD被引
9
次
|
|
|
|
|
16.
查小春. 关中西部漆水河全新世特大洪水与环境演变.
地理学报,2007,62(3):291-300
|
CSCD被引
40
次
|
|
|
|
|
17.
万红莲. 渭河宝鸡峡全新世特大洪水水文学研究.
第四纪研究,2010,30(2):430-440
|
CSCD被引
34
次
|
|
|
|
|
18.
周芳. 马莲河全新世古洪水沉积学和水文学研究.
地理科学进展,2011,30(9):1081-1087
|
CSCD被引
10
次
|
|
|
|
|
19.
朱向锋. 渭河天水峡谷全新世特大洪水水文学研究.
地理科学进展,2010,29(7):840-846
|
CSCD被引
13
次
|
|
|
|
|
20.
葛本伟. 龙山文化末期泾河特大洪水事件光释光测年研究.
第四纪研究,2010,30(2):422-429
|
CSCD被引
25
次
|
|
|
|
|
了解气象卫星更多信息，请访问