| 白龙江流域全新世泥石流与环境演变的初步研究 |
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| 引用本文： | 王建力,王勇,师玉娥. 白龙江流域全新世泥石流与环境演变的初步研究[J]. 西南师范大学学报(自然科学版), 2000, 25(4): 452-456 |
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| 作者姓名： | 王建力 王勇 师玉娥 |
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| 作者单位： | 西南师范大学资源与环境科学学院, 重庆 400715 |
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| 摘 要： | 根据黄土－古土壤沉积序列研究和野外考察资料并结合放射性＾１４Ｃ测年，初步确定嘉陵江上游白龙江流域全新世泥石流共分三期，时代分别为７０００－６０００ａＢＰ、４０００ａＢＰ和２０００ａＢＰ。研究表明，泥石流频繁爆发于古气候由寒冷向温暖转换的波动时期。
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| 关 键 词： | 泥石流 全新世 环境演变 青藏高原 白龙江流域 |
| 文章编号： | 1000-5471(2000)04-0452-05 |
| 修稿时间： | 2000-03-20 |
A preliminary study on debris flow and environmental evolution in Holocene at the Bailongjiang River Valley |
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| WANG Jian|li,WANG Yong,SHI Yu|e. A preliminary study on debris flow and environmental evolution in Holocene at the Bailongjiang River Valley[J]. Journal of southwest china normal university(natural science edition), 2000, 25(4): 452-456 |
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| Authors: | WANG Jian|li WANG Yong SHI Yu|e |
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| Abstract: | Six typical Holocene debris flow sections were studied in detail at the Bailongjiang River system, which is located in the eastern margin of Qinghai-Xizang Plateau. Based on the stratigraphy of loess-paleosol sequences, {14}C datings and debris flow deposition, the evolution of debris flow in Holocene can be divided into three stages, which are around 7 000 aBP to 6 000 aBP, 4 000 aBP and 2 000 aBP respectively. The debris flow erupted frequently at the shift of relative cold climate to warm climate. |
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| Keywords: | Debris flow Holocene Environmental change Qinghai|Xizang plateau |
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