| 黄河下游南四湖地区黄河河道变迁的湖泊沉积响应 |
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| 引用本文： | 张振克,王苏民,沈吉,吴艳宏,夏威岚,张祖陆.黄河下游南四湖地区黄河河道变迁的湖泊沉积响应[J].湖泊科学,1999,11(3):231-236. |
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| 作者姓名： | 张振克 王苏民 沈吉 吴艳宏 夏威岚 张祖陆 |
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| 作者单位： | [1]中国科学院南京地理与湖泊研究所湖泊沉积与环境开放研究实 [2]中国科学院南京地理与湖泊研究所湖泊沉积与环境开 |
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| 基金项目： | 中国科学院与山东自然科学基金!（Y95－60367〕 |
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| 摘 要： | 黄河下游地区湖泊演化多与黄河河道变迁密切相关，进行高分辨率的湖泊沉积环境的研究，可揭示历史时期黄河下游的河道变迁，本文以南四湖ＤＳ孔为例，探讨河道变迁的湖泊沉响应。
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| 关 键 词： | 湖泊沉积 河道变迁 黄河下游地区 南四湖 |
| 收稿时间： | 1997/8/13 0:00:00 |
| 修稿时间： | 1998/10/23 0:00:00 |
River Channel Changes Recorded by Lake Sediments in Nansiliu Lake, the Lower Reaches of the Yellow River |
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| ZHANG Zhen-ke,WANG Su-min,SHEN Ji,XIA Wei-lan,WU Yan-hong and ZHANG Zu-lu.River Channel Changes Recorded by Lake Sediments in Nansiliu Lake, the Lower Reaches of the Yellow River[J].Journal of Lake Science,1999,11(3):231-236. |
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| Authors: | ZHANG Zhen-ke WANG Su-min SHEN Ji XIA Wei-lan WU Yan-hong and ZHANG Zu-lu |
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| Institution: | Lake Sedimentation and Environment Lab., Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008;Departoment of Gengraphy and Oceanology. Nanjing University, Nanjing 210093,Lake Sedimentation and Environment Lab., Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008,Lake Sedimentation and Environment Lab., Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008,Lake Sedimentation and Environment Lab., Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008,Lake Sedimentation and Environment Lab., Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008 and College of Resource and Environment, Sfiancloug Nortnul University, Jinan 250014 |
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| Abstract: | The historical changes of river channel (river floods) in the lower reaches of the Yellow River has been hotly debated by the historians in China. In Nansihu Lake area, the sedimental environment has undergone great change, since the evolutionary history of the lake was strongly affected by floods of Yellow River in historical times. High-resolution lacustrine sediments, reflecting the history of lake evolution, could be used to decipher foe changes of river channel (river floods) In the Lower Reaches of the Yellow River. Two sedimentary cores (DS_1 and DZ_2 ) are taken by Liv- ingstone in Dushan Lake, one of the sub-lakes of Nansihu Lake, 1996. The analysis of environmental indexes including pigments, TOC, TN and magnetic susceptibility, frequency dependent susceptibility, of lake sediments in tile cores of DS is synthesized to indicate the environment changes in Nansihu Lake in the past 3000 years. About 2400aBP a clear environmental change occurred in the catchment of Nansihu Lake. From BC400's to AD170's and AD1200, s - 1870's are two main floods periods on the lower reaches of the Yellow River. Before 2400aBP the lake was not formed in the area which may be a depression in the edge of fluvial fan of the Sihe River and the Chenghe River. After 2400aBP the lake came into being and was enlarged due to the alluvial fan emerging from the overflow of the Yellow River, especially in BC400 - AD170 and AD1200 - 1870. The link-up of the Grand Canal and the requisition for canal transportation from the 13th century to AD1870 accelerated the lake expansion. From 1872, Nanyang Lake, Dushan Lake, Shaoyang Lake and Weishan Lake were united into one large lake - Nansihu Lake. |
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| Keywords: | Lake sediments river channel changes the lower reaches of the Yellow River Nansihu Lake |
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