%0 Journal Article
%T Holocene Extreme Floods and Environmental Change of Qishuihe River in Western Guanzhong Basin<br>关中西部漆水河全新世特大洪水与环境演变
%A ZHA Xiaochun
%A HUANG Chunchang
%A PANG Jiangli
%A <br>查小春
%A 黄春长
%A 庞奖励
%J 地理学报
%D 2007
%I 
%X Palaeoflood hydrologic study was a leading subject in the global change study. Using sediment physiognomy, archaeology and OSL chronology, the palaeoflood slacking deposits were found and analyzed on T2 terrace between the Qishuihe and Weihe rivers. The results showed that 20 palaeoflood events happened in the 4 periods of 4650-4600 a BP, 4400-4300 a BP, 4200-4100 a BP and 3100-3010 a BP since 11500 a BP, respectively. Then their peak discharges were calculated according to the hydrology principle, which greatly prolonged the flood data sequence in the Qishuihe river valley. And the flood frequency curve was established to enhance the reliability to control and reduce flood disasters in this valley. This research result is not only practical to the flood control, water resources exploitation and eco-environmental construction for Yangling, a well-known agricultural and high-tech city in Northwest China, but also fills in the blank of the palaeoflood hydrologic study in the Weihe River Basin, which is of great scientific significance to the comprehensive improvement of the eco-environment of the river basin.
%K Qishuihe River
%K Wethe River drainage basin
%K extreme floods
%K environmental change
%K Holocene
%K Shaanxi province<br>漆水河
%K 渭河流域
%K 特大洪水
%K 全新世
%K 环境演变
%K 陕西省
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=F7B5B947C24B9D649491012214E4BEF4&aid=F0123EA4D84156B6&yid=A732AF04DDA03BB3&vid=95D537AC89B28832&iid=38B194292C032A66&sid=6490F0E20C4B41AD&eid=B1E36BF7B9783A85&journal_id=0375-5444&journal_name=地理学报&referenced_num=4&reference_num=48